Turn the vehicle sharply to the left and to the right.
This will load the bearings and change the noise
level. Where axle bearing damage is slight, the noise
is usually not noticeable at speeds above 30 mph.
LOW SPEED KNOCK
Low speed knock is generally caused by a worn
U–joint or by worn side–gear thrust washers. A worn
pinion gear shaft bore will also cause low speed
knock.
VIBRATION
Vibration at the rear of the vehicle is usually
caused by a:
•
Damaged drive shaft.
•
Missing drive shaft balance weight(s).
•
Worn or out–of–balance wheels.
•
Loose wheel lug nuts.
•
Worn U–joint(s).
•
Loose/broken springs.
•
Damaged axle shaft bearing(s).
•
Loose pinion gear nut.
•
Excessive pinion yoke run out.
•
Bent axle shaft(s).
Check for loose or damaged front–end components
or engine/transmission mounts. These components
can contribute to what appears to be a rear–end
vibration. Do not overlook engine accessories, brack-
ets and drive belts.
All driveline components should be examined
before starting any repair.
Refer to Group 22, Wheels and Tires, for additional
vibration information.
DRIVELINE SNAP
A snap or clunk noise when the vehicle is shifted
into gear (or the clutch engaged), can be caused by:
•
High engine idle speed
•
Loose engine/transmission/transfer case mounts
•
Worn U–joints
•
Loose spring mounts
•
Loose pinion gear nut and yoke
•
Excessive ring gear backlash
•
Excessive side gear/case clearance
The source of a snap or a clunk noise can be deter-
mined with the assistance of a helper. Raise the vehi-
cle on a hoist with the wheels free to rotate. Instruct
the helper to shift the transmission into gear. Listen
for the noise, a mechanics stethoscope is helpful in
isolating the source of a noise.
TRAC–LOK DIFFERENTIAL NOISE
The most common problem is a chatter noise when
turning corners. Before removing a Trac-lok unit for
repair, drain, flush and refill the axle with the spec-
ified lubricant. Refer to Lubricant change in this
Group.
A container of Mopar
t
Trac-lok Lubricant (friction
modifier) should be added after repair service or dur-
ing a lubricant change.
After changing the lubricant, drive the vehicle and
make 10 to 12 slow, figure-eight turns. This maneu-
ver will pump lubricant through the clutches. This
will correct the condition in most instances. If the
chatter persists, clutch damage could have occurred.
TRAC–LOK TEST
WARNING: WHEN SERVICING VEHICLES WITH A
TRAC–LOK
DIFFERENTIAL
DO
NOT
USE
THE
ENGINE TO TURN THE AXLE AND WHEELS. BOTH
REAR WHEELS MUST BE RAISED AND THE VEHI-
CLE SUPPORTED. A TRAC–LOK AXLE CAN EXERT
ENOUGH FORCE IF ONE WHEEL IS IN CONTACT
WITH A SURFACE TO CAUSE THE VEHICLE TO
MOVE.
The differential can be tested without removing the
differential case by measuring rotating torque. Make
sure brakes are not dragging during this measure-
ment.
(1) Place blocks in front and rear of both front
wheels.
(2) Raise one rear wheel until it is completely off
the ground.
(3) Engine off, transmission in neutral, and park-
ing brake off.
(4) Remove wheel and bolt Special Tool 6790 to
studs.
(5) Use torque wrench on special tool to rotate
wheel and read rotating torque (Fig. 5).
(6) If rotating torque is less than 22 N·m (30 ft.
lbs.) or more than 271 N·m (200 ft. lbs.) on either
wheel the unit should be serviced.
3 - 52
DIFFERENTIAL AND DRIVELINE
TJ
DIAGNOSIS AND TESTING (Continued)
Содержание Wrangler 1999
Страница 1: ...HOFRPH WR WKH UDQJOHU OHFWURQLF 6HUYLFH 0DQXDO OLFN 2Q 7KH RJR 7R HJLQ...
Страница 7: ...FASTENER IDENTIFICATION TJ INTRODUCTION 5 GENERAL INFORMATION Continued...
Страница 8: ...FASTENER STRENGTH 6 INTRODUCTION TJ GENERAL INFORMATION Continued...
Страница 10: ...METRIC CONVERSION 8 INTRODUCTION TJ GENERAL INFORMATION Continued...
Страница 28: ...Fig 1 Wheel Alignment Measurements 2 2 SUSPENSION TJ DESCRIPTION AND OPERATION Continued...
Страница 60: ...FRONT AXLES DIAGNOSIS 3 18 DIFFERENTIAL AND DRIVELINE TJ DIAGNOSIS AND TESTING Continued...
Страница 61: ...CONTINUED TJ DIFFERENTIAL AND DRIVELINE 3 19 DIAGNOSIS AND TESTING Continued...
Страница 86: ...Fig 72 Gear Tooth Contact Patterns 3 44 DIFFERENTIAL AND DRIVELINE TJ ADJUSTMENTS Continued...
Страница 95: ...DIAGNOSIS CHART TJ DIFFERENTIAL AND DRIVELINE 3 53 DIAGNOSIS AND TESTING Continued...
Страница 96: ...DIAGNOSIS CHART CONTINUED 3 54 DIFFERENTIAL AND DRIVELINE TJ DIAGNOSIS AND TESTING Continued...
Страница 120: ...Fig 75 Gear Tooth Contact Patterns 3 78 DIFFERENTIAL AND DRIVELINE TJ ADJUSTMENTS Continued...
Страница 125: ...Hub Puller 6790 Dial Indicator C 3339 TJ DIFFERENTIAL AND DRIVELINE 3 83 SPECIAL TOOLS Continued...
Страница 130: ...DIAGNOSIS CHART 3 88 DIFFERENTIAL AND DRIVELINE TJ DIAGNOSIS AND TESTING Continued...
Страница 131: ...DIAGNOSIS CHART CONTINUED TJ DIFFERENTIAL AND DRIVELINE 3 89 DIAGNOSIS AND TESTING Continued...
Страница 154: ...Fig 75 Gear Tooth Contact Patterns 3 112 DIFFERENTIAL AND DRIVELINE TJ ADJUSTMENTS Continued...
Страница 198: ...Fig 2 Clutch Components And Inspection TJ CLUTCH 6 3 DIAGNOSIS AND TESTING Continued...
Страница 200: ...DIAGNOSTIC CHART TJ CLUTCH 6 5 DIAGNOSIS AND TESTING Continued...
Страница 201: ...DIAGNOSTIC CHART 6 6 CLUTCH TJ DIAGNOSIS AND TESTING Continued...
Страница 202: ...DIAGNOSTIC CHART CONTINUED TJ CLUTCH 6 7 DIAGNOSIS AND TESTING Continued...
Страница 203: ...DIAGNOSTIC CHART CONTINUED 6 8 CLUTCH TJ DIAGNOSIS AND TESTING Continued...
Страница 302: ...Fig 1 Instrument Cluster Actuator Test 8E 6 INSTRUMENT PANEL SYSTEMS TJ DIAGNOSIS AND TESTING Continued...
Страница 322: ......
Страница 437: ...Wiring Diagram Symbols 8W 01 6 8W 01 GENERAL INFORMATION TJ DESCRIPTION AND OPERATION Continued...
Страница 617: ...Fig 1 Front End Wiring Connectors TJ 8W 90 CONNECTOR GROUND LOCATIONS 8W 90 7 DESCRIPTION AND OPERATION Continued...
Страница 620: ...Fig 4 Engine Compartment Connectors LHD 8W 90 10 8W 90 CONNECTOR GROUND LOCATIONS TJ DESCRIPTION AND OPERATION Continued...
Страница 623: ...Fig 8 Windshield Wiper Motor RHD TJ 8W 90 CONNECTOR GROUND LOCATIONS 8W 90 13 DESCRIPTION AND OPERATION Continued...
Страница 627: ...Fig 12 Engine Grounds TJ 8W 90 CONNECTOR GROUND LOCATIONS 8W 90 17 DESCRIPTION AND OPERATION Continued...
Страница 630: ...Fig 15 Dash Panel Connectors LHD 8W 90 20 8W 90 CONNECTOR GROUND LOCATIONS TJ DESCRIPTION AND OPERATION Continued...
Страница 631: ...Fig 16 Dash Panel Connectors RHD TJ 8W 90 CONNECTOR GROUND LOCATIONS 8W 90 21 DESCRIPTION AND OPERATION Continued...
Страница 635: ...Fig 20 Steering Column Connectors TJ 8W 90 CONNECTOR GROUND LOCATIONS 8W 90 25 DESCRIPTION AND OPERATION Continued...
Страница 637: ...Fig 22 Body Connectors LHD TJ 8W 90 CONNECTOR GROUND LOCATIONS 8W 90 27 DESCRIPTION AND OPERATION Continued...
Страница 638: ...Fig 23 Rear Body Wiring Connectors RHD 8W 90 28 8W 90 CONNECTOR GROUND LOCATIONS TJ DESCRIPTION AND OPERATION Continued...
Страница 643: ...Fig 1 Engine Compartment Splices Front 8W 95 4 8W 95 SPLICE LOCATIONS TJ DESCRIPTION AND OPERATION Continued...
Страница 644: ...Fig 2 Engine Compartment Splices Rear LHD TJ 8W 95 SPLICE LOCATIONS 8W 95 5 DESCRIPTION AND OPERATION Continued...
Страница 645: ...Fig 3 Engine Compartment Splices Rear RHD 8W 95 6 8W 95 SPLICE LOCATIONS TJ DESCRIPTION AND OPERATION Continued...
Страница 646: ...Fig 4 Engine Wiring Splices LHD TJ 8W 95 SPLICE LOCATIONS 8W 95 7 DESCRIPTION AND OPERATION Continued...
Страница 647: ...Fig 5 Engine Wiring Splices RHD 8W 95 8 8W 95 SPLICE LOCATIONS TJ DESCRIPTION AND OPERATION Continued...
Страница 648: ...Fig 6 Engine Wiring Splices LHD TJ 8W 95 SPLICE LOCATIONS 8W 95 9 DESCRIPTION AND OPERATION Continued...
Страница 649: ...Fig 7 Engine Wiring Splices RHD 8W 95 10 8W 95 SPLICE LOCATIONS TJ DESCRIPTION AND OPERATION Continued...
Страница 650: ...Fig 8 Dash Panel Wiring Splices LHD TJ 8W 95 SPLICE LOCATIONS 8W 95 11 DESCRIPTION AND OPERATION Continued...
Страница 651: ...Fig 9 Dash Panel Wiring Splices RHD 8W 95 12 8W 95 SPLICE LOCATIONS TJ DESCRIPTION AND OPERATION Continued...
Страница 652: ...Fig 10 Instrument Panel Wiring Splices LHD TJ 8W 95 SPLICE LOCATIONS 8W 95 13 DESCRIPTION AND OPERATION Continued...
Страница 653: ...Fig 11 Instrument Panel Wiring Splices RHD 8W 95 14 8W 95 SPLICE LOCATIONS TJ DESCRIPTION AND OPERATION Continued...
Страница 654: ...Fig 12 Body Wiring Splices LHD TJ 8W 95 SPLICE LOCATIONS 8W 95 15 DESCRIPTION AND OPERATION Continued...
Страница 655: ...Fig 13 Body Wiring Splices RHD 8W 95 16 8W 95 SPLICE LOCATIONS TJ DESCRIPTION AND OPERATION Continued...
Страница 671: ...Oil Lubrication System 2 5L Engine 9 16 2 5L ENGINE TJ DESCRIPTION AND OPERATION Continued...
Страница 713: ...Oil Lubrication System 4 0L Engine 9 58 4 0L ENGINE TJ DESCRIPTION AND OPERATION Continued...
Страница 754: ...Fig 1 Exhaust System 2 5L Engine Fig 2 Exhaust System 4 0L Engine 11 2 EXHAUST SYSTEM TJ GENERAL INFORMATION Continued...
Страница 764: ...SPECIFICATIONS FRAME DIMENSIONS FRAME SIDE VIEW TJ FRAME AND BUMPERS 13 7...
Страница 765: ...FRAME TOP VIEW 13 8 FRAME AND BUMPERS TJ SPECIFICATIONS Continued...
Страница 831: ...Fig 1 Recirculating Ball Type Gear 19 12 STEERING TJ DESCRIPTION AND OPERATION Continued...
Страница 883: ...6747 1A Adapter Fixture MD 998805 Installer Seal TJ TRANSMISSION AND TRANSFER CASE 21 37 SPECIAL TOOLS Continued...
Страница 923: ...Fig 1 30 32 RH Automatic Transmission TJ TRANSMISSION AND TRANSFER CASE 21 77 GENERAL INFORMATION Continued...
Страница 994: ...HYDRAULIC FLOW IN PARK NEUTRAL 21 148 TRANSMISSION AND TRANSFER CASE TJ SCHEMATICS AND DIAGRAMS Continued...
Страница 995: ...HYDRAULIC FLOW IN D FIRST GEAR TJ TRANSMISSION AND TRANSFER CASE 21 149 SCHEMATICS AND DIAGRAMS Continued...
Страница 996: ...HYDRAULIC FLOW IN D SECOND GEAR 21 150 TRANSMISSION AND TRANSFER CASE TJ SCHEMATICS AND DIAGRAMS Continued...
Страница 997: ...HYDRAULIC FLOW IN D THIRD GEAR TJ TRANSMISSION AND TRANSFER CASE 21 151 SCHEMATICS AND DIAGRAMS Continued...
Страница 999: ...HYDRAULIC FLOW AT PART THROTTLE 3 2 KICKDOWN TJ TRANSMISSION AND TRANSFER CASE 21 153 SCHEMATICS AND DIAGRAMS Continued...
Страница 1000: ...HYDRAULIC FLOW AT FULL THROTTLE 3 2 KICKDOWN 21 154 TRANSMISSION AND TRANSFER CASE TJ SCHEMATICS AND DIAGRAMS Continued...
Страница 1001: ...HYDRAULIC FLOW IN MANUAL SECOND TJ TRANSMISSION AND TRANSFER CASE 21 155 SCHEMATICS AND DIAGRAMS Continued...
Страница 1002: ...HYDRAULIC FLOW IN MANUAL LOW 21 156 TRANSMISSION AND TRANSFER CASE TJ SCHEMATICS AND DIAGRAMS Continued...
Страница 1003: ...HYDRAULIC FLOW IN REVERSE TJ TRANSMISSION AND TRANSFER CASE 21 157 SCHEMATICS AND DIAGRAMS Continued...
Страница 1004: ...HYDRAULIC FLOW IN MANUAL FIRST GEAR 1 21 158 TRANSMISSION AND TRANSFER CASE TJ SCHEMATICS AND DIAGRAMS Continued...
Страница 1005: ...HYDRAULIC FLOW IN MANUAL SECOND GEAR 2 TJ TRANSMISSION AND TRANSFER CASE 21 159 SCHEMATICS AND DIAGRAMS Continued...
Страница 1094: ...WELD LOCATIONS DASH COWL AND PLENUM TJ BODY 23 47 SPECIFICATIONS Continued...
Страница 1095: ...DASH COWL AND PLENUM 23 48 BODY TJ SPECIFICATIONS Continued...
Страница 1096: ...DASH COWL AND PLENUM TJ BODY 23 49 SPECIFICATIONS Continued...
Страница 1097: ...DASH COWL AND PLENUM 23 50 BODY TJ SPECIFICATIONS Continued...
Страница 1098: ...DASH COWL AND PLENUM TJ BODY 23 51 SPECIFICATIONS Continued...
Страница 1099: ...DASH COWL AND PLENUM SUPPORTS AND REINFORCEMENTS 23 52 BODY TJ SPECIFICATIONS Continued...
Страница 1100: ...DASH COWL AND PLENUM SUPPORTS AND REINFORCEMENTS TJ BODY 23 53 SPECIFICATIONS Continued...
Страница 1101: ...DASH COWL AND PLENUM SUPPORTS AND REINFORCEMENTS 23 54 BODY TJ SPECIFICATIONS Continued...
Страница 1102: ...DASH COWL AND PLENUM SUPPORTS AND REINFORCEMENTS TJ BODY 23 55 SPECIFICATIONS Continued...
Страница 1103: ...FRONT FLOOR STRAINER REINFORCEMENT AND COWL SIDE LOWER 23 56 BODY TJ SPECIFICATIONS Continued...
Страница 1104: ...FRONT FLOOR STRAINER REINFORCEMENT AND COWL SIDE LOWER TJ BODY 23 57 SPECIFICATIONS Continued...
Страница 1105: ...FRONT FLOOR STRAINER REINFORCEMENT AND COWL SIDE LOWER 23 58 BODY TJ SPECIFICATIONS Continued...
Страница 1106: ...FRONT FLOOR STRAINER REINFORCEMENT AND COWL SIDE LOWER TJ BODY 23 59 SPECIFICATIONS Continued...
Страница 1107: ...SIDE APERTURE 23 60 BODY TJ SPECIFICATIONS Continued...
Страница 1108: ...SIDE APERTURE TJ BODY 23 61 SPECIFICATIONS Continued...
Страница 1109: ...SIDE APERTURE 23 62 BODY TJ SPECIFICATIONS Continued...
Страница 1110: ...SIDE APERTURE TJ BODY 23 63 SPECIFICATIONS Continued...
Страница 1111: ...SIDE APERTURE 23 64 BODY TJ SPECIFICATIONS Continued...
Страница 1112: ...WHEELHOUSE TJ BODY 23 65 SPECIFICATIONS Continued...
Страница 1113: ...WHEELHOUSE 23 66 BODY TJ SPECIFICATIONS Continued...
Страница 1114: ...WHEELHOUSE TJ BODY 23 67 SPECIFICATIONS Continued...
Страница 1115: ...REAR FLOOR PAN AND REINFORCEMENTS 23 68 BODY TJ SPECIFICATIONS Continued...
Страница 1116: ...REAR FLOOR PAN AND REINFORCEMENTS TJ BODY 23 69 SPECIFICATIONS Continued...
Страница 1117: ...REAR FLOOR PAN AND REINFORCEMENTS 23 70 BODY TJ SPECIFICATIONS Continued...
Страница 1118: ...DOOR OUTER PANELS TJ BODY 23 71 SPECIFICATIONS Continued...
Страница 1119: ...DOOR OUTER PANELS 23 72 BODY TJ SPECIFICATIONS Continued...
Страница 1120: ...SEALER LOCATIONS APPLICATION METHODS TJ BODY 23 73 SPECIFICATIONS Continued...
Страница 1121: ...COWL AND PLENUM 23 74 BODY TJ SPECIFICATIONS Continued...
Страница 1122: ...COWL TOP END AND PLENUM TJ BODY 23 75 SPECIFICATIONS Continued...
Страница 1123: ...COWL AND WINDSHIELD OUTER PANEL INNER WHEELHOUSE 23 76 BODY TJ SPECIFICATIONS Continued...
Страница 1124: ...REAR FLOOR RISER AND OUTER BODY SEAMS REAR CORNER PANEL TJ BODY 23 77 SPECIFICATIONS Continued...
Страница 1125: ...HALF DOOR FULL DOOR 23 78 BODY TJ SPECIFICATIONS Continued...
Страница 1127: ...QUARTER WINDOW OPENING 23 80 BODY TJ SPECIFICATIONS Continued...
Страница 1128: ...ENGINE COMPARTMENT TJ BODY 23 81 SPECIFICATIONS Continued...
Страница 1146: ...Fig 10 Vacuum Circuits Heater Only 24 16 HEATING AND AIR CONDITIONING TJ DIAGNOSIS AND TESTING Continued...
Страница 1147: ...Fig 11 Vacuum Circuits Heater A C TJ HEATING AND AIR CONDITIONING 24 17 DIAGNOSIS AND TESTING Continued...