steering wheel JEEP GRAND CHEROKEE 2002 WJ / 2.G Workshop Manual

GROUP TAB LOCATOR
Introduction
0Lubrication & Maintenance
2Suspension
3Driveline
5Brakes
7Cooling
8AAudio
8BChime/Buzzer
8EElectronic Control Modules
8FEngine Systems
8GHeated Systems
8HHorn
8IIgnition Control
8JInstrument Cluster
8LLamps
8MMessage Systems
8NPower Systems
8ORestraints
8PSpeed Control
8QVehicle Theft Security
8RWipers/Washers
8WWiring
9Engine
11Exhaust System
13Frame & Bumpers
14Fuel System
19Steering
21Transaxle
22Tires/Wheels
23Body
24Heating & Air Conditioning
25Emissions Control
Service Manual Comment Forms (Rear of Manual)

²Do not allow towing equipment to contact the
disabled vehicle's fuel tank.
²Do not allow anyone under the disabled vehicle
while it is lifted by the towing device.
²Do not allow passengers to ride in a vehicle
being towed.
²Always observe state and local laws regarding
towing regulations.
²Do not tow a vehicle in a manner that could
jeopardize the safety of the operator, pedestrians or
other motorists.
²Do not attach tow chains, T-hooks, or J-hooks to
a bumper, steering linkage, drive shafts or a non-re-
inforced frame hole.
²Do not tow a heavily loaded vehicle. Use a flat-
bed device to transport a loaded vehicle.
TWO-WHEEL-DRIVE VEHICLE TOWING
DaimlerChrysler Corporation recommends that a
vehicle be towed with the rear end lifted, whenever
possible.
WARNING: WHEN TOWING A DISABLED VEHICLE
AND THE DRIVE WHEELS ARE SECURED IN A
WHEEL LIFT OR TOW DOLLIES, ENSURE THE
TRANSMISSION IS IN THE PARK POSITION (AUTO-
MATIC TRANSMISSION) OR A FORWARD DRIVE
GEAR (MANUAL TRANSMISSION).
WARNING: ENSURE VEHICLE IS ON A LEVEL SUR-
FACE OR THE WHEELS ARE BLOCKED TO PRE-
VENT VEHICLE FROM ROLLING.
TWO WHEEL DRIVE TOWING-REAR END LIFTED
CAUTION: Do not use steering column lock to
secure steering wheel during towing operation.
2WD vehicles can be towed with the front wheels
on the surface for extended distances at speeds not
exceeding 48 km/h (30 mph).
(1) Attach wheel lift device to rear wheels.
(2) Place the transmission in neutral.
(3) Raise vehicle to towing position.
(4) Attach safety chains. Route chains so not to
interfere with tail pipe when vehicle is lifted.
(5) Turn the ignition switch to the OFF position to
unlock the steering wheel.
CAUTION: Do not use steering column lock to
secure steering wheel during towing operation.
(6) Secure steering wheel in straight ahead posi-
tion with a clamp device designed for towing.
(7) Place transmission in park.
TWO WHEEL DRIVE TOWING-FRONT END LIFTED
CAUTION: Many vehicles are equipped with air
dams, spoilers, and/or ground effect panels. To
avoid component damage, a wheel-lift towing vehi-
cle or a flat-bed hauling vehicle is recommended.
(1) Attach wheel lift device to rear wheels.
(2) Place the transmission in neutral.
(3) Raise the rear of the vehicle off the ground and
install tow dollies under rear wheels.
(4) Attach wheel lift device to front wheels and
raise vehicle to towing position.
(5) Attach the safety chains.
CAUTION: Do not use steering column lock to
secure steering wheel during towing operation.
(6) Turn the ignition switch to the OFF position to
unlock the steering wheel.
(7) Secure steering wheel in straight ahead posi-
tion with a clamp device designed for towing.
(8) Place transmission in park.
FOUR-WHEEL-DRIVE VEHICLE TOWING
DaimlerChrysler Corporation recommends that a
4WD vehicle be transported on a flat-bed device. A
Wheel-lift device can be used providedthe trailing
wheels are off the ground and positioned in
tow dollies.
WARNING: WHEN TOWING A DISABLED VEHICLE
AND THE DRIVE WHEELS ARE SECURED IN A
WHEEL LIFT OR TOW DOLLIES, ENSURE THE
TRANSMISSION IS IN THE PARK POSITION.
CAUTION: Many vehicles are equipped with air
dams, spoilers, and/or ground effect panels. To
avoid component damage, a wheel-lift towing vehi-
cle or a flat-bed hauling vehicle is recommended.
FOUR WHEEL DRIVE TOWINGÐREAR END LIFTED
WARNING: ENSURE VEHICLE IS ON A LEVEL SUR-
FACE OR THE WHEELS ARE BLOCKED TO PRE-
VENT VEHICLE FROM ROLLING.
(1) Attach wheel lift device to front wheels.
(2) Place the transmission in neutral.
(3) Raise the front of the vehicle off the ground
and install tow dollies under front wheels.
(4) Attach wheel lift device to rear wheels and
raise vehicle to towing position.
(5) Attach safety chains. Route chains so not to
interfere with tail pipe when vehicle is lifted.
WJLUBRICATION & MAINTENANCE 0 - 9
TOWING (Continued)

(6) Turn the ignition switch to the OFF position to
unlock the steering wheel.
CAUTION: Do not use steering column lock to
secure steering wheel during towing operation.
(7) Secure steering wheel in straight ahead posi-
tion with a clamp device designed for towing.
(8) Place transmission in park.
FOUR WHEEL DRIVE TOWINGÐFRONT END
LIFTED
WARNING: ENSURE VEHICLE IS ON A LEVEL SUR-
FACE OR THE WHEELS ARE BLOCKED TO PRE-
VENT VEHICLE FROM ROLLING.
(1) Attach wheel lift device to rear wheels.(2) Place the transmission in neutral.
(3) Raise the rear of the vehicle off the ground and
install tow dollies under rear wheels.
(4) Attach wheel lift device to front wheels and
raise vehicle to towing position.
(5) Attach the safety chains.
CAUTION: Do not use steering column lock to
secure steering wheel during towing operation.
(6) Turn the ignition switch to the OFF position to
unlock the steering wheel.
(7) Secure steering wheel in straight ahead posi-
tion with a clamp device designed for towing.
(8) Place transmission in park.
0 - 10 LUBRICATION & MAINTENANCEWJ
TOWING (Continued)

SUSPENSION
TABLE OF CONTENTS
page page
SUSPENSION
DIAGNOSIS AND TESTING - SUSPENSION
AND STEERING SYSTEM................1WHEEL ALIGNMENT......................3
FRONT.................................6
REAR.................................17
SUSPENSION
DIAGNOSIS AND TESTING - SUSPENSION AND
STEERING SYSTEM
CONDITION POSSIBLE CAUSES CORRECTION
FRONT END NOISE 1. Loose or worn wheel bearings. 1. Adjust or replace wheel bearings.
2. Loose or worn steering or
suspension components.2. Tighten or replace components as
necessary.
EXCESSIVE PLAY IN
STEERING1. Loose or worn wheel bearings. 1. Adjust or replace wheel bearings.
2. Loose or worn steering or
suspension components.2. Tighten or replace components as
necessary.
3. Loose or worn steering gear. 3. Adjust or replace steering gear.
FRONT WHEELS SHIMMY 1. Loose or worn wheel bearings. 1. Adjust or replace wheel bearings.
2. Loose or worn steering or
suspension components.2. Tighten or replace components as
necessary.
3. Tires worn or out of balance. 3. Replace or balance tires.
4. Alignment. 4. Align vehicle to specifications.
5. Leaking steering dampener. 5. Replace steering dampener.
VEHICLE INSTABILITY 1. Loose or worn wheel bearings. 1. Adjust or replace wheel bearings.
2. Loose or worn steering or
suspension components.2. Tighten or replace components as
necessary.
3. Tire pressure. 3. Adjust tire pressure.
4. Alignment. 4. Align vehicle to specifications.
EXCESSIVE STEERING
EFFORT1. Loose or worn steering gear. 1. Adjust or replace steering gear.
2. Power steering fluid low. 2. Add fluid and repair leak.
3. Column coupler binding. 3. Replace coupler.
4. Tire pressure. 4. Adjust tire pressure.
5. Alignment. 5. Align vehicle to specifications.
WJSUSPENSION 2 - 1

CONDITION POSSIBLE CAUSES CORRECTION
VEHICLE PULLS TO ONE
SIDE DURING BRAKING1. Uneven tire pressure. 1. Adjust tire pressure.
2. Worn brake components. 2. Repair brakes as necessary.
3. Air in brake line. 3. Repair as necessary.
VEHICLE LEADS OR
DRIFTS FROM STRAIGHT
AHEAD DIRECTION ON
UNCROWNED ROAD1. Radial tire lead. 1. Cross front tires.
2. Brakes dragging. 2. Repair brake as necessary.
3. Weak or broken spring. 3. Replace spring.
4. Uneven tire pressure. 4. Adjust tire pressure.
5. Wheel Alignment. 5. Align vehicle.
6. Loose or worn steering or
suspension components.6. Repair as necessary.
7. Cross caster out of spec. 7. Align vehicle.
KNOCKING, RATTLING
OR SQUEAKING1. Worn shock bushings. 1. Replace shock.
2. Loose, worn or bent steering/
suspension components.2. Inspect, tighten or replace components
as necessary.
3. Shock valve. 3. Replace shock.
IMPROPER TRACKING 1. Loose, worn or bent track bar. 1. Inspect, tighten or replace component as
necessary.
2. Loose, worn or bent steering/
suspension components.2. Inspect, tighten or replace components
as necessary.
2 - 2 SUSPENSIONWJ
SUSPENSION (Continued)

WHEEL ALIGNMENT
TABLE OF CONTENTS
page page
WHEEL ALIGNMENT
DESCRIPTION..........................3
OPERATION............................3
STANDARD PROCEDURE
STANDARD PROCEDURE - CAMBER.......3STANDARD PROCEDURE - CASTER.......4
STANDARD PROCEDURE - TOE POSITION . . 4
SPECIFICATIONS
ALIGNMENT..........................5
WHEEL ALIGNMENT
DESCRIPTION
Wheel alignment involves the correct positioning of
the wheels in relation to the vehicle. The positioning
is accomplished through suspension and steering
linkage adjustments. An alignment is considered
essential for efficient steering, good directional stabil-
ity and to minimize tire wear. The most important
measurements of an alignment are caster, camber
and toe position (Fig. 1).
CAUTION: Never attempt to modify suspension or
steering components by heating or bending.
CAUTION: Components attached with a nut and cot-
ter pin must be torqued to specification. Then if the
slot in the nut does not line up with the cotter pin
hole, tighten nut until it is aligned. Never loosen the
nut to align the cotter pin hole.
NOTE: Periodic lubrication of the front suspension/
steering system components may be required. Rub-
ber bushings must never be lubricated, Refer to
Lubrication And Maintenance for the recommended
maintenance schedule.
OPERATION
²CASTERis the forward or rearward tilt of the
steering knuckle from vertical. Tilting the top of the
knuckle rearward provides positive caster. Tilting the
top of the knuckle forward provides negative caster.
Caster is a directional stability angle. This angle
enables the front wheels to return to a straight
ahead position after turns (Fig. 1).
²CAMBERis the inward or outward tilt of the
wheel relative to the center of the vehicle. Tilting the
top of the wheel inward provides negative camber.
Tilting the top of the wheel outward provides positive
camber. Incorrect camber will cause wear on theinside or outside edge of the tire. The angle is not
adjustable, damaged component(s) must be replaced
to correct the camber angle (Fig. 1).
²WHEEL TOE POSITIONis the difference
between the leading inside edges and trailing inside
edges of the front tires. Incorrect wheel toe position
is the most common cause of unstable steering and
uneven tire wear. The wheel toe position is thefinal
front wheel alignment adjustment (Fig. 1).
²STEERING AXIS INCLINATION ANGLEis
measured in degrees and is the angle that the steer-
ing knuckles are tilted. The inclination angle has a
fixed relationship with the camber angle. It will not
change except when a spindle or ball stud is dam-
aged or bent. The angle is not adjustable, damaged
component(s) must be replaced to correct the steering
axis inclination angle.
²THRUST ANGLEis the angle of the rear axle
relative to the centerline of the vehicle. Incorrect
thrust angle can cause off-center steering and exces-
sive tire wear. This angle is not adjustable, damaged
component(s) must be replaced to correct the thrust
angle (Fig. 1).
STANDARD PROCEDURE
STANDARD PROCEDURE - CAMBER
Before each alignment reading the vehicle should
be jounced (rear first, then front). Grasp each
bumper at the center and jounce the vehicle up and
down three times. Always release the bumper in the
down position.
To obtain an accurate alignment, a 4 wheel align-
ment machine must be used and the equipment cali-
bration verified.
The wheel camber angle is preset. This angle is not
adjustable and cannot be altered.
WJWHEEL ALIGNMENT 2 - 3

STANDARD PROCEDURE - CASTER
Before each alignment reading the vehicle should
be jounced (rear first, then front). Grasp each
bumper at the center and jounce the vehicle up and
down three times. Always release the bumper in the
down position.
To obtain an accurate alignment, a 4 wheel align-
ment machine must be used and the equipment cali-
bration verified.
The wheel caster angle is preset. This angle is not
adjustable and cannot be altered.
STANDARD PROCEDURE - TOE POSITION
Before each alignment reading the vehicle should
be jounced (rear first, then front). Grasp each
bumper at the center and jounce the vehicle up and
down three times. Always release the bumper in the
down position.To obtain an accurate alignment, a 4 wheel align-
ment machine must be used and the equipment cali-
bration verified.
NOTE: For an accurate wheel toe position adjust-
ment the engine must be engine running.
(1) Apply parking brakes.
(2) Start the engine and turn wheels both ways
before straightening the steering wheel. Center and
secure the steering wheel.
(3) Loosen the tie rod adjustment sleeve clamp
bolts (Fig. 2).
(4) Turn the sleeve to obtain the preferred positive
TOE-IN specification. Position the clamp bolts as
shown (Fig. 2) for proper clearance.
(5) Tighten the clamp bolts to 68 N´m (50 ft. lbs.).
Fig. 1 Wheel Alignment Measurements
1 - WHEEL CENTERLINE
2 - NEGATIVE CAMBER ANGLE
3 - PIVOT CENTERLINE
4 - SCRUB RADIUS
5 - TRUE VERTICAL6 - KING PIN
7 - VERTICAL
8 - POSITIVE CASTER
2 - 4 WHEEL ALIGNMENTWJ
WHEEL ALIGNMENT (Continued)

NOTE: Make sure the toe setting does not change
during clamp tightening.
(6) Verify alignment specifications, then turn the
engine off.
STEERING WHEEL CENTERING
NOTE: The steering wheel can be centered without
affecting the toe position.
(1) Loosen the drag link adjustment sleeve clamp
bolts.
(2) Turn the adjustment sleeve to center the
wheel.
(3) Position the clamp bolts as shown (Fig. 2)for
proper clearance.
(4) Tighten the clamp bolts to 68 N´m (50 ft. lbs.).
(5) Road test the vehicle to verify the wheel is cen-
tered.
SPECIFICATIONS
ALIGNMENT
NOTE: Specifications are in degrees.
FRONT WHEELS - STANDARD SUSPENSION
SPECIFICATIONS
DESCRIPTION SPECIFICATION
PREFERRED CASTER
+ 6.75ÉCAMBER
20.37ÉTOTAL
TOE-IN
+ 0.20É
RANGE + 6.0É to
+ 7.5É20.75É
to + 0.5É+ .14É to
+ .26É
MAX RT/LT
DIFFERENCE0.5É 0.5É 0.5É
FRONT WHEELS - UP-COUNTRY SUSPENSION
SPECIFICATIONS
DESCRIPTION SPECIFICATION
PREFERRED CASTER
+ 6.5ÉCAMBER
20.37ÉTOTAL
TOE-IN
+ 0.20É
RANGE + 5.7É to
+ 7.2É20.75É
to+0É+ 0.0É to
+ .36É
MAX RT/LT
DIFFERENCE0.5É 0.5É 0.06É
REAR AXLE
SPECIFICATIONS
DESCRIPTION SPECIFICATION
PREFERRED CAMBER
±.37ÉTHRUST
ANGLE
0ÉTOTAL
TOE-IN
+.37É
RANGE 0É to
±.75É  0.25É 0É to
+.70É
Fig. 2 Steering Linkage
1 - DRAG LINK ADJUSTMENT SLEEVE
2 - TIE ROD ADJUSTMENT SLEEVE
WJWHEEL ALIGNMENT 2 - 5
WHEEL ALIGNMENT (Continued)

BUSHINGS
REMOVAL
(1) Remove the upper suspension arm from axle.
(2) Position Spacer 8279 over the axle bushing on
a 4x2 vehicle and right side on a 4x4 vehicle.
(3) Place Receiver 7932-1 over flanged end of the
bushing. (Fig. 2).
(4) Place small end of Remover/Install 7932-2
against other side of the bushing.
(5) Install bolt 7604 through remover, bushing and
receiver.
(6) Install Long Nut 7603 and tighten nut too pull
bushing out of the axle bracket.
(7) Remove nut, bolt, receiver, remover and bush-
ing.
NOTE: On 4x2 vehicle and right side of 4x4 vehicle,
leave Spacer 8279 in position for bushing installa-
tion.
INSTALLATION
(1) Place Receiver 7932-1on the other side of the
axle bracket.
(2) Position new bushing up to the axle bracket.,
and large end of Remover/Install 7932-2 against the
bushing (Fig. 3).
(3) Install bolt 7604 through receiver, bushing and
installer.
(4) Install Long Nut 7603 and tighten nut to draw
the bushing into the axle bracket.(5) Remove tools and install the upper suspension
arm.
HUB / BEARING
DESCRIPTION
The bearing used on the front hub of this vehicle is
the combined hub and bearing unit type assembly.
This unit assembly combines the front wheel mount-
ing hub (flange) and the front wheel bearing into a
one piece unit. The wheel mounting studs are the
only replaceable component of the hub/bearing
assembly.
OPERATION
The hub/bearing assembly is mounted to the steer-
ing knuckle and is retained by three mounting bolts
accessible from the back of the steering knuckle. The
hub/bearing unit is not serviceable and must be
replaced as an assembly if the bearing or the hub is
determined to be defective.
REMOVAL
(1) Raise and support the vehicle.
(2) Remove the wheel and tire assembly.
(3) Remove the brake caliper, caliper anchor, rotor
and ABS wheel speed sensor,(Refer to 5 - BRAKES/
ELECTRICAL/FRONT WHEEL SPEED SENSOR -
REMOVAL).
(4) Remove the cotter pin, nut retainer and axle
hub nut.
(5) Remove the hub bearing mounting bolts from
the back of the steering knuckle. Remove hub bear-
Fig. 2 Bushing Removal
1 - RECEIVER
2 - AXLE BRACKET
3 - BOLT
4 - REMOVER/INSTALLER
5 - LONG NUT
Fig. 3 Bushing Installation
1 - REMOVER/INSTALLER
2 - AXLE BRACKET
3 - BOLT
4 - RECEIVER
5 - LONG NUT
WJFRONT 2 - 9

ing (Fig. 4) from the steering knuckle and off the
axle shaft.
INSTALLATION
(1) Install the hub bearing to the knuckle.
(2) Install the hub bearing to knuckle bolts and
tighten to 102 N´m (75 ft. lbs.).
(3) Install the hub washer and nut. Tighten the
hub nut to 237 N´m (175 ft. lbs.). Install the nut
retainer and a new cotter pin.
(4) Install the brake rotor, caliper anchor, caliper
and ABS wheel speed sensor,(Refer to 5 - BRAKES/
ELECTRICAL/FRONT WHEEL SPEED SENSOR -
INSTALLATION).
(5) Install the wheel and tire assembly (Refer to 22
- TIRES/WHEELS - STANDARD PROCEDURE).
(6) Remove the support and lower the vehicle.
KNUCKLE
DESCRIPTION
The knuckle is a single casting with legs machined
for the upper and lower ball joints. The knuckle also
has machined mounting locations for the front brake
calipers and hub bearing.
OPERATION
The steering knuckle pivot between the upper and
lower ball joint. Steering linkage attached to the
knuckle allows the vehicle to be steered.
REMOVAL - STEERING KNUCKLE
Ball stud service procedures below require removal
of the hub bearing and axle shaft. Removal andinstallation of upper and lower ball studs require the
use of Tool Kit 6289.
(1) Remove hub bearing and axle shaft.
(2) Disconnect the tie-rod or drag link from the
steering knuckle arm,(Refer to 19 - STEERING/
LINKAGE/TIE ROD END - REMOVAL) .
(3) Remove the cotter pins from the upper and
lower ball studs.
(4) Remove the upper and lower ball stud nuts.
(5) Strike the steering knuckle with a brass ham-
mer to loosen knuckle from the ball studs. Remove
knuckle from ball studs (Fig. 5).
INSTALLATION
(1) Position the steering knuckle on the ball studs.
(2) Install and tighten the bottom retaining nut to
109 N´m (80 ft. lbs.) torque. Install new cotter pin.
(3) Install and tighten the top retaining nut to 101
N´m (75 ft. lbs.) torque. Install new cotter pin.
(4) Install the hub bearing and axle shaft.
(5) Connect the tie-rod or drag link end to the
steering knuckle arm.,(Refer to 19 - STEERING/
LINKAGE/TIE ROD END - INSTALLATION) .
Fig. 4 Hub Bearing & Knuckle
1 - HUB BEARING
2 - KNUCKLE
Fig. 5 Steering Knuckle Removal/Installation
1 - AXLE YOKE
2 - UPPER BALL STUD
3 - LOWER BALL STUD
4 - STEERING KNUCKLE
2 - 10 FRONTWJ
HUB / BEARING (Continued)