![background image](http://html1.mh-extra.com/html/gmc/1989-light-duty-truck/1989-light-duty-truck_repair-manual_2235153743.webp)
700-R4 AUTOMATIC TRANSMISSION 7A1-47
*
Porosity
Cracks
Interconnected Oil Passages
Dam aged M achined Surfaces
Assemble (Figures 113,114)
•
Control valve assembly (67) exactly as shown.
N otice the position o f the valve lands and bushing
passages.
|-»4-| Install or Connect (Figures 115,117)
1.
Three checkballs (5 5A ), (55C) and (91) into the
valve body assembly. Checkball (91) is the larger
copper colored ball shown as # 10 on Figure 115.
retain with petrolatum.
2.
Valve body assembly (67)
connect the manual valve link (705) to the
inside detent lever (703).
Auxiliary Accumulator Valve Body Assembly
jjjl
Clean (Figure 116)
❖
1.
2
.
3.
4.
*
1?
Auxiliary valve assembly (377) thoroughly in
clean solvent
move the valves with a pick or small
screwdriver to dislodge any dirt or debris
that may have accum ulated
Air dry
Disassemble (Figure 116)
(3) Bolts (373)
Cover (371) is under spring pressure
Cover (371) and accum ulator piston spring (370)
Piston (367)
Piston oil seal ring (53)
Disassemble (Figure 116)
Position the auxiliary accum ulator valve body on
a clean surface.t R em ove valve trains beginning
with the lower left hand corner. NOTE; valves
are under pressure-cover bores while removing
the roll pin.
Valves and springs must be laid out on a clean
surface in the exact sequence as they are remvoed
Clean
A ll valves and springs in clean solvent
Air dry
Inspect
Piston (367) for:
cracks
porosity
damage
Valves for:
scoring
nicks
scratches
Springs for damaged or distorted coils
•
A uxiliary valve body (377) for:
porosity
damaged machined surfaces
•
Orifice cup plug (359)
remove only if damaged
<--►1 Remove or Disconnect
T ools Required
# 3 Screw Extractor
•
Orifice cup plug (359). U se modified # 3 screw
extractor.
*
*
1.
2
.
3.
4.
+4-
1.
2
.
3.
4.
5.
1.
2
.
3.
4.
Install or Connect
T ools Required
9.5
mm (3 /8 " ) Rod
Orifice cup plug (359). U se 9.5 mm (3 /8 " ) rod.
seat flush
Assemble (Figure 116)
Auxiliary accum ulator valve train exactly as
shown. N otice the valve lands
Assemble (Figure 116)
Piston oil seal ring (369) onto piston (367)
lubricate with petrolatum
Piston (367)
A ccum ulator spring (370)
Cover (371) and (3) bolts (373)
Install or Connect (Figures 116,119 and 120)
Check ball (55B ) into auxiliary accum ulator
valve body (377) as shown in Figure 115.
do not block orifice cup plug
retain with petrolatum
Auxiliary valve body (377)
Bolts (374) and (375) finger tight
Auxiliary accum ulator valve tube (96)
Bolt (376) with tube clamp (97)
torque bolts to 11 N -m (8 lbs.-ft.)
Inspect (Figure 109)
The throttle lever and bracket assembly (65) for
sticking, binding or damage
Make sure it operates freely without restrictions
Replace if necessary
Install or Connect (Figures 118,119 and 120)
T.V. link (64) onto the T.V. lever and bracket as
shown
T.V. lever and bracket assembly (65) onto the
valve body as shown
attach with two valve body to case bolts
(69).
Wire harness clips (66), manual spring assembly
(68), wire retaining washer, and all remaining
valve body to case bolts (69)
Torque to 11.0 N -m (8 lbs.-ft.).
“0 ”ring seal (34) onto the electrical connector
(33)
J
Summary of Contents for 1989 Light Duty Truck
Page 1: ...vr V Light Duty Truck Unit Repair Manual...
Page 2: ......
Page 11: ...GENERAL INFORMATION OA 5 Figure 8 RV Models...
Page 13: ...GENERAL INFORMATION OA 7 Figure 11 ST Models...
Page 18: ......
Page 44: ......
Page 76: ...1B3 18 R 4 AIR CONDITIONING COMPRESSOR N...
Page 114: ......
Page 162: ......
Page 176: ...4B3 14 91 2 INCH RING GEAR...
Page 192: ...4B5 4 DANA REAR AXLES Figure 4 Spreading the Differential Case Figure 7 Removing the Ring Gear...
Page 218: ......
Page 220: ...4B6 2 12 INCH RING GEAR ROCKWELL F 04734 Figure 1 Rear Axle Components...
Page 229: ...12 INCH RING GEAR ROCKWELL 4B6 11 SPECIAL TOOLS Special Tools...
Page 230: ...4B6 12 12 INCH RING...
Page 240: ...4B7 10 LOCKING DIFFERENTIALS SPECIAL TOOLS Special Tools...
Page 260: ...4C2 6 93 4 INCH RING GEAR FRONT AXLE Figure 16 Removing the Pinion Inner Bearing...
Page 273: ...T TRUCK FRONT AXLE 4C3 3 F 05785 Figure 1 Axle Components...
Page 291: ...K TRUCK FRONT AXLE 4C4 3 Figure 1 Front Axle Com ponents K 15 25 Models...
Page 293: ...K TRUCK FRONT AXLE 4C4 5 Figure 3 Front Axle Com ponents K35 Models...
Page 318: ...C4 30 K TRUCK FBOHT AXLE...
Page 334: ......
Page 361: ...2 5 LITER L4 ENGINE 6A1 5 Figure 3 Cylinder Head Manifolds and Components...
Page 363: ...2 5 LITER L4 ENGINE 6A1 7 F 05715 Figure 5 Block and Components...
Page 395: ...2 8 LITER V 6 6A2 3 Figure 1 Engine Lubrication Diagram...
Page 396: ...6A2 4 2 8 LITER V 6 Figure 2 Engine Lubrication Diagram...
Page 424: ...6A2 32 2 8 LITER V 6...
Page 427: ...I 4 3 LITER V 6 6A3 3 Figure 1 Engine Lubrication Diagram B 07857...
Page 451: ...4 3 LITER V 6 6A3 27 SPECIFICATIONS ENGINE SPECIFICATIONS F 6344...
Page 457: ...4 8 LITER L6 6A4 3 Figure 2 Lubrication Diagram Front View...
Page 460: ...6A4 6 4 8 LITER L6 C 1 107 112 fK 108 3 109 165 129 B 05056 Figure 5 Block and Components...
Page 490: ...Ml...
Page 493: ...V8 ENGINE 6A5 3 Figure 1 Lubrication Diagram 5 0L and 5 7L Engines...
Page 494: ...6A5 4 V8 ENGINE Figure 2 Lubrication Diagram 5 0L and 5 7L Engines...
Page 530: ...6A5 40 V8 ENGINE Figure 81 Exhaust Manifold 7 4L Engines Figure 82 Water Pumps and Components...
Page 571: ...6 2 LITER DIESEL 6A7 35 Figure 58 Vacuum Pump Installed...
Page 576: ......
Page 582: ...6C1 6 MODEL 1MEF CARBURETOR Figure 9 Monojet Model 1MEF...
Page 604: ...6C2 6 MODEL M4MEF CARBURETOR Figure 9 Model M4MEF...
Page 640: ...6C4 8 MODEL 700 THROTTLE BODY...
Page 652: ...nmm...
Page 672: ......
Page 693: ...DISTRIBUTORS 6D5 13 Figure 27 Testing the Pickup Coil Figure 28 Testing the Ignition Coil...
Page 696: ......
Page 698: ...7A1 2 700 R4 AUTOMATIC TRANSMISSION Figure 1 Case and External Parts J H 0 0 5 3 7 0 0 R 4 R 2...
Page 745: ...700 R4 AUTOMATIC TRANSMISSION 7A1 49...
Page 762: ...7A2 2 400 475 AUTOMATIC TRANSMISSION Figure 1 Case and External Parts H H 0021 400 R 3...
Page 773: ...400 475 AUTOMATIC TRANSMISSION 7A2 13 Figure 29 Internal Parts H H 0 0 4 3 4 0 0 R 2...
Page 797: ...400 475 AUTOMATIC TRANSMISSION 7A2 37 Figure 93 Control Valve Assem bly...
Page 803: ...400 475 AUTOMATIC TRANSMISSION 7A2 43 Figure 104 Bushing Replacement Procedure...
Page 808: ...J c I i sal...
Page 838: ......
Page 840: ......
Page 842: ......
Page 850: ...7B1 12 HM 290 MANUAL TRANSMISSION J i t i a x V L...
Page 856: ...7B1 18 HM 290 MANUAL TRANSMISSION...
Page 892: ...7B1 54 HM 290 MANUAL TRANSMISSION Figure 93 Special Tools...
Page 897: ...HM 117 TRANSMISSION 7B2 5...
Page 901: ...HM 117 TRANSMISSION 7B2 9 B 05180 Figure 17 Installing the 1st and 2nd Synchronizer...
Page 912: ...20 HM...
Page 924: ...7B3 12 NEW PROCESS TRANSMISSION SPECIAL TOOLS...
Page 927: ...BORG WARNER TRANSMISSIONS 7B4 3 Figure 2 77 mm Transmission and Components...
Page 940: ...i ii iii m i in m i...
Page 944: ...7D1 4 TRANSFER CASE FO 5688 Figure 3 NP205 Transfer Case...
Page 952: ...7D1 12 TRANSFER CASE...
Page 963: ...NEW PROCESS 241 TRANSFER CASE 7D2 11 Figure 17 Oil Pump Pickup Screen Doweled Case Holes...
Page 964: ...7D2 12 NEW PROCESS 241 TRANSFER CASE Figure 18 NP 241 Transfer Case Cut Away...
Page 978: ......
Page 981: ...BORG WARNER 1370 TRANSFER CASE 7D4 3 J...
Page 992: ...7D4 14 BORG WARNER 1370 TRANSFER CASE Figure 26 Installing the Rear Output Yoke...
Page 993: ...BORG WARNER 1370 TRANSFER CASE 7D4 15 Figure 27 BW 1370 Transfer Case...
Page 997: ......
Page 998: ...X 8937...