2002 JEEP LIBERTY Table of Contents

FOREWORD
This manual is designed as a supplement to be used along with the 2002 Liberty service manual,
81-370-02060. It includes information related to the 2.4L gas engine installed in this vehicle by
DaimlerChrysler Corporation. For diagnosis or service procedures relating to other components or systems,
refer to the 2002 Liberty Service Manual.
The information contained in this service manual has been prepared for the professional automotive tech-
nician involved in daily repair operations. Information describing the operation and use of standard and
optional equipment is included in the Owner's Manual provided with the vehicle.
Information in this manual is divided into groups. These groups contain description, operation, diagnosis,
testing, adjustments, removal, installation, disassembly, and assembly procedures for the systems and compo-
nents. To assist in locating a group title page, use the Group Tab Locator on the following page. The solid bar
after the group title is aligned to a solid tab on the first page of each group. The first page of the group has
a contents section that lists major topics within the group. If you are not sure which Group contains the infor-
mation you need, look up the Component/System in the alphabetical index located in the rear of this manual.
A Service Manual Comment form is included at the rear of this manual. Use the form to provide
DaimlerChrysler Corporation with your comments and suggestions.
Tightening torques are provided as a specific value throughout this manual. This value represents the
midpoint of the acceptable engineering torque range for a given fastener application. These torque values are
intended for use in service assembly and installation procedures using the correct OEM fasteners. When
replacing fasteners, always use the same type (part number) fastener as removed.
DaimlerChrysler Corporation reserves the right to change testing procedures, specifications, diagnosis,
repair methods, or vehicle wiring at any time without prior notice or incurring obligation.

INTRODUCTION
TABLE OF CONTENTS
page page
FASTENER IDENTIFICATION
DESCRIPTION..........................1
FASTENER USAGE
DESCRIPTION
DESCRIPTION........................4
DESCRIPTION........................4
THREADED HOLE REPAIR
DESCRIPTION..........................4
INTERNATIONAL SYMBOLS
DESCRIPTION..........................4
METRIC SYSTEM
DESCRIPTION..........................5TORQUE REFERENCES
DESCRIPTION..........................7
VEHICLE EMISSION CONTROL INFORMATION
(VECI) LABEL
DESCRIPTION..........................8
VEHICLE IDENTIFICATION NUMBER
DESCRIPTION..........................8
VEHICLE SAFETY CERTIFICATION LABEL
DESCRIPTION..........................9
FASTENER IDENTIFICATION
DESCRIPTION
The SAE bolt strength grades range from grade 2
to grade 8. The higher the grade number, the greater
the bolt strength. Identification is determined by the
line marks on the top of each bolt head. The actual
bolt strength grade corresponds to the number of linemarks plus 2. The most commonly used metric bolt
strength classes are 9.8 and 10.9. The metric
strength class identification number is imprinted on
the head of the bolt. The higher the class number,
the greater the bolt strength. Some metric nuts are
imprinted with a single-digit strength class on the
nut face. Refer to the Fastener Identification and
Fastener Strength Charts (Fig. 1) and (Fig. 2).
KJINTRODUCTION 1

LUBRICATION & MAINTENANCE
TABLE OF CONTENTS
page page
INTERNATIONAL SYMBOLS
DESCRIPTION Ð INTERNATIONAL SYMBOLS . . 1
FLUID TYPES
DESCRIPTION
DESCRIPTION - FLUID TYPES............1
DESCRIPTION - AXLE...................2
DESCRIPTION - MANUAL TRANSMISSION . . . 2
DESCRIPTION - AUTOMATIC
TRANSMISSION FLUID..................2
DESCRIPTION - TRANSFER CASE - NV231 . . 3
DESCRIPTION - TRANSFER CASE - NV242 . . 3
DESCRIPTION - ENGINE COOLANT........3
OPERATION - AUTOMATIC TRANSMISSION
FLUID...............................4FLUID CAPACITIES
SPECIFICATIONS - FLUID CAPACITIES.......4
FLUID FILL/CHECK LOCATIONS
DESCRIPTION..........................5
MAINTENANCE SCHEDULES
DESCRIPTION..........................5
HOISTING
STANDARD PROCEDURE - HOISTING
RECOMMENDATIONS...................5
JUMP STARTING
STANDARD PROCEDURE - JUMP STARTING
PROCEDURE.........................6
TOWING
STANDARD PROCEDURE - TOWING.........6
INTERNATIONAL SYMBOLS
DESCRIPTION Ð INTERNATIONAL SYMBOLS
DaimlerChrysler Corporation uses international
symbols to identify engine compartment lubricant
and fluid inspection and fill locations (Fig. 1).
FLUID TYPES
DESCRIPTION
DESCRIPTION - FLUID TYPES
When service is required, DaimlerChrysler Corpo-
ration recommends that only Mopartbrand parts,
lubricants and chemicals be used. Mopartprovides
the best engineered products for servicing
DaimlerChrysler Corporation vehicles.
Only lubricants bearing designations defined by
the following organization should be used to service a
Chrysler Corporation vehicle.
²Society of Automotive Engineers (SAE)
²American Petroleum Institute (API) (Fig. 2)
²National Lubricating Grease Institute (NLGI)
(Fig. 3)
SAE VISCOSITY RATING
An SAE viscosity grade is used to specify the vis-
cosity of engine oil. These are specified with a dual
SAE viscosity grade which indicates the cold-to-hot
temperature viscosity range. Example SAE 5W-30 =
multigrade engine oil.
DaimlerChrysler Corporation only recommends
multigrade engine oils.
Fig. 1 International Symbols
KJLUBRICATION & MAINTENANCE 0 - 1

SUSPENSION
TABLE OF CONTENTS
page page
SUSPENSION
DIAGNOSIS AND TESTING - SUSPENSION
AND STEERING SYSTEM................1WHEEL ALIGNMENT......................3
FRONT.................................7
REAR.................................16
SUSPENSION
DIAGNOSIS AND TESTING - SUSPENSION AND
STEERING SYSTEM
CONDITION POSSIBLE CAUSES CORRECTION
FRONT END NOISE 1. Loose or worn wheel bearings. 1. 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. 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. 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.
VEHICLE INSTABILITY 1. Loose or worn wheel bearings. 1. 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.
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.
KJSUSPENSION 2 - 1

WHEEL ALIGNMENT
TABLE OF CONTENTS
page page
WHEEL ALIGNMENT
DESCRIPTION..........................3
OPERATION............................3
STANDARD PROCEDURE
STANDARD PROCEDURE - HEIGHT
MEASUREMENT.......................4
STANDARD PROCEDURE - CAMBER AND
CASTER ADJUSTMENT..................5STANDARD PROCEDURE - TOE
ADJUSTMENT.........................5
STANDARD PROCEDURE - CAMBER,
CASTER AND TOE ADJUSTMENT..........5
SPECIFICATIONS
ALIGNMENT..........................6
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 (Fig. 1).
CAUTION: Never attempt to modify suspension or
steering components by heating or bending.
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 forward provides negative caster. Tilting the
top of the knuckle rearward provides positive caster.
Positive caster promotes directional stability. 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 the
inside or outside edge of the tire (Fig. 1)²TOEis the difference between the leading inside
edges and trailing inside edges of the front tires.
Wheel toe position out of specification cause's unsta-
ble steering, uneven tire wear and steering wheel off-
center. The wheel toe position is thefinalfront
wheel alignment adjustment (Fig. 1)
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)
Fig. 1 Wheel Alignment Measurements
1 - FRONT OF VEHICLE
2 - STEERING AXIS INCLINATION
3 - PIVOT POINT
4 - TOE-IN
KJWHEEL ALIGNMENT 2 - 3

FRONT
TABLE OF CONTENTS
page page
FRONT
DESCRIPTION..........................7
WARNING.............................7
SPECIFICATIONS
TORQUE CHART......................8
SPECIAL TOOLS
FRONT SUSPENSION...................8
BUSHINGS
REMOVAL - STABILIZER BAR BUSHINGS.....9
INSTALLATION - STABILIZER BAR BUSHINGS . . 9
HUB / BEARING
REMOVAL.............................9
INSTALLATION..........................9
KNUCKLE
REMOVAL.............................9
INSTALLATION..........................9
LOWER BALL JOINT
DIAGNOSIS AND TESTING - LOWER BALL
JOINT..............................10
LOWER CONTROL ARM
REMOVAL.............................10
INSTALLATION.........................10
SHOCK
REMOVAL
REMOVAL - LEFT SIDE.................11REMOVAL - RIGHT SIDE................11
INSTALLATION
INSTALLATION - LEFT SIDE.............12
INSTALLATION - RIGHT SIDE............12
SPRING
REMOVAL.............................13
INSTALLATION.........................13
CLEVIS BRACKET
REMOVAL.............................13
INSTALLATION.........................13
STABILIZER BAR
REMOVAL.............................14
INSTALLATION.........................14
STABILIZER LINK
REMOVAL.............................14
INSTALLATION.........................14
UPPER CONTROL ARM
REMOVAL
REMOVAL - RIGHT SIDE................14
REMOVAL - LEFT SIDE.................15
INSTALLATION
INSTALLATION - RIGHT SIDE............15
INSTALLATION - LEFT SIDE.............15
FRONT
DESCRIPTION
The front suspension is designed to allow each
wheel to adapt to different road surfaces indepen-
dently. The wheels are mounted to hub bearings on
the steering knuckle spindles. The double-row hub
bearings are sealed and lubricated for life. The steer-
ing knuckles turn (pivot) on ball joints riveted to the
outboard portion of the control arms. The ball joints
are lubricated for life. (Fig. 1)
WARNING
WARNING:: Suspension components with rubber
bushings must be tightened with the vehicle at nor-
mal ride height. It is important to have the springs
supporting the weight of the vehicle when the fas-
teners are torqued. If springs are not at their normal
ride position, vehicle ride comfort will be affected
and cause premature bushing wear.
Fig. 1 FRONT SUSPENSION
1-SWAYBAR
2 - SWAY BAR BUSHING/BRACKET
3 - UPPER CONTROL ARM
4 - SPRING / SHOCK ASSEMBLY
5 - STEERING KNUCKLE
6 - OUTER TIE ROD END
7 - LOWER CONTROL ARM
8 - SWAY BAR LINK
9 - CLEVIS BRACKET
KJFRONT 2 - 7

REAR
TABLE OF CONTENTS
page page
REAR
DESCRIPTION.........................16
WARNING.............................16
DIAGNOSIS AND TESTING - REAR
SUSPENSION........................17
SPECIFICATIONS
TORQUE CHART......................17
SHOCK
REMOVAL.............................18
INSTALLATION.........................18
SPRING
REMOVAL.............................18
INSTALLATION.........................18
JOUNCE BUMPER
REMOVAL.............................19
INSTALLATION.........................19
STABILIZER BAR
REMOVAL.............................19INSTALLATION.........................19
UPPER BALL JOINT
REMOVAL.............................20
INSTALLATION.........................20
UPPER CONTROL ARM
DESCRIPTION - UPPER SUSPENSION ARM,
BUSHINGS, AND BALL JOINT............20
OPERATION - UPPER SUSPENSION ARM,
BUSHINGS, AND BALL JOINT............20
REMOVAL.............................20
INSTALLATION.........................21
LOWER CONTROL ARM
DESCRIPTION.........................21
OPERATION...........................21
REMOVAL.............................21
INSTALLATION.........................21
REAR
DESCRIPTION
The rear suspension (Fig. 1) is comprised of :
²Drive axle
²Shock absorbers
²Coil springs
²Lower suspension arms
²Upper suspension arm
²Stabilizer bar
CAUTION: Suspension components with rubber/ure-
thane bushings should be tightened with the vehi-
cle at normal ride height. It is important to have the
springs supporting the weight of the vehicle when
the fasteners are torqued. This will maintain vehicle
ride comfort and prevent premature bushing wear.
WARNING
WARNING:: Suspension components with rubber
bushings must be tightened with the vehicle at nor-
mal ride height. It is important to have the springs
supporting the weight of the vehicle when the fas-
teners are torqued. If springs are not at their normal
ride position, vehicle ride comfort will be affected
and cause premature bushing wear.
Fig. 1 REAR SUSPENSION
1 - COIL SPRING
2 - UPPER SUSPENSION ARM
3 - STABILIZER BAR
4 - LOWER SUSPENSION ARM
5 - SHOCK
2 - 16 REARKJ

SUSPENSION
TABLE OF CONTENTS
page page
FRONT
SPECIAL TOOLS
FRONT SUSPENSION...................1
BUSHINGS
REMOVAL
REMOVAL - LOWER CONTROL ARM
BUSHING............................2
REMOVAL - CLEVIS BRACKET BUSHING....2
REMOVAL - UPPER CONTROL ARM
BUSHINGS...........................3
INSTALLATION
INSTALLATION - LOWER CONTROL ARM
BUSHING............................3
INSTALLATION - CLEVIS BRACKET
BUSHING............................4
INSTALLATION - UPPER CONTROL ARM
BUSHINGS...........................4
LOWER BALL JOINT
REMOVAL.............................5INSTALLATION..........................5
REAR
SPECIAL TOOLS
REAR SUSPENSION....................6
UPPER BALL JOINT
REMOVAL.............................6
INSTALLATION..........................6
BUSHINGS
REMOVAL
REMOVAL - LOWER SUSPENSION ARM
BUSHING............................7
REMOVAL - UPPER SUSPENSION ARM
BUSHING............................7
INSTALLATION
INSTALLATION - LOWER SUSPENSION
ARM BUSHING........................8
INSTALLATION - UPPER SUSPENSION ARM
BUSHING............................8
FRONT
SPECIAL TOOLS
FRONT SUSPENSION
BALL JOINT PRESS - C-4212F
Remover C-4150A
REMOVER / INSTALLER FRONT LOWER BALL
JOINT - 8859
KJSUSPENSION 2s - 1