The JEEP LIBERTY 2002 KJ / 1.G Workshop Manual

SPECIFICATIONS
TORQUE CHART
TORQUE SPECIFICATIONS
DESCRIPTION N´m Ft. Lbs. In. Lbs.
Tilt Steering Column
Steering Wheel Bolt54 40 Ð
Tilt Steering Column
Mounting Bolts17 Ð 150
Tilt Steering Column
Coupler Bolt49 36 Ð
Non-Tilt Steering Column
Steering Wheel Bolt54 40 Ð
Non-Tilt Steering Column
Mounting Bolts17 Ð 150
Non-Tilt Steering Column
Coupler Bolt49 36 Ð
Ignition Switch Screws 2 Ð 17
SPECIAL TOOLS
STEERING COLUMN
IGNITION SWITCH
DESCRIPTION
The electrical ignition switch is located on the
steering column. It is used as the main on/off switch-
ing device for most electrical components. The
mechanical key lock cylinder is used to engage/disen-
gage the electrical ignition switch.
DIAGNOSIS AND TESTING - IGNITION SWITCH
ELECTRICAL DIAGNOSIS
For ignition switch electrical schematics, Refer to
the appropriate section for the component.
MECHANICAL DIAGNOSIS (KEY DIFFICULT TO
ROTATE)
Vehicles equipped with an automatic trans-
mission and a floor mounted shifter:a cable is
used to connect the interlock device in the steering
column assembly, to the transmission floor shift
lever. This interlock system is used to lock the trans-
mission shifter in the PARK position when the key
lock cylinder is rotated to the LOCKED or ACCES-
SORY position. If the ignition key is difficult to
rotate to or from the LOCK or ACCESSORY position,
it may not be the fault of the key cylinder or the
steering column components. The brake transmission
shift interlock cable may be out of adjustment. (Refer
to 21 - TRANSMISSION/TRANSAXLE/AUTOMATIC
- 30RH/GEAR SHIFT CABLE - ADJUSTMENTS).
The interlock system within the steering column is
not serviceable. If repair is necessary, the steering
column assembly must be replaced. (Refer to 19 -
STEERING/COLUMN - REMOVAL).
Vehicles equipped with a manual transmis-
sion and a floor mounted shifter:on certain mod-
els, a button is located on the steering column behind
the ignition key lock cylinder. The button must be
manually depressed to allow rotation of the ignition
key lock cylinder to the LOCK or ACCESSORY posi-
tion. If it is difficult to rotate the key to the LOCK or
ACCESSORY position, the lever mechanism may be
defective. This mechanism is not serviceable. If
repair is necessary, the steering column assembly
must be replaced.(Refer to 19 - STEERING/COL-
UMN - REMOVAL).
Puller C-3894-A
19 - 8 COLUMNKJ
COLUMN (Continued)

REMOVAL
IGNITION SWITCH REMOVAL
The ignition key must be in the key cylinder for
cylinder removal. The key cylinder must be removed
first before removing ignition switch.
(1) Remove lower steering column cover screws
and remove cover.
(2) Remove lock cylinder.(Refer to 19 - STEERING/
COLUMN/KEY/LOCK CYLINDER - REMOVAL).
(3) Remove the multi-function switch.
(4) Disconnect the electrical connector at the rear
of the ignition switch.
(5) Remove the ignition switch mounting screw
(Fig. 7). Use tamper proof torx bit to remove the
screw.
(6) Pull the ignition switch straight out to remove
from the locking tabs (Fig. 8)
INSTALLATION
IGNITION SWITCH INSTALLATION
The ignition key must be in the key cylinder for
cylinder installation. The key cylinder must be
aligned with the ignition switch for installation.
(1) Before installing ignition switch, rotate the slot
in the switch to the ON position (Fig. 9).
(2) Connect the electrical connector to rear of igni-
tion switch. Make sure that locking tab is fully
seated into wiring connector.
(3) Position the switch to the column and install
tamper proof screw. Tighten screw to 2 N´m (17 in.
lbs.).(4) Install the lock cylinder (Refer to 19 - STEER-
ING/COLUMN/KEY/LOCK CYLINDER - INSTALLA-
TION).
(5) Test the operation of the lock cylinder for
smooth rotating.
(6) Install the multi-function switch.
(7) Install steering column lower cover.
Fig. 7 IGNITION SWITCH MOUNTING SCREW
1 - Tamper Proof Torx Screw
2 - Ignition Switch
Fig. 8 IGNITION SWITCH TABS
1 - Ignition Switch
2 - Locking Tabs
Fig. 9 IGNITION SWITCH ON POSITION
1 - Ignition Switch
2 - Rotate to On Position
KJCOLUMN 19 - 9
IGNITION SWITCH (Continued)

KEY-IN IGNITION SWITCH
DESCRIPTION
The key-in ignition switch is integral to the igni-
tion switch, which is mounted on the left side of the
steering column, opposite the ignition lock cylinder.
It closes a path to ground for the instrument cluster
chime warning circuitry when the ignition key is
inserted in the ignition lock cylinder and the driver
door jamb switch is closed (driver door is open). The
key-in ignition switch opens the ground path when
the key is removed from the ignition lock cylinder.
The key-in ignition switch cannot be repaired and,
if faulty or damaged, the entire ignition switch must
be replaced. (Refer to 19 - STEERING/COLUMN/IG-
NITION SWITCH - REMOVAL).
DIAGNOSIS AND TESTING - KEY-IN IGNITION
SWITCH
For circuit descriptions and diagrams, Refer to the
appropriate sections on the individual components.
WARNING: ON VEHICLES EQUIPPED WITH AIR-
BAGS, REFER TO ELECTRICAL - PASSIVE
RESTRAINT SYSTEMS BEFORE ATTEMPTING ANY
STEERING WHEEL, STEERING COLUMN, OR
INSTRUMENT PANEL COMPONENT DIAGNOSIS OR
SERVICE. FAILURE TO TAKE THE PROPER PRE-
CAUTIONS COULD RESULT IN ACCIDENTAL AIR-
BAG DEPLOYMENT AND POSSIBLE PERSONAL
INJURY.
(1) Disconnect and isolate the battery negative
cable. Remove the steering column shrouds. Unplug
the key-in ignition switch wire harness connector
from the ignition switch.
(2) Check for continuity between the key-in switch
sense circuit and the left front door jamb switch
sense circuit terminals of the key-in ignition switch.
There should be continuity with the key in the igni-
tion lock cylinder, and no continuity with the key
removed from the ignition lock cylinder. If OK, go to
Step 3. If not OK, replace the faulty ignition switch
assembly.
(3) Check for continuity between the left front door
jamb switch sense circuit cavity of the key-in ignition
switch wire harness connector and a good ground.
There should be continuity with the driver door open,
and no continuity with the driver door closed. If OK,
see the diagnosis for Instrument Cluster in this
group. If not OK, repair the circuit to the driver door
jamb switch as required.
LOCK CYLINDER
REMOVAL
The ignition key must be in the key cylinder for
cylinder removal. The key cylinder must be removed
first before removing ignition switch.
(1) If equipped with an automatic transmission,
place shifter in PARK position.
(2) Remove the lower shroud cover.
(3) Remove the remote keyless entry (R.K.E.) mod-
ule.
(4) Remove the halo ring around the lock cylinder.
(5) Rotate key to ON position.
(6) A release tang is located on bottom of key cyl-
inder (Fig. 10).
(7) Position a small screwdriver or pin punch into
tang access hole on bottom of steering column (Fig.
11).
(8) Push the pin punch up while pulling key cylin-
der from steering column.
Fig. 10 LOCK CYLINDER RELEASE TANG
1 - Lock Cylinder
2 - Release Tang
19 - 10 COLUMNKJ

INSTALLATION
The ignition key must be in the key cylinder for
cylinder installation.
(1) Install the lock cylinder into the housing using
care to align the end of the lock cylinder with the
ignition switch.
(2) Push the lock cylinder in until it clicks.
(3) Rotate the key to the lock position.
(4) install the halo ring around the lock cylinder
housing.
(5) Install the R.K.E. module.
(6) Install the lower shroud cover.
INTERMEDIATE SHAFT
REMOVAL
(1) Disconnect the negative battery cable.
(2) Remove knee blocker cover and knee blocker,
(Refer to 23 - BODY/INSTRUMENT PANEL/KNEE
BLOCKER - REMOVAL).
(3) Lock the steering wheel with the tires in the
straight ahead position.
(4) Remove the lower column pinch bolt (Fig. 12).
(5) Lower the steering coupler shaft from the col-
umn.
(6) Remove the intermediate shaft seal by pushing
in the four tangs securing it to the panel (Fig. 12).
(7) Remove the center support bearing bracket
from the mount on the shock tower.
(8) Remove the lower coupler pinch bolt at the
steering gear (Fig. 12).
(9) Remove the coupler at the steering gear (Fig.
12).(10) Remove the intermediate shaft from the vehi-
cle (Fig. 12).
(11) Remove the center support bracket from the
steering shaft (if replacing the intermediate shaft).
INSTALLATION
(1) Install the center support bracket to the steer-
ing shaft (if removed).
(2) Install the intermediate shaft to the vehicle
(Fig. 12).
(3) Install the coupler at the steering gear (Fig.
12).
(4) Install the lower coupler pinch bolt at the
steering gear and tighten the bolt to 49 N´m (36 ft.
lbs.) (Fig. 12).
(5) Install the center support bearing bracket to
the mounting holes on the shock tower.
(6) Install the intermediate shaft seal by pushing
it in securing the four tangs to the panel (Fig. 12).
(7) Install the steering coupler shaft to the column.
(8) Install the lower column pinch bolt and tighten
the bolt to 49 N´m (36 ft. lbs.) (Fig. 12).
(9) Unlock the steering wheel.
(10) Install the knee blocker cover and knee
blocker (Refer to 23 - BODY/INSTRUMENT PANEL/
KNEE BLOCKER - INSTALLATION).
(11) Reconnect the negative battery cable.
Fig. 11 LOCK CYLINDER RELEASE
1 - LOCK CYLINDER
2 - KEY
3 - PIN PUNCH
Fig. 12 STEERING COUPLER
1 - PINCH BOLT
2 - STEERING SHAFT
3 - STEERING COUPLER
4 - PINCH BOLT
KJCOLUMN 19 - 11
LOCK CYLINDER (Continued)

STEERING WHEEL
REMOVAL
(1) Disable and remove the drivers side airbag.(Re-
fer to 8 - ELECTRICAL/RESTRAINTS/DRIVER AIR-
BAG - REMOVAL).
(2) Partially remove the steering wheel bolt and
leave the bolt in the column.
(3) Install puller C-3894±A or equivalent using the
top of the bolt to push on. (Fig. 13)
(4) Remove the steering wheel.
INSTALLATION
NOTE: Do not reuse the old steering wheel bolt (a
new bolt must be used)
(1) Install steering wheel to the column
NOTE: Be certain that the steering wheel mounting
bolt is tightened to the proper torque specification
to ensure proper clockspring operation.
(2) Install the new steering wheel bolt. Tighten the
bolt to 54 N´m (40 ft. lbs.).
(3) Install the drivers side air bag. (Refer to 8 -
ELECTRICAL/RESTRAINTS/DRIVER AIRBAG -
INSTALLATION).
Fig. 13 Steering Wheel Puller
1 - PULLER C-3894-A
2 - STEERING WHEEL
19 - 12 COLUMNKJ

GEAR
TABLE OF CONTENTS
page page
GEAR
DESCRIPTION.........................13
OPERATION...........................13
REMOVAL
REMOVAL - 4WD......................13
REMOVAL - 2WD......................14
INSTALLATION
INSTALLATION - 4WD..................14INSTALLATION - 2WD..................14
SPECIFICATIONS
TORQUE CHART......................15
SPECIAL TOOLS
OUTER TIE ROD END REMOVAL TOOL....15
GEAR
DESCRIPTION
A rack and pinion steering gear (Fig. 1) is made up
of two main components, the pinon shaft and the
rack. The gear cannot be adjusted or internally ser-
viced. If a malfunction or a fluid leak occurs, the gear
must be replaced as an assembly.
OPERATION
The steering column intermediate shaft is attached
to the gear pinion. The rotation of the pinion moves
the gear rack from side-to-side. This lateral action of
the rack pushes and pulls the tie rods, which are
connected to the steering knuckles to change the
direction of the front wheels.
REMOVAL
REMOVAL - 4WD
(1) Siphon the power steering fluid from the power
steering reservoir.
(2) Lock the steering wheel to prevent spinning of
the clockspring.
(3) Raise and support the vehicle.
(4) Remove the skid plate from under the front
end to gain access to the gear (Refer to 13 - FRAME
& BUMPERS/FRAME/FRONT SKID PLATE -
REMOVAL).
(5) Remove the front tire and wheel assemblies.
NOTE: Mark the alignment adjusting cams for eas-
ier installation.
(6) Remove the lower control arms. (Refer to 2 -
SUSPENSION/FRONT/LOWER CONTROL ARM -
REMOVAL).
(7) Remove the front axle. (Refer to 3 - DIFFER-
ENTIAL & DRIVELINE/FRONT AXLE - REMOV-
AL).
(8) Remove the tie rod end nuts.
(9) Separate tie rod ends from the knuckles with
Puller C-3894-A.
(10) Remove the intermediate shaft lower coupler
bolt and slide the coupler off the gear (Fig. 2).
(11) Remove power steering pressure hose bracket
(Fig. 3).
(12) Remove the power steering lines from the
gear (Fig. 2).
(13) Remove the mounting bolts from the gear to
the front cradle (Fig. 3).
(14) Remove the steering gear from the vehicle.
Fig. 1 Rack & Pinion Steering Gear
1 - TIE ROD - INNER
2 - TIE ROD - INNER
3 - TIE ROD END - OUTER LH
4 - BOOTS
5 - TIE ROD END - OUTER RH
KJGEAR 19 - 13

REMOVAL - 2WD
(1) Siphon the power steering fluid from the power
steering reservoir.
(2) Lock the steering wheel to prevent spinning of
the clockspring.
(3) Raise and support the vehicle.
(4) Remove the skid plate from under the front
end to gain access to the gear(Refer to 13 - FRAME
& BUMPERS/FRAME/FRONT SKID PLATE -
REMOVAL).
(5) Remove the tire and wheel assembly.
NOTE: Mark the alignment adjusting cams and tie
rod end jam nuts on the steering gear for easier
installation.
(6) Remove the tie rod end nuts.
(7) Separate tie rod ends from the knuckles with
Puller C-3894-A.
(8) Remove the lower intermediate shaft coupler
bolt and slide the coupler off the gear (Fig. 2).(9) Remove power steering pressure hose bracket
(Fig. 3).
(10) Remove the power steering lines from the
gear (Fig. 2).
(11) Remove the mounting bolts from the gear to
the front cradle (Fig. 3).
(12) Remove the steering gear from the vehicle.
INSTALLATION
INSTALLATION - 4WD
(1) Transfer the tie rod ends to the new steering
gear (if needed).
(2) Install the steering gear to the vehicle.
(3) Install the gear mounting bolts to the front cra-
dle. (Fig. 3). Tighten the gear mounting bolts to 162
N´m (120 ft.lbs.)
(4) Install the power steering lines to the gear
(Fig. 2).
(5) Install the power steering pressure hose
bracket (Fig. 3).
(6) Install the lower coupler bolt and slide the cou-
pler on to the gear (Fig. 2).
(7) Install the tie rod end to the knuckle and
tighten the nuts.
(8) Install the front axle. (Refer to 3 - DIFFEREN-
TIAL & DRIVELINE/FRONT AXLE - INSTALLA-
TION).
(9) Install the lower control arms. (Refer to 2 -
SUSPENSION/FRONT/LOWER CONTROL ARM -
INSTALLATION).
(10) Install the tire and wheel assembly. (Refer to
22 - TIRES/WHEELS/WHEELS - STANDARD PRO-
CEDURE).
(11) Install the skid plate (Refer to 13 - FRAME &
BUMPERS/FRAME/FRONT SKID PLATE - INSTAL-
LATION).
(12) Lower the vehicle.
(13) Unlock the steering wheel.
(14) Fill the power steering fluid (Refer to 19 -
STEERING/PUMP - STANDARD PROCEDURE).
(15) Reset the toe and center the steering wheel
(Refer to 2 - SUSPENSION/WHEEL ALIGNMENT -
STANDARD PROCEDURE).
INSTALLATION - 2WD
(1) Transfer the outer tie rod ends to the new
steering gear (if needed).
(2) Install the steering gear to the vehicle.
(3) Install the gear mounting bolts to the front cra-
dle. (Fig. 3). Tighten the gear mounting bolts to 162
N´m (120 ft.lbs.)
(4) Install the power steering lines to the gear
(Fig. 2).
Fig. 2 COUPLER BOLT
Fig. 3 RACK & PINION
19 - 14 GEARKJ
GEAR (Continued)

(5) Install the power steering pressure hose
bracket (Fig. 3).
(6) Install the lower coupler bolt and slide the cou-
pler on to the gear (Fig. 2).
(7) Install the tie rod end to the knuckle and
tighten the nuts.
(8) Install the tire and wheel assembly. (Refer to
22 - TIRES/WHEELS/WHEELS - STANDARD PRO-
CEDURE).
(9) Install the skid plate(Refer to 13 - FRAME &
BUMPERS/FRAME/FRONT SKID PLATE - INSTAL-
LATION).(10) Lower the vehicle.
(11) Unlock the steering wheel.
(12) Fill the power steering fluid (Refer to 19 -
STEERING/PUMP - STANDARD PROCEDURE).
(13) Reset the toe and center the steering wheel
(Refer to 2 - SUSPENSION/WHEEL ALIGNMENT -
STANDARD PROCEDURE).
SPECIFICATIONS
TORQUE CHART
TORQUE SPECIFICATIONS
DESCRIPTION N´m Ft. Lbs. In. Lbs.
Rack and Pinion Steering
Gear
Gear to Frame Bolts162 120 Ð
Rack and Pinion Steering
Gear
Intermediate Shaft Bolt49 36 Ð
Tie Rod End
Knuckle Nut108 80 Ð
Tie Rod End
Jam Nut75 55 Ð
Power Steering Line
Pressure Line35 25 Ð
Power Steering Line
Return Line35 25 Ð
SPECIAL TOOLS
OUTER TIE ROD END REMOVAL TOOL
Puller C-3894-A
KJGEAR 19 - 15
GEAR (Continued)

LINKAGE
TABLE OF CONTENTS
page page
LINKAGE
STANDARD PROCEDURE - STEERING
LINKAGE............................16TIE ROD END
REMOVAL.............................16
INSTALLATION.........................16
LINKAGE
STANDARD PROCEDURE - STEERING LINKAGE
The tie rod end and ball stud seals should be
inspected during all oil changes. If a seal is damaged,
replace the tie rod.
CAUTION: If any steering components are replaced
or serviced an alignment must be performed, to
ensure the vehicle meets all alignment specifica-
tions.
TIE ROD END
REMOVAL
(1) Raise and support the vehicle.
(2) Remove the tire and wheel assembly.
NOTE: Mark the tie rod end jam nuts on the steer-
ing gear for easier installation.
(3) Loosen the tie rod end jam nut (Fig. 1).
(4) Remove the tie rod end nut (Fig. 1).
(5) Seperate the tie rod end from the knuckle
using tool C3894A.
NOTE: Count the number of turns when removing.
(6) Remove the tie rod end from the rack (Fig. 1).
INSTALLATION
(1) Install the tie rod end to the rack to the exact
number of turns that it was removed (Fig. 1).(2) Install the tie rod end to the knuckle. Tighten
the nut to 108 N´m (80 ft.lbs).
(3) Tighten the jam nut to 76 N´m (55 ft.lbs). (Fig.
1).
(4) Install the tire and wheel assembly. (Refer to
22 - TIRES/WHEELS/WHEELS - STANDARD PRO-
CEDURE).
(5) Reset the toe and center the steering wheel
(Refer to 2 - SUSPENSION/WHEEL ALIGNMENT -
STANDARD PROCEDURE).
Fig. 1 TIE ROD END
1 - JAM NUT
2 - TIE ROD - INNER
3 - TIE ROD END - OUTER
19 - 16 LINKAGEKJ

PUMP
TABLE OF CONTENTS
page page
PUMP
DESCRIPTION.........................17
OPERATION...........................17
STANDARD PROCEDURE - POWER
STEERING PUMP - INITIAL OPERATION....18
REMOVAL
REMOVAL - 3.7L......................18
REMOVAL - 2.4L......................18
INSTALLATION
INSTALLATION - 3.7L..................19
INSTALLATION - 2.4L..................19
SPECIFICATIONS
TORQUE CHART......................19
SPECIAL TOOLS
POWER STEERING PUMP..............20
FLUID COOLER
DESCRIPTION.........................20
OPERATION...........................20
REMOVAL.............................20
INSTALLATION.........................20
HOSES
REMOVAL
REMOVAL - PRESSURE HOSE...........21
REMOVAL - RETURN HOSE (GEAR TO THE
COOLER)...........................21REMOVAL - RETURN HOSE (RESERVOIR
TO THE COOLER).....................21
INSTALLATION
INSTALLATION - PRESSURE HOSE.......21
INSTALLATION - RETURN HOSE (GEAR TO
THE COOLER)........................22
INSTALLATION - RETURN HOSE
(RESERVOIR TO THE COOLER)..........22
POWER STEERING PRESSURE SWITCH
DESCRIPTION.........................22
OPERATION...........................22
REMOVAL.............................22
INSTALLATION.........................22
PULLEY
REMOVAL.............................23
INSTALLATION.........................23
RESERVOIR
REMOVAL
REMOVAL - 3.7L......................24
REMOVAL - 2.4L......................24
INSTALLATION
INSTALLATION - 3.7L..................24
INSTALLATION - 2.4L..................24
PUMP
DESCRIPTION
Hydraulic pressure for the power steering system
is provided by a belt driven power steering pump
(Fig. 1). The pump shaft has a pressed-on high
strength plastic drive pulley that is belt driven by
the crankshaft pulley. The integral reservoir used on
the 3.7L only is attached to the pump body with
spring clips (Fig. 1). The 2.4L uses a remote fluid res-
ervoir (Fig. 2). The power steering pump is connected
to the steering gear by the pressure and return
hoses.
OPERATION
The power steering pump is a constant flow rate
and displacement, vane-type pump. The pump inter-
nal parts operate submerged in fluid. The flow con-
trol orifice is part of the high pressure line fitting.
The pressure relief valve inside the flow control valve
limits the pump pressure.Fig. 1 POWER STEERING PUMP ASSEMBLY
1 - RESERVOIR
2 - CAP
3 - PULLEY
4 - PUMP BODY
5 - RESERVOIR RETAINING CLIPS
KJPUMP 19 - 17