GMC C-Series 2001 Page 167 Owner'S Manual Download | Manualshive

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To engage a PTO while in mobile variable mode:

1. Select the desired drive gear. Do not hold the brake

or clutch pedal down.

2. The PTO Enable and cruise control (if equipped)

switch must be in ON.

3. Press the accelerator pedal to the desired

engine speed.

4. Engine speed is controlled by the turn

signal/multifunctional lever.

A. The SET position holds the engine speed selected

by the accelerator pedal.

B. With the optional cruise control:

RESUME/ACCEL increases engine speed by
25 rpm. SET/COAST decreases engine speed
by 25 rpm.

C. Without the optional cruise control: PTO UP

increases engine speed by 25 rpm. PTO DOWN
decreases engine speed by 25 rpm.

The PTO engine speed controls will become inoperative
when any of the conditions are changed, the brake or
clutch pedal is pressed or the switch is turned off.

For more information regarding the PTO settings please
see your GM dealer for assistance.

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Summary of Contents for C-Series 2001

Page 1: ......

Page 2: ...oblems on the Road This section tells you what to do if you have a problem while driving such as a flat tire or overheated engine etc 6 1 Service and Appearance Care Here the manual tells you how to k...

Page 3: ...r it appears in this manual Please keep this manual in your vehicle so it will be there if you ever need it when you re on the road If you sell the vehicle please leave this manual in it so the new ow...

Page 4: ...d a number of safety cautions in this book We use a box and the word CAUTION to tell you about things that could hurt you if you were to ignore the warning CAUTION These mean there is something that c...

Page 5: ...hing that can damage your vehicle Many times this damage would not be covered by your warranty and it could be costly But the notice will tell you what to do to help avoid the damage When you read oth...

Page 6: ...ave to do with your lamps MASTER LIGHTING SWITCH TURN SIGNALS PARKING LAMPS HAZARD WARNING FLASHER DAYTIME RUNNING LAMPS FOG LAMPS These symbols are on some of your controls WINDSHIELD WIPER WINDSHIEL...

Page 7: ...Series models delivered from the factory are finished in a variety of ways by a number of companies you ll probably find other manuals in your finished vehicle These manuals are put there by the compa...

Page 8: ...Safety Belts They re for Everyone 1 11 Here are Questions Many People Ask About Safety Belts and the Answers 1 12 How to Wear Safety Belts Properly 1 12 Driver Position 1 22 Safety Belt Use During Pre...

Page 9: ...use you or make you push a pedal when you don t want to Adjust the driver s seat only when the vehicle is not moving Bucket and Bench Seats If your vehicle has a bucket or bench seat you can adjust it...

Page 10: ...rd to let you reach the rear of the cab Bucket seats have outboard mounted levers to tilt the seatbacks forward or rearward Your seatback will move back and forth freely unless you come to a sudden st...

Page 11: ...injury to the person sitting there Always press rearward on the seatback to be sure it is locked National Seats If Equipped If your vehicle has the low back National seat there are six ways you can ad...

Page 12: ...nob on the front outboard side of the seat Push the knob to inflate Pull the knob to deflate To adjust the height of the cushion lift the cushion height adjustment handle up and forward You can choose...

Page 13: ...ssenger s side The seat will lock in at 1 2 inch 1 5 cm increments The lever is located underneath the seat in the front Chugger Snubber Lock Out Feature If Equipped If your vehicle has this feature t...

Page 14: ...r safety belt and check that your passengers belts are fastened properly too CAUTION It is extremely dangerous to ride in a cargo area inside or outside of a vehicle In a collision people riding in th...

Page 15: ...ive But most crashes are in between In many of them people who buckle up can survive and sometimes walk away Without belts they could have been badly hurt or killed After more than 30 years of safety...

Page 16: ...1 9 If the vehicle hits something it stops right then But nothing stops the people They keep moving Then something will stop them It could be the windshield...

Page 17: ...sengers were to give that big vehicle a chance to deal with the force of the impact instead of you With belts you slow down as the vehicle does You get more time to stop You stop over more distance an...

Page 18: ...ey work with safety belts not instead of them Every air bag system ever offered for sale has required the use of safety belts Even if you re in a vehicle that has air bags you still have to buckle up...

Page 19: ...vehicle see the part of this manual called Children Follow those rules for everyone s protection First you ll want to know which restraint systems your vehicle has We ll start with the driver position...

Page 20: ...plate and keep pulling until you can buckle the belt Pull up on the latch plate to make sure it is secure If the belt is pulled out all the way so that it locks press down on the button on the retract...

Page 21: ...n B 5 To make the lap part tight on suspension type seats B pull down on the buckle end of the belt as you pull up on the shoulder belt If the shoulder belt is too tight D Pull out the belt at least 5...

Page 22: ...like a window shade To add a little slack pull down on the shoulder belt just a little no more than 1 inch 25 mm D If it s now too loose pull it out like you did before and start again D If you move a...

Page 23: ...you d be less likely to slide under the lap belt If you slid under it the belt would apply force at your abdomen This could cause serious or even fatal injuries The shoulder belt should go over the sh...

Page 24: ...give nearly as much protection this way CAUTION You can be seriously hurt if your shoulder belt is too loose In a crash you would move forward too much which could increase injury The shoulder belt s...

Page 25: ...ou can be seriously injured if your belt is buckled in the wrong place like this In a crash the belt would go up over your abdomen The belt forces would be there not at the pelvic bones This could cau...

Page 26: ...be seriously injured if you wear the shoulder belt under your arm In a crash your body would move too far forward which would increase the chance of head and neck injury Also the belt would apply too...

Page 27: ...sted across the body CAUTION You can be seriously injured by a twisted belt In a crash you wouldn t have the full width of the belt to spread impact forces If a belt is twisted make it straight so it...

Page 28: ...ack out of the way For a suspension type seat if the belt is pulled out all the way so that it locks press down on the button on the retractor cover to make it retract Before you close the door be sur...

Page 29: ...worn as low as possible below the rounding throughout the pregnancy The best way to protect the fetus is to protect the mother When a safety belt is worn properly it s more likely that the fetus won t...

Page 30: ...has a full bench seat or a two passenger bench seat someone can sit in the center position When you sit in a center seating position you have a lap safety belt which has no retractor To make the belt...

Page 31: ...one in a vehicle needs protection This includes infants and all other children Neither the distance traveled nor the age and size of the traveler changes the need for everyone to use safety restraints...

Page 32: ...uch until a crash During a crash a baby will become so heavy it is not possible to hold it CAUTION Continued CAUTION Continued For example in a crash at only 25 mph 40 km h a 12 lb 5 5 kg baby will su...

Page 33: ...raint will have a label saying that it meets federal motor vehicle safety standards The restraint manufacturer s instructions that come with the restraint state the weight and height limitations for a...

Page 34: ...resent real problems in a medium duty vehicle like yours The only place where you can properly secure a child restraint is the center seating position the place that has the lap belt only But your veh...

Page 35: ...ack of the infant The harness system holds the infant in place and in a crash acts to keep the infant positioned in the restraint A forward facing child seat C E provides restraint for the child s bod...

Page 36: ...child restraints have used the adult belt system in the vehicle To help reduce the chance of injury the child also has to be secured within the restraint The vehicle s belt system secures the add on c...

Page 37: ...securing an add on child restraint refer to the instructions that come with the restraint which may be on the restraint itself or in a booklet or both and to this manual The child restraint instructio...

Page 38: ...In Canada the law requires that forward facing child restraints have a top strap and that the strap be anchored In the United States some child restraints also have a top strap If your child restrain...

Page 39: ...estraint when and as the instructions say But don t use this position if the child restraint interferes with shifting gears See the earlier part about the top strap if the child restraint has one 1 Ma...

Page 40: ...down on the child restraint If you re using a forward facing child restraint you may find it helpful to use your knee to push down on the child restraint as you tighten the belt 6 Push and pull the c...

Page 41: ...le an older child should wear a lap shoulder belt and get the additional restraint a shoulder belt can provide The shoulder belt should not cross the face or neck The lap belt should fit snugly below...

Page 42: ...r belt but the child is so small that the shoulder belt is very close to the child s face or neck A Move the child toward the center of the vehicle but be sure that the shoulder belt still is on the c...

Page 43: ...in this way in a crash the child might slide under the belt The belt s force would then be applied right on the child s abdomen That could cause serious or fatal injuries Wherever the child sits the...

Page 44: ...tch plates retractors and anchorages are working properly Look for any other loose or damaged safety belt system parts If you see anything that might keep a safety belt system from doing its job have...

Page 45: ...l Engine Exhaust Brake 2 20 Two Speed Rear Axle Electric Shift Control If Equipped 2 23 Automatic Transmission Operation 2 25 Manual Transmission Operation 2 27 Parking 2 33 Parking Over Things That B...

Page 46: ...cle with the windows closed is dangerous A child can be overcome by the extreme heat and can suffer permanent injuries or even death from heat stroke Never leave a child alone in a vehicle especially...

Page 47: ...have power windows the controls are on each door The driver s door has a switch for the passenger s window as well Your power windows will not move unless the ignition switch is turned to ON Push the...

Page 48: ...le with the ignition key is dangerous for many reasons A child or others could be badly injured or even killed They could operate the power windows or other controls or even make the vehicle move Don...

Page 49: ...m to the first owner Each plug has a code on it that tells your dealer or a qualified locksmith how to make extra keys Keep the plugs in a safe place If you lose your keys you ll be able to have new o...

Page 50: ...y and lock the doors whenever you drive D Young children who get into unlocked vehicles may be unable to get out A child can be overcome by extreme heat and can suffer permanent injuries or even death...

Page 51: ...ly in some cities and even commercial vehicles are no exception Although your vehicle has a number of theft deterrent features we know that nothing we put on it can make it impossible to steal However...

Page 52: ...D Avoid making hard stops for the first 200 miles 322 km or so During this time your new brake linings aren t yet broken in Hard stops with new linings can mean premature wear and earlier replacement...

Page 53: ...l damage to the starter If the starter motor overheats and shuts off due to over cranking the motor must cool down before the switch will reset and allow you to operate the starter It can take up to s...

Page 54: ...or will disengage if after two seconds the starter pinion gear does not engage the flywheel or there is no engine rpm signal from the engine speed sensor Starting Your Engine 1 Without pushing the acc...

Page 55: ...Automatic Transmission If you have to restart the engine while the vehicle is moving you ll first have to shift the automatic transmission to NEUTRAL N This safety feature prevents starting the engine...

Page 56: ...s how to do it without damaging your vehicle See Towing Your Vehicle in the Index Restarting the Diesel Engine While Moving Automatic Transmission If you have to restart the engine while the vehicle i...

Page 57: ...starting fluid or you could damage your engine If you have the GM system use only GM approved starting fluid that has been tested to establish compatibility with the air inlet heater system Diesel Eng...

Page 58: ...ne and get another 25 seconds of operation Do this only if you have to since there is a problem that can harm the engine if it isn t fixed Engine automatic shutdown for gasoline engines requires activ...

Page 59: ...ssion if equipped is in NEUTRAL N The manual fast idle feature is activated by pressing the switch on the instrument panel When the switch is pressed again or any of the previous conditions are not me...

Page 60: ...o rise within 15 seconds of starting stop the engine and find the cause D If the engine coolant temperature gage needle goes into the hot area on the gage stop the engine and find the cause of the ove...

Page 61: ...ion and reduce engine life Engine idle speed should be increased to 1200 rpm whenever extended idle is required Once started the engine should be placed under load to allow the engine coolant temperat...

Page 62: ...s 4 Before starting the engine be sure to unplug the cord How long should you keep the coolant heater plugged in The answer depends on the outside temperature Above 32_F 0_C the coolant heater is not...

Page 63: ...rpm as shown on the Engine Information Plate Do not exceed 2900 rpm The accelerator and clutch pedals must be released in order for the exhaust brake to engage Whenever the exhaust brake is active th...

Page 64: ...eadliner above the windshield or in another place near the driver that show how to use it Be sure to follow the directions carefully Use the following directions based on the type of shift control you...

Page 65: ...standstill and then operate the transmission normally Manual Transmission The switch for the rear axle shift control is on the shift lever When the switch is up the rear axle is in the high range Push...

Page 66: ...om LOW to HI move the lever to the HI position disengage the clutch pause engage the clutch and then press down on the accelerator When you shift the axle down from HI to LOW you don t have to clutch...

Page 67: ...these With some of the transmissions you will find another manual in your vehicle that goes into more detail On the headliner in front of and above the driver or in some other place near the driver yo...

Page 68: ...ddenly You or others could be injured To be sure your vehicle won t move even when you re on fairly level ground always set your parking brake and move the shift lever to PARK P CAUTION Shifting out o...

Page 69: ...e the clutch begins its engagement If you do you can cause damage to your vehicle Double Clutching You must use the double clutching method when you shift an unsynchronized gear set Disengage the clut...

Page 70: ...EUTRAL N when the vehicle is moving Clutch Brake Vehicles with Non Synchronized Transmission A clutch brake is used to stop transmission input shaft rotation so that FIRST 1 or REVERSE R gear selectio...

Page 71: ...the engine running shift the two speed rear axle into low To be sure it s in low you ll need to move the vehicle in gear just a little 2 Hold the regular brake pedal down with your right foot 3 Apply...

Page 72: ...ying the parking brake except while burnishing the parking brake linings see Propshaft Brake Burnish Procedure in the Index You can easily adjust the parking brake by turning the knob on the lever Tur...

Page 73: ...eone or something If your vehicle has this system you will have a knob located to the right of the steering column To apply the parking brake pull the knob toward you Then shift the transmission to NE...

Page 74: ...ike someone or something When both of these knobs are pushed in either hold the regular brake pedal down or if you have it pull out the blue TRACTOR PARKING knob to keep your rig from moving If your v...

Page 75: ...oth the yellow SYSTEM PARK and the red TRAILER AIR SUPPLY knobs This will charge your trailer s air system If you have the blue TRACTOR PARKING knob pull it out to set the tractor brakes while the air...

Page 76: ...ht will come on If the air pressure drops to 40 to 45 psi 275 to 309 kPa the SYSTEM PARK knob will automatically pop out and apply the spring brakes If you ever have a complete loss of air so that you...

Page 77: ...ciousness and death You might have exhaust coming in if D Your exhaust system sounds strange or different D Your vehicle gets rusty underneath D Your vehicle was damaged in a collision D Your vehicle...

Page 78: ...tting One place this can happen is a garage Exhaust with CO can come in easily NEVER park in a garage with the engine running Another closed in place can be a blizzard See Blizzard in the Index CAUTIO...

Page 79: ...el If you have the optional air horn it is controlled by a cord that you ll find up above and to the left of the driver The harder you pull on the cord the louder the air horn will sound The air horn...

Page 80: ...is finished the lever will return automatically An arrow on the instrument panel cluster will flash in the direction of the turn or lane change To signal a lane change just raise or lower the lever un...

Page 81: ...o the center position An arrow on the instrument panel cluster will flash in the direction of the turn when the lever is in the up or down position This system replaces the turn signal feature on the...

Page 82: ...Windshield Wipers The windshield wipers are controlled by turning the band with the wiper symbol on it For a single wiping cycle turn the band to MIST Hold it there until the wipers start then let go...

Page 83: ...dshield Washer At the top of the multifunction lever there s a paddle with the word PUSH on it To spray washer fluid on the windshield push the paddle CAUTION In freezing weather don t use your washer...

Page 84: ...nsmission and you apply your brakes the cruise control will shut off If you have a manual transmission and you apply your brakes or push the clutch pedal the cruise control will shut off CAUTION D Cru...

Page 85: ...t 4 Take your foot off the accelerator pedal Resuming a Set Speed Once you re going about 30 mph 48 km h or more you can move the cruise control switch from ON to R A Resume Accelerate briefly The veh...

Page 86: ...ds the cruise control will automatically turn off The cruise control function will be made available again the next time the engine is started Reducing Speed While Using Cruise Control Press in the bu...

Page 87: ...ower gear to keep your speed down Of course applying the brake or clutch takes you out of cruise control Many drivers find this to be too much trouble and don t use cruise control on steep hills Endin...

Page 88: ...e way if you have to Use this control only when you re driving Don t use it for parking or to hold the rig on a hill CAUTION Using the trailer brake hand control for parking or for holding the vehicle...

Page 89: ...ifferentials so that power is transmitted equally to both rear axles Let up on the accelerator before you turn on your inter axle differential lock When you turn on this control the DIFF LOCK indicato...

Page 90: ...like one or even both wheels may start to slip you can use this control It locks your rear differential so that power is transmitted equally to both rear wheels Let up on the accelerator before you tu...

Page 91: ...e supply is closed off from the front scoop and an under hood air supply is opened This control is intended only for use in cold weather 32_ F 0_ C or below where snow and ice might plug the external...

Page 92: ...nd clearance lamps switch D Taillamps D Instrument Panel Lights D License Plate Lamps Push the bottom left switch to turn on the headlamps as well as all of the lamps just listed Push the switch marke...

Page 93: ...daytime running lights are required on all vehicles first sold in Canada The high and low beam headlamps will come on at reduced brightness in daylight when the following conditions are met D The igni...

Page 94: ...instrument panel just above the radio If your vehicle doesn t have a radio the switch is located just above the storage area Use the switch to operate your clearance and marker lamps The marker lamps...

Page 95: ...ped Press the tab under the mirror to reduce glare at night from headlamps behind you Outside Mirrors Adjust the outside mirror or mirrors by hand so you can just see a little of the side of your vehi...

Page 96: ...hanging lanes Heated Outside Mirrors If Equipped If your vehicle has heated mirrors you ll find this switch on the upper right side of your instrument panel area just above the radio Use it to operate...

Page 97: ...te lighter in with your hand while it is heating If you do it won t be able to back away from the heating element when it s ready That can make it overheat damaging the lighter and heating element To...

Page 98: ...negative black outlets They have a 20 amp fuse that is common with the cigarette lighter Don t use the cigarette lighter when you re using a power jack because it may overload the circuit and blow th...

Page 99: ...e cable that will go to the trailer to supply electrical power to the trailer s lighting system When not in use it is stored in the trailer air hose storage bracket NOTICE Starting in 1998 the center...

Page 100: ...2 56 The Instrument Panel Your Information System...

Page 101: ...er E Warning Lights F Heated Mirror Switch If Equipped G Diesel Engine Exhaust Brake Switch H Marker Clearance Lamps Switch If Equipped I Audio System or Storage Area J Glove Box K Hourmeter If Equipp...

Page 102: ...n Diesel Engine Similar Your instrument panel cluster is designed to let you know at a glance how your vehicle is running You ll know how fast you re going about how much fuel is left and many other t...

Page 103: ...l of the old odometer then it must be But if it can t then it s set at zero and a label must be put on the driver s door to show the old mileage reading when the new odometer was installed Engine Spee...

Page 104: ...aying attention to your warning lights and gages could also save you or others from injury Warning lights come on when there may be or is a problem with one of your vehicle s functions As you will see...

Page 105: ...rned to ON or START a tone will sound for about eight seconds to remind people to fasten their safety belts Charging System Indicator Light CAUTION If your vehicle has an electric hydraulic parking br...

Page 106: ...ition is normal since the charging system may not be able to provide full power at engine idle As engine speeds are increased this condition should correct itself because higher engine speeds allow th...

Page 107: ...ice If you can t go in for service immediately have the vehicle towed Range Inhibited Warning Light If Equipped If your vehicle is equipped with an automatic transmission this light could turn on indi...

Page 108: ...warning light comes on it means that there is something wrong in the auxiliary brake system When this light comes on you will also hear a warning tone Both of these lights should come on briefly every...

Page 109: ...o come on and stay on when brake reservoir pressure has dropped below 60 to 70 psi 410 to 480 kPa When this warning light comes on you will also hear a warning tone If the warning light and tone come...

Page 110: ...ing tone Leaving the vehicle in this condition could result in your vehicle moving and will discharge the battery Parking Brake Warning Light This light turns on as a check when the engine is first st...

Page 111: ...d apply the parking brake immediately Parking Brake Indicator Light Vehicles with hydraulic or air brakes have a brake indicator light When the ignition is on this light will come on when you set your...

Page 112: ...arning light is on you don t have anti lock brakes and there s a problem with your regular brakes See Brake System Warning Light earlier in this section The anti lock brake system warning light should...

Page 113: ...rpillarR Operation Maintenance Manual Low Coolant Warning Light You have a LOW COOLANT warning light If this light comes on your system is low on coolant and the engine may overheat The warning light...

Page 114: ...e manual FAST IDLE feature is engaged For more details about this system see Fast Idle System in the Index Intake Heater Indicator Light Diesel Engines This light on the instrument panel cluster will...

Page 115: ...ator Lamp Check Engine Light If your vehicle is equipped with either a gasoline engine or an electronically controlled diesel engine you will have this light If this light comes on or flashes while yo...

Page 116: ...ad to costly repairs that may not be covered by your warranty Engine Oil Pressure Gage Gasoline Engine Diesel Engine The engine oil pressure gage on the lower right portion of your instrument panel cl...

Page 117: ...il as soon as possible and have your vehicle serviced NOTICE Damage to your engine from neglected oil problems can be costly and is not covered by your warranty Change Oil Light If Equipped The CHANGE...

Page 118: ...riven at a reduced speed while the REDUCED ENGINE POWER light is on but acceleration and speed may be reduced Anytime the CHECK ENGINE light stays on the vehicle should be taken to an authorized GM de...

Page 119: ...ck into the cause One possible cause is a low oil level in the transmission NOTICE If you drive when the transmission temperature gage is in the warning zone you can badly damage the transmission Dayt...

Page 120: ...l also hear a warning tone The tone and the light will stay activated until the problem is corrected This light may also come on if your vehicle is equipped with the optional automatic engine shutdown...

Page 121: ...ss fuel to fill up than the gage indicated If you have a diesel engine also see your CaterpillarR Operation Maintenance Manual Air Pressure Gage If Equipped If your vehicle has air brakes this gage at...

Page 122: ...vacuum on the scale the filter should be replaced After replacing the filter reset the gage by pressing in the yellow reset pin at the bottom of the gage If you have a diesel engine also see your Cat...

Page 123: ...bout the particular systems supplied with your vehicle 3 2 Comfort Controls 3 5 Air Conditioning 3 5 Heating 3 6 Defogging 3 6 Ventilation System 3 7 Audio Systems 3 7 Setting the Clock 3 8 AM FM Ster...

Page 124: ...setting operates the defogger Heated air comes out near the windshield Use this when fog or ice is on the windshield Temperature Lever The bottom lever lets you select the temperature of the air flowi...

Page 125: ...or Bar The bar under your system display lets you select the temperature of the air coming into the passenger area of your vehicle Press COLD for cooler air and press HOT for warmer air Release the ba...

Page 126: ...the button again DEFOG This setting operates the defogger Air comes out near the bottom of the windshield and at your front side windows HEATER Press the bottom of this button and heated air comes ou...

Page 127: ...ir conditioner develops high system pressure it will automatically go into the MAX mode and REC will light on your display The A C system will remain in the MAX mode even if you press the MAX button u...

Page 128: ...gh the air intake using the blower fan Fresh air can be drawn in when the vehicle is stationary or moving at low speed Air comes in through four vents in the instrument panel and is exhausted through...

Page 129: ...ct the flow of air or close the vents altogether When you close a vent it will increase the flow of air coming out of any vents that are open If your vehicle does not have air conditioning there are a...

Page 130: ...ime press this button and the SET button Finding a Station AM FM Press this button to switch between AM and FM The display shows your selection TUNE Press UP to increase the frequency of a radio stati...

Page 131: ...he display and will blink 3 While pressing the SET button press the SEEK button Release both switches The radio will automatically search the band and select radio stations up to six which have good s...

Page 132: ...e the tape Press FF to stop reversing the tape FF Press the right arrow to rapidly advance the tape Press REW to stop forwarding the tape PROGRAM A lighted arrow will show which side of the tape is pl...

Page 133: ...lume slowly until you hear comfortably and clearly NOTICE Before you add any sound equipment to your vehicle like a tape player CB radio mobile telephone or two way radio be sure you can add what you...

Page 134: ...rn The recommended cleaning cassette is available through your dealer GM Part No 12344789 You may also choose a non scrubbing action wet type cleaner which uses a cassette with a fabric belt to clean...

Page 135: ...n driving 4 2 Defensive Driving 4 3 Drunken Driving 4 6 Control of a Vehicle 4 6 Braking 4 10 Steering 4 12 Off Road Recovery 4 13 Passing 4 14 Loss of Control 4 15 Driving at Night 4 17 Driving in Ra...

Page 136: ...ventable of accidents Yet they are common Allow enough following distance It s the best defensive driving maneuver in both city and rural driving You never know when the vehicle in front of you is goi...

Page 137: ...alcohol There are good medical psychological and developmental reasons for these laws The obvious way to solve the leading highway safety problem is for people never to drink alcohol and then drive Bu...

Page 138: ...e other countries it s even lower The BAC limit for all commercial drivers in the United States is 0 04 percent The BAC will be over 0 10 percent after three to six drinks in one hour Of course as we...

Page 139: ...in a person s system can make crash injuries worse especially injuries to the brain spinal cord or heart This means that when anyone who has been drinking driver or passenger is in a crash that perso...

Page 140: ...up your foot and do it That s reaction time Average reaction time is about 3 4 of a second But that s only an average It might be less with one driver and as long as two or three seconds or more with...

Page 141: ...er assist is used up it may take longer to stop and the brake pedal will be harder to push Hydraulic Brake Systems If your engine stops running or if your primary brake system stops working your vehic...

Page 142: ...ck itself You may hear a momentary motor or clicking noise while this test is going on This is normal If there s a problem with the anti lock brake system this warning light will stay on See Anti Lock...

Page 143: ...eeps receiving updates on wheel speed and controls braking pressure accordingly Remember Anti lock doesn t change the time you need to get your foot up to the brake pedal or always decrease stopping d...

Page 144: ...off the brake pedal This will help you retain steering control If you do have anti lock it s different See Anti Lock Brakes in the Index In many emergencies steering can help you more than even the ve...

Page 145: ...tain a reasonable steady speed Wait to accelerate until you are out of the curve and then accelerate gently into the straightaway Steering in Emergencies There are times when steering can be more effe...

Page 146: ...act that such emergency situations are always possible is a good reason to practice defensive driving at all times and wear safety belts properly Off Road Recovery You may find that your right wheels...

Page 147: ...etter time D Watch for traffic signs pavement markings and lines If you can see a sign up ahead that might indicate a turn or an intersection delay your pass A broken center line usually indicates it...

Page 148: ...ng to turn D If you re being passed make it easy for the following driver to get ahead of you Perhaps you can ease a little to the right Loss of Control Let s review what driving experts say about wha...

Page 149: ...to avoid sudden steering acceleration or braking including engine braking by shifting to a lower gear See Diesel Engine Exhaust Brake in the Index for information about using the exhaust brake on sli...

Page 150: ...but they also make a lot of things invisible You can be temporarily blinded by approaching headlamps It can take a second or two or even several seconds for your eyes to readjust to the dark When you...

Page 151: ...t wet suddenly when your reflexes are tuned for driving on dry pavement The heavier the rain the harder it is to see Even if your windshield wiper blades are in good shape a heavy rain can make it har...

Page 152: ...y to avoid puddles But if you can t try to slow down before you hit them CAUTION Wet brakes can cause accidents They won t work as well in a quick stop and may cause pulling to one side You could lose...

Page 153: ...oad If you can see reflections from trees telephone poles or other vehicles and raindrops dimple the water s surface there could be hydroplaning Hydroplaning usually happens at higher speeds There jus...

Page 154: ...warning signs and otherwise be very cautious about trying to drive through flowing water Some Other Rainy Weather Tips D Turn on your low beam headlamps and your marker and clearance lamps if your ve...

Page 155: ...ry trip D Larger vehicles can t be driven everywhere smaller ones can There are low underpasses truck routes and other special situations Usually these are well marked so be sure to watch for the sign...

Page 156: ...to blend with the flow Try to merge into the gap at close to the prevailing speed Switch on your turn signal check your mirrors and try to blend smoothly with the traffic flow Once you are on the free...

Page 157: ...road with the same scenery along with the hum of the tires on the road the drone of the engine and the rush of the wind against the vehicle that can make you sleepy Don t let it happen to you If it do...

Page 158: ...tem and transmission These parts can work hard on mountain roads D Know how to go down hills The most important thing to know is this let your engine do some of the slowing down Shift to a lower gear...

Page 159: ...p cool your engine and transmission and you can climb the hill better D Stay in your own lane when driving on two lane roads in hills or mountains Don t swing wide or cut across the center of the road...

Page 160: ...ce scraper a small brush or broom a supply of windshield washer fluid a rag some winter outer clothing a small shovel a flashlight a red cloth and reflective warning triangles And if you will be drivi...

Page 161: ...here Whatever the condition smooth ice packed blowing or loose snow drive with caution Accelerate gently Try not to break the fragile traction If you accelerate too fast the drive wheels will spin and...

Page 162: ...mon help and keep yourself and your passengers safe D Turn on your hazard flashers D Tie a red cloth to your mirror arm to alert police that you ve been stopped by the snow D Put on extra clothing or...

Page 163: ...it go a little faster than just idle That is push the accelerator slightly This uses less fuel for the heat that you get and it keeps the battery or batteries charged You will need a well charged bat...

Page 164: ...ertification Tire label is provided by the final manufacturer and should be on the door or door jamb It also tells you the maximum weights for the front and rear axles called Gross Axle Weight Rating...

Page 165: ...ts or components that fail because of overloading If you put things inside your vehicle like suitcases tools packages or anything else they will go as fast as the vehicle goes If you have to stop or t...

Page 166: ...e of 1 700 rpm SET COAST has a base engine idle of 1 400 rpm C Without optional cruise control PTO UP has a base engine idle of 1 700 rpm PTO DOWN has a base engine idle of 1 400 rpm To engage a PTO w...

Page 167: ...ds the engine speed selected by the accelerator pedal B With the optional cruise control RESUME ACCEL increases engine speed by 25 rpm SET COAST decreases engine speed by 25 rpm C Without the optional...

Page 168: ...5 2 Hazard Warning Flashers 5 4 Other Warning Devices 5 5 Jump Starting 5 10 Towing Your Vehicle 5 18 Engine Overheating 5 20 Cooling System Gasoline Engines 5 27 Cooling System Diesel Engine 5 33 En...

Page 169: ...n and off The hazard flasher switch is located on the steering column Press the button in to make your front and rear turn signal lamps flash on and off Your hazard warning flashers work no matter wha...

Page 170: ...panel usually to the left of and below the steering column Pull the switch out to make your front and rear turn signal lamps flash on and off A light next to the switch will also flash Push it back i...

Page 171: ...n the hazard lever until it locks into place It works no matter what position your key is in and even if the key isn t in To turn off the flasher move the turn signal lever either up or down Then move...

Page 172: ...tricity to burn you If you don t follow these steps exactly some or all of these things can hurt you NOTICE Ignoring these steps could result in costly damage to your vehicle that wouldn t be covered...

Page 173: ...electrical systems 3 Turn off the ignition on both vehicles Turn off all lamps that aren t needed as well as radios This will avoid sparks and help save both batteries and it could save your radio 4 L...

Page 174: ...d metal engine part or some other well grounded part Don t connect positive to negative or you ll get a short that would damage the battery and maybe other parts too CAUTION Fans or other moving engin...

Page 175: ...e vehicle with the dead battery 9 Attach the cable at least 18 inches 45 cm away from the dead battery but not near engine parts that move The electrical connection is just as good there but the chanc...

Page 176: ...1 Disconnect the black negative cable from the heavy unpainted metal engine part on the vehicle that had the dead battery 2 Disconnect the black negative cable from the negative terminal on the vehic...

Page 177: ...en towing it D Working on air brakes without first using the release studs to compress the springs can lead to injury Never work on the air brakes chambers without first using the release studs to com...

Page 178: ...them Here are specific towing instructions Towing Your Vehicle From the Front Front Wheels Off the Ground Before Towing Block the rear wheels of the disabled vehicle On vehicles with air brakes relea...

Page 179: ...ft Chain C Front Axle 3 Place a 6 x 6 x 5i hardwood beam underneath and slightly behind the front spring shackle brackets 4 Connect lift chains to the tow bar and raise the tow bar until lift chain sl...

Page 180: ...eath and slightly behind the front spring shackle brackets as previously shown 3 Connect the lift chains to the tow bar and take up the slack in the chains until the tow bar is within 4 of the front b...

Page 181: ...the ground Remove the rearward propshaft Tandem Drive Rear Axle Both Axles on the Ground Due to Type of Suspension or Attached Load Disconnect the propshaft at the forward tandem axle Secure the prop...

Page 182: ...onnect the propshaft at the rear axle forward axle on tandem axle models Secure the propshaft to the frame or crossmember If there is damage or suspected damage to the axle s remove the axle shafts Co...

Page 183: ...sure from both systems the parking brakes will have automatically engaged The tow operator can release the brakes manually by using the following steps Then your vehicle can be towed with all wheels o...

Page 184: ...wise several turns to release the brakes Follow the same procedure to release the other brake 7 At the repair facility apply air pressure of at least 70 psi 480 kPa to the brake chambers either from a...

Page 185: ...ngine if you see or hear steam coming from it Just turn it off and get everyone away from the vehicle until it cools down Wait until there is no sign of steam or coolant before you open the hood If yo...

Page 186: ...shift to NEUTRAL N otherwise shift to the highest gear while driving DRIVE D for automatic transmissions 4 If climbing a hill downshift to raise engine and fan speeds If you no longer have the overhea...

Page 187: ...s what you ll see Specialty Hood A Coolant Recovery Tank B Radiator Pressure Cap C Engine Fan Sloped Hood A Coolant Recovery Tank B Engine Fan C Radiator Pressure Cap If the coolant inside the coolan...

Page 188: ...ses radiator water pump or somewhere else in the cooling system CAUTION Heater and radiator hoses and other engine parts can be very hot Don t touch them If you do you can be burned Don t run the engi...

Page 189: ...y If there seems to be no leak start the engine again See if the engine cooling fan speed increases when idle speed is doubled by pushing the accelerator pedal down If it doesn t your vehicle needs se...

Page 190: ...t get the overheat warning Your engine could catch fire and you or others could be burned Use a 50 50 mixture of clean drinkable water and DEX COOLR coolant NOTICE In cold weather water can freeze an...

Page 191: ...oolant mixture directly to the radiator but be sure the cooling system is cool before you do it CAUTION Steam and scalding liquids from a hot cooling system can blow out and burn you badly They are un...

Page 192: ...ntil it first stops Don t press down while turning the pressure cap If you hear a hiss wait for that to stop A hiss means there is still some pressure left 2 Then keep turning the pressure cap but now...

Page 193: ...n feel the upper radiator hose getting hot Watch out for the engine cooling fan s 7 By this time the coolant level inside the radiator filler neck may be lower If the level is lower add more of the pr...

Page 194: ...at COLD ADD or higher If it isn t you may have a leak in the radiator hoses heater hoses radiator water pump or somewhere else in the cooling system CaterpillarR Diesel Engine CAUTION Heater and radi...

Page 195: ...nkable water and coolant at the coolant surge tank but be sure the cooling system including the coolant surge tank pressure cap is cool before you do it See the CaterpillarR Diesel Engine Operation Ma...

Page 196: ...ystem is set for the proper coolant mixture With plain water or the wrong mixture your engine could get too hot but you wouldn t get the overheat warning Your engine could catch fire and you or others...

Page 197: ...a hot engine 1 You can remove the coolant surge tank pressure cap when the cooling system including the coolant surge tank pressure cap and upper radiator hose is no longer hot Turn the pressure cap s...

Page 198: ...5 31 2 Then keep turning the cap but now push down as you turn it Remove the pressure cap 3 Then fill the coolant surge tank with the proper coolant mixture up to the COLD FULL mark...

Page 199: ...getting hot Watch out for the engine fan By this time the coolant level inside the coolant surge tank may be lower If the level is lower add more of the proper mixture to the coolant surge tank until...

Page 200: ...out while you re driving especially if you maintain your tires properly If air goes out of a tire it s much more likely to leak out slowly But if you should ever have a blowout here are a few tips abo...

Page 201: ...was quite low on air the tire can have a sudden air out This could cause you to lose control of the vehicle and have a serious crash Don t refill a flat or very low tire with air without first having...

Page 202: ...parts of your vehicle as well as the tires If you spin the wheels too fast while shifting your transmission back and forth you can destroy your transmission Rocking Your Vehicle To Get It Out First tu...

Page 203: ...CaterpillarR Diesel Engines 6 18 Engine Air Cleaner Filter 6 19 Automatic Transmission Fluid 6 20 Manual Transmission Fluid 6 21 Rear Axle 6 21 Rear Axle Shift Motor Option 6 22 Engine Coolant Gasolin...

Page 204: ...vice manual It tells you much more about how to service your vehicle than this manual can To order the proper service manual see Service and Owner Publications in the Index You should keep a record wi...

Page 205: ...service technician who is nearby And of course the pieces can severely damage the vehicle Don t change the fan drive ratio or increase the governed speed of the vehicle without getting the necessary...

Page 206: ...fication could provide improved driveability and emission control system performance compared to other gasolines In Canada look for the Auto Makers Choice label on the fuel pump Canada Only Be sure th...

Page 207: ...ll help prevent deposits from forming in your engine and fuel system allowing your emission control system to function properly Therefore you should not have to add anything to the fuel In addition ga...

Page 208: ...and smoking materials away from the mixture NOTICE If there is water in your diesel fuel and the weather is warm or humid fungus and bacteria can grow in the fuel They can damage your fuel system You...

Page 209: ...by use of improper fuel wouldn t be covered by your warranty To check on fuel availability ask an auto club or contact a major oil company that does business in the country where you ll be driving Fi...

Page 210: ...full and is more likely in hot weather Open the fuel filler cap slowly and wait for any hiss noise to stop Then unscrew the cap all the way When you put the cap back on turn it to the right clockwise...

Page 211: ...rs D Do not fill a container while it is inside a vehicle in a vehicle s trunk pickup bed or on any surface other than the ground D Bring the fill nozzle in contact with the inside of the fill opening...

Page 212: ...6 10 Then take the hand holds and pull the hood forward When you tilt the hood far enough the cables will support it...

Page 213: ...he prop rod located on the panel where the arrow is pointing CAUTION Things that burn can get on hot engine parts and start a fire These include liquids like fuel oil coolant brake fluid windshield wa...

Page 214: ...ir or replacement of any device or element of design incorporated into any new vehicle for the purpose of noise control prior to its sale or delivery to the ultimate purchaser or while it is in use or...

Page 215: ...ck your engine oil every time you get fuel In order to get an accurate reading the oil must be warm and the vehicle must be on level ground The engine oil dipstick is located on the driver s side of t...

Page 216: ...in the proper operating range Push the dipstick all the way back in when you re through What Kind of Engine Oil to Use Oils recommended for your vehicle can be identified by looking for the starburst...

Page 217: ...l with the American Petroleum Institute Certified For Gasoline Engines starburst symbol Failure to use the recommended oil can result in engine damage not covered by your warranty GM GoodwrenchR oil m...

Page 218: ...er occurs first without an oil change The system won t detect dust in the oil So if you drive in a dusty area be sure to change your oil and filter every 3 000 miles 5 000 km or sooner Remember to res...

Page 219: ...er for help Engine Oil CaterpillarR Diesel Engines See your CaterpillarR Operation Maintenance Manual for information on oil quality and viscosities as well as the temperature range chart Air Filter R...

Page 220: ...the air cleaner on the passenger s side of the engine When the yellow indicator reaches the red ring in the sight glass it s time to service the air filter After the air filter is properly serviced th...

Page 221: ...ur vehicle may also be equipped with an optional Filter Minder gage See Warning Lights Gages and Indicators in the Index Automatic Transmission Fluid When to Check A good time to have it checked is wh...

Page 222: ...t when the SERVICE TRANS FILTER indicator light on the instrument panel comes on or every three years whichever occurs first Manual Transmission Fluid When to Check A good time to have it checked is w...

Page 223: ...what kind of lubricant to use See Recommended Fluids and Lubricants in the Maintenance Schedule Rear Axle Shift Motor Option When to Check and Change Fluid If you have an optional air shift two speed...

Page 224: ...nd DEX COOLR coolant will D Give freezing protection down to 34_F 37_C D Give boiling protection up to 252_F 122_C D Protect against rust and corrosion D Help keep the proper engine temperature D Let...

Page 225: ...ngine could get too hot but you wouldn t get the overheat warning Your engine could catch fire and you or others could be burned Use a 50 50 mixture of clean drinkable water and DEX COOLR coolant NOTI...

Page 226: ...6 24 Checking Coolant Coolant Recovery Tank Gasoline Engines Specialty Hood Coolant Recovery Tank Gasoline Engines Sloped Hood...

Page 227: ...D level or a little higher on the coolant recovery tank with the gasoline engine or at the COLD FULL mark visible through the surge tank with the diesel engine If this light comes on and stays on it m...

Page 228: ...ixture at the recovery tank or the surge tank but be careful not to spill it CAUTION You can be burned if you spill coolant on hot engine parts Coolant contains ethylene glycol and it will burn if the...

Page 229: ...oolant loss and possible engine damage from overheating Be sure the arrows on the cap line up with the top of the overflow tube Surge Tank Pressure Cap Diesel Engines The surge tank pressure cap must...

Page 230: ...ermine what kind of fluid to use see Recommended Fluids and Lubricants in the Index NOTICE When adding power steering fluid or making a complete fluid change always use the proper fluid Failure to use...

Page 231: ...NOTICE D When using concentrated washer fluid follow the manufacturer s instructions for adding water D Don t mix water with ready to use washer fluid Water can cause the solution to freeze and damag...

Page 232: ...fluid Brake fluid could spill on the hot engine and it can catch fire You could be burned and your vehicle could be damaged See Checking Brake Fluid in this section Checking Brake Fluid Apply the brak...

Page 233: ...is could cause a crash Always use the proper brake fluid NOTICE D Using the wrong fluid can badly damage brake system parts For example just a few drops of mineral based oil such as engine oil in your...

Page 234: ...apid increase in pedal travel This could be a sign of brake trouble Brake Adjustment Every time you make a brake stop your brakes adjust for wear Replacing Brake System Parts The braking system on a v...

Page 235: ...ull pressure check your air pressure gage It should read at least 100 psi 692 kPa Moisture Ejector Option If you have air brakes with a moisture ejector the valve automatically ejects moisture from th...

Page 236: ...transmission fluid GM Part Number 12345881 How to Check and Add Fluid First apply the parking brake To check the fluid level look at the MAX and MIN lines on the side of the reservoir If the level is...

Page 237: ...ree travel Your Maintenance Schedule has more on this If your clutch ever needs service be sure to use only genuine GM clutch replacement parts Chassis Lubrication Your Maintenance Schedule provides a...

Page 238: ...6 36 Single Axle Models...

Page 239: ...nd Hinges Apply chassis lubricant 6 Slack Adjuster n One fitting 7 Brake Cam Roller Pins at interface of pin and shoe n Apply engine oil 8 Front Steering Knuckles One fitting each side lower bushing h...

Page 240: ...with GM Part No 1051344 Wheel Bearing Lubricant Two fittings each joint 1610 Series and larger lubricate with GM Part No 1051344 Wheel Bearing Lubricant 19 Rear Wheel Bearing Hand pack or lubricate 2...

Page 241: ...icate with GM Part No 1051344 Wheel Bearing Lubricant 4 Brake Shoe Roller Pins Apply engine oil at pin to shoe joint only 5 Rear Spring Pin One fitting each side 6 Wheel Bearings Hand pack or lubricat...

Page 242: ...u re not going to drive your vehicle for 25 days or more remove the black negative cable from the battery This will help keep your battery from running down If your vehicle has more than one battery b...

Page 243: ...he Index for more information Replacement blades come in different types and are removed in different ways Here s how to remove the Sheppard s Hook type 1 Pull the windshield wiper arm away from the w...

Page 244: ...m bolts on top and the single 8 mm bolt at the top front Then pull the cover toward you and lift it off You can then remove the front cover if you need to by removing the two 8 mm bolts and pulling it...

Page 245: ...y open the drain valve at the bottom of the filter See Engine Oil in the Index for proper disposal procedures Secondary Fuel Filter and Water Separator Heater Option If you have a CaterpillarR diesel...

Page 246: ...the cylinder and the top of the valve before you take out the cylinder 4 Check the inside of the valve for any foreign matter Clean the valve as necessary 5 Cover the valve to protect it from dirt an...

Page 247: ...ou ll see on the glass Refer to your Maintenance Schedule for the proper oil to use When you fill the hub check the glass again after driving a short distance It takes a while for the oil to flow thro...

Page 248: ...serious accident See Loading Your Vehicle in the Index CAUTION Continued CAUTION Continued D Underinflated tires pose the same danger as overloaded tires The resulting accident could cause serious inj...

Page 249: ...overloading D Bad wear D Bad handling D Bad fuel economy NOTICE Continued NOTICE Continued If your tires have too much air overinflation you can get the following D Unusual wear D Bad handling D Rough...

Page 250: ...dual wheel setup generally wears faster than the inner tire Your tires will wear more evenly and last longer if you rotate the tires periodically If you re going to be doing a lot of driving on high c...

Page 251: ...e radial and bias belted tires the vehicle may not handle properly and you could have a crash Be sure to use the same type of tires all around When you replace tires make sure they are the same size l...

Page 252: ...tion to be sure they are This section lets you know how often to check the tightness of the wheel nuts on your vehicle and how tight they must be First use these pictures to decide what kind of wheels...

Page 253: ...er rear tire and rim assembly so that its valve stem is exactly opposite the valve stem on the inner tire and rim assembly 3 Put on the wheel nuts 4 Finger tighten the nuts 5 Oil the surfaces between...

Page 254: ...rted in any way Inspect hubs and hub piloted wheels for damage Because of loose running wheels piloting pad damage may occur and require replacement of the entire hub for proper centering of the wheel...

Page 255: ...be leaking because it is damaged Don t use an inner tube or some other thing to try to stop the leaking Get a new wheel of the proper type CAUTION Without the correct wheel you may not be able to stop...

Page 256: ...GM original equipment wheel Appearance Care Remember cleaning products can be hazardous Some are toxic Others can burst into flame if you strike a match or get them on a hot part of the vehicle Some...

Page 257: ...ad the instructions on the cleaner label D Clean up stains as soon as you can before they set D Carefully scrape off any excess stain D Use a clean cloth or sponge and change to a clean area often A s...

Page 258: ...rst clean with cool water and allow to dry completely 3 If a stain remains follow instructions for Multi Purpose Interior Cleaner Cleaning Vinyl Use warm water and a clean cloth D Rub with a clean dam...

Page 259: ...window since they may have to be scraped off later Cleaning the Outside of the Windshield and Wiper Blades If the windshield is not clear after using the windshield washer or if the wiper blade chatte...

Page 260: ...ance Care and Materials in the Index Don t use cleaning agents that are petroleum based or that contain acid or abrasives All cleaning agents should be flushed promptly and not allowed to dry on the s...

Page 261: ...ou may use chrome polish on chrome or stainless steel trim if necessary Use special care with aluminum trim To avoid damaging protective trim never use auto or chrome polish steam or caustic soap to c...

Page 262: ...ody repair shop applies anti corrosion material to the parts repaired or replaced to restore corrosion protection Original manufacturer replacement parts will provide the corrosion protection while ma...

Page 263: ...parts such as fuel lines frame floor pan and exhaust system even though they have corrosion protection At least every spring flush these materials from the underbody with plain water Clean any areas...

Page 264: ...plastic rubber and vinyl 1052925 16 oz 0 473 L Multi Purpose Interior Cleaner Cleans carpets seats interior trim door panels and floor mats 1052929 16 oz 0 473 L Wheel Cleaner Spray on and rinse with...

Page 265: ...ts is on your Certification Tire label Here is what each one means TRUCK SERVICE A vehicle made to carry property or special equipment It is made for uniform frame loading That includes using the vehi...

Page 266: ...a list of all production options and special equipment Be sure that this label is not removed from the vehicle Electrical System Add On Electrical Equipment NOTICE Don t add anything electrical to yo...

Page 267: ...ble link with one of the same size and insulation type Fusible link insulation is a special purpose high temperature material The hydraulic brake booster motor feed circuit and starter relay circuit a...

Page 268: ...If you ever have a problem on the road and don t have a spare circuit breaker you can borrow one of the correct value Just pick some feature of your vehicle that you can get along without like the rad...

Page 269: ...atbelt Module BLOWER Blower Motor A C A C Clutch Compressor A C Controller A C Clutch Relay TRN HAZ Turn Signal Lamps Hazard Lamps Name Circuits Protected CHAS Air Suspension Dump Valve Air Dryer HYD...

Page 270: ...SW Instrument Panel Cluster Telltales Daytime Running Lamp Module Daytime Running Lamp Relay Alarm Module Ignition 1 Relay Vehicle Interface Module Diesel Engines Parking Brake Module Transmission Rel...

Page 271: ...oline Engines BLOWER Blower Motor A C A C Clutch Compressor A C Controller A C Clutch Relay Name Circuits Protected TRN HAZ Turn Signal Lamps Hazard Lamps CHAS Exhaust Brake Air Suspension Dump Valve...

Page 272: ...ime Running Lamp Module Daytime Running Lamp Relay Alarm Module Ignition 1 Relay AUX I Auxiliary Wiring Ignition RDO Radio Auxiliary Wiring DR LK Power Door Locks Maxi Fuse Block When a circuit goes o...

Page 273: ...h maxi fuses of the same rating Do not use maxi fuses of higher amperage than those indicated on the maxi fuse block Vehicles with Hydraulic Brakes Vehicles with Air Brakes Name Circuits Circuit Break...

Page 274: ...t is recommended that you use an ACR type bulb whenever you need to replace one Before you replace any bulbs be sure that all lamps are off and the engine isn t running Capacities and Specifications R...

Page 275: ...6 1 Additional oil is required with auxiliary oil filter systems Make sure to add enough extra oil to fill the auxiliary oil filter system For vehicles equipped with the LUBERFINER 750 C add 14 quart...

Page 276: ...18 4 8 7 FS6406 18 4 8 7 FS8406 18 5 8 8 RT8908LL 29 1 13 8 Automatic Transmission Pints Liters AT545 for oil pan filter change 40 0 19 0 MT643 for oil pan filter change 13 0 24 5 MT653 for oil pan fi...

Page 277: ...0 13 0 DT402P front 35 0 16 5 RT402 rear 36 0 17 0 Above capacities volumes are approximate Air Conditioning Refrigerant Capacity Refrigerant See Underhood Label Normal Maintenance Replacement Parts...

Page 278: ...54 Air Cleaner Donaldson P522606 ACDelcoR A1518C Fuel Filter ACDelcoR 915 Primary ACDelcoR GF626 Secondary Fuel Filter CATR 1R0751 Pressure Caps RC 54 GM Part No 15997145 Optional Davco K28 D350921 sp...

Page 279: ...cle Your vehicle needs these services to retain its safety dependability and emission control performance 7 2 Introduction 7 4 Part A Scheduled Maintenance Services 7 5 Scheduled Maintenance 7 25 Part...

Page 280: ...t Improper vehicle maintenance can even affect the quality of the air we breathe Improper fluid levels or the wrong tire inflation can increase the level of emissions from your vehicle To help protect...

Page 281: ...ls and equipment for the job If you have any doubt have a qualified technician do the work If you want to get the service information see Service and Owner Publications in the Index Part B Owner Check...

Page 282: ...needs you ll know that GM trained and supported service people will perform the work using genuine GM parts The proper fluids and lubricants to use are listed in Part C Make sure whoever services your...

Page 283: ...dule further explain maintenance services See Scheduled Maintenance Supplements earlier in this section 1 000 Miles 1 600 km j Wheel stud nut service 46 3 000 Miles 5 000 km j Check Oil Life Monitor I...

Page 284: ...ichever occurs first 12 j Lubricate door hinge pins and rollers with engine oil j Wheels and tires service 15 46 j Hydraulic brake service or every 6 months whichever occurs first 7 j Hydraulic parkin...

Page 285: ...or every 6 months whichever occurs first 22 j Hydraulic parking brake service or every 6 months whichever occurs first 8 j Clutch pedal free travel service 10 j Clean air brake application valve or ev...

Page 286: ...amber service or every 2 months whichever occurs first 41 j Trailer brake hand control valve service or every 3 months or 900 hours whichever occurs first 42 27 000 Miles 45 000 km j Check Oil Life Mo...

Page 287: ...ck fluid levels or every 3 months whichever occurs first 1 2 6 j Chassis lubrication service or every 6 months whichever occurs first 12 j Inspect door hinge pins and bushings and replace as necessary...

Page 288: ...raulic parking brake service or every 6 months whichever occurs first 8 j Clutch pedal free travel service 10 45 000 Miles 75 000 km j Check Oil Life Monitor If engine oil and filter are changed reset...

Page 289: ...irst 3 26 j Rear axle air shift motor service 11 j Check air brake relay valve operation and check for leaks or every month or every 300 hours whichever occurs first j Air brake chamber service or eve...

Page 290: ...ck fluid levels or every 3 months whichever occurs first 1 2 6 60 000 Miles 100 000 km j Check Oil Life Monitor If engine oil and filter are changed reset monitor See Engine Oil in the Index 3 9 j Che...

Page 291: ...filter are changed reset monitor See Engine Oil in the Index 3 9 j Check fluid levels or every 3 months whichever occurs first 1 2 6 66 000 Miles 110 000 km j Check Oil Life Monitor If engine oil and...

Page 292: ...ts service or every 12 months whichever occurs first 18 j Clutch pedal free travel service 10 j Thermostatically controlled engine cooling fan service 4 20 j Shields and underhood insulation service 4...

Page 293: ...r every 6 months whichever occurs first 12 j Lubricate door hinge pins and rollers with engine oil j Wheels and tires service 15 46 j Hydraulic brake service or every 6 months whichever occurs first 7...

Page 294: ...or See Engine Oil in the Index 3 9 j Check fluid levels or every 3 months whichever occurs first 1 2 6 90 000 Miles 150 000 km j Check Oil Life Monitor If engine oil and filter are changed reset monit...

Page 295: ...ls or every 3 months whichever occurs first 1 2 6 96 000 Miles 160 000 km j Check Oil Life Monitor If engine oil and filter are changed reset monitor See Engine Oil in the Index 3 9 j Check fluid leve...

Page 296: ...Monitor If engine oil and filter are changed reset monitor See Engine Oil in the Index 3 9 j Check fluid levels or every 3 months whichever occurs first 1 2 6 100 000 Miles 166 000 km j Change power...

Page 297: ...that the failure to perform this maintenance item will not nullify the emission warranty or limit recall liability prior to the completion of the vehicle s useful life We however urge that all recomme...

Page 298: ...e indicator may come on before 3 000 miles 5 000 km Never drive your vehicle more than 7 500 miles 12 500 km or 12 months without an oil and filter change The system won t detect dust in the oil So if...

Page 299: ...g upper cover and side cover attaching bolts steering column mounting bolts and cardan joint clamp bolts tighten if necessary See service manual D Inspect power steering hoses tubes and fittings for l...

Page 300: ...removed See Recommended Fluids and Lubricants in the Index D Oil filled type Some wheel bearings are lubricated by rear axle lubricant When you have oil filled hubs use lubricant identical to that use...

Page 301: ...anual for coolant recommendations and change intervals 37 Rear axle service Change the lubricant See Recommended Fluids and Lubricants in the Index 38 Front axle service Re pack upper kingpin roller b...

Page 302: ...ts showing wear Remove disassemble clean and inspect the spring brake control valve replace rubber parts 46 Tighten the wheel stud nuts to the specified torque values at 1 000 miles 1 600 km Thereafte...

Page 303: ...hicle At Each Fuel Fill It is important for you or a service station attendant to perform these underhood checks at each fuel fill Engine Oil Level Check Check the engine oil level and add the proper...

Page 304: ...ion Silicone grease on weatherstrips will make them last longer seal better and not stick or squeak Apply silicone grease with a clean cloth During very cold damp weather more frequent application may...

Page 305: ...our vehicle needs service Automatic Transmission Shift Indicator Check Check that the indicator points to the gear chosen Steering Check Be alert for any changes in steering action abnormal front tire...

Page 306: ...ve the control to the defrost symbol and the fan to HI or the high symbol Then check the airflow from the ducts at the inside base of the windshield Mirrors and Sun Visors Check Check that friction jo...

Page 307: ...occur on underbody parts such as fuel lines frame floor pan and exhaust system At least every spring flush these materials from the underbody with plain water Take care to clean well any areas where m...

Page 308: ...Operation Maintenance Manual for engine oil recommendations USAGE FLUID LUBRICANT Engine Coolant GM Gasoline Engine 50 50 mixture of clean drinkable water and use only GM GoodwrenchR DEX COOLR or Hav...

Page 309: ...Steering Fluid GM Part No 1052884 1 pint 1050017 1 quart or equivalent USAGE FLUID LUBRICANT Manual Transmission Synthetic Manual Transmission Fluid GM Part No 12345724 is the recommended lubricant t...

Page 310: ...otor Lubricant Refrigerant Oil GM Part No 5416939 USAGE FLUID LUBRICANT Propshafts and Splines Wheel bearing lubricant meeting requirements of NLGI 2 Category GC or GC LB GM Part No 1051344 or equival...

Page 311: ...e maintenance record charts provided here Any additional information from Owner Checks and Services can be added on the following record pages Also you should retain all maintenance receipts Your owne...

Page 312: ...7 34 Maintenance Record DATE ODOMETER READING SERVICED BY MAINTENANCE PERFORMED...

Page 313: ...7 35 Maintenance Record DATE ODOMETER READING SERVICED BY MAINTENANCE PERFORMED...

Page 314: ...7 36 Maintenance Record DATE ODOMETER READING SERVICED BY MAINTENANCE PERFORMED...

Page 315: ...the above address for quotation 2001 120 00 2001 50 00 2001 20 00 2001 15 00 TOTAL MATERIAL Michigan Purchasers U S Order Processing 6 00 Canadian Postage GRAND TOTAL add 6 sales tax GM CHE ORD99 Pric...

Page 316: ...ns and how to report any safety defects 8 2 Customer Satisfaction Procedure 8 3 Customer Assistance for Text Telephone TTY Users 8 3 Customer Assistance Offices 8 5 Roadside Assistance 8 5 Warranty In...

Page 317: ...NE Discuss your concern with a member of dealership management Normally concerns can be quickly resolved at that level If the matter has already been reviewed with the sales service or parts manager c...

Page 318: ...TTY Users To assist customers who are deaf hard of hearing or speech impaired and who use Text Telephones TTYs GMC has TTY equipment available at its Customer Assistance Center Any TTY user can commun...

Page 319: ...ench 1 800 263 3830 For Text Telephone devices TTYs Roadside Assistance 1 800 268 6800 Mexico Central America and Caribbean Islands Countries Except Puerto Rico and U S Virgin Islands General Motors d...

Page 320: ...vices can also be arranged for situations such as retrieving locked in keys changing a tire or delivering gasoline at a charge to the owner We also provide dealer information at no charge such as loca...

Page 321: ...not become involved in individual problems between you your dealer or General Motors To contact NHTSA you may either call the Auto Safety Hotline toll free at 1 800 424 9393 or 366 0123 in the Washing...

Page 322: ...ify us Please call us at 1 800 GMC 8782 1 800 462 8782 or write GMC Medium Duty Truck Customer Assistance Center P O Box 33172 Detroit MI 48232 5172 In Canada please call us at 1 800 263 3777 English...

Page 323: ...information needed to knowledgeably service General Motors cars and trucks Each bulletin contains instructions to assist in the diagnosis and service of your vehicle OWNER S INFORMATION Owner publica...

Page 324: ...the above address for quotation 2001 120 00 2001 50 00 2001 20 00 2001 15 00 TOTAL MATERIAL Michigan Purchasers U S Order Processing 6 00 Canadian Postage GRAND TOTAL add 6 sales tax GM GMC ORD99 Pric...

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