2002 CHRYSLER CARAVAN reset

INSTALLATION
CAUTION: Hub and bearing assembly mounting
surfaces on the steering knuckle and stub axle (Fig.
7) must be smooth and completely free of foreign
material or nicks prior to installing hub and bearing
assembly.
CAUTION: When installing hub and bearing into
steering knuckle, be careful not to damage the
bearing seal (Fig. 7) on the outer C/V joint.(1) Install hub and bearing onto stub axle and into
steering knuckle until squarely seated on the face of
the steering knuckle.
(2) Install the 4 hub and bearing mounting bolts
from the rear of the knuckle. Equally tighten all 4
mounting bolts in a criss-cross pattern until hub/
bearing assembly is squarely seated against front of
steering knuckle. Tighten mounting bolts to a torque
of 65 N´m (45 ft. lbs.)
(3) Install the brake rotor on the hub and bearing
(Fig. 5).
(4) Install brake caliper and adapter assembly
back over brake rotor and align with mounting holes
on steering knuckle (Fig. 5). Install the mounting
bolts and tighten to 169 N´m (125 ft. lbs.) torque.
(5) Install the hub nut on the end of the stub axle
(Fig. 4). With aid of a helper applying the brakes to
keep the front hub from turning, tighten the hub nut
to Install the mounting bolts and tighten to 244 N´m
(180 ft. lbs.) torque.
(6) Install wheel and tire assembly on vehicle.
Tighten the wheel mounting stud nuts in proper
sequence until all nuts are torqued to half specifica-
tion. Then repeat the tightening sequence to the full
specified torque of 135 N´m (100 ft. lbs.).
(7) Lower vehicle to the ground.
(8) Check the front wheel alignment toe setting
and reset if not within specifications. (Refer to 2 -
SUSPENSION/WHEEL ALIGNMENT - STANDARD
PROCEDURE)
KNUCKLE
DESCRIPTION
The steering knuckle is a singlealuminumcast-
ing with legs machined for attachment of the strut
assembly, steering linkage, disc brake caliper
adapter, lower control arm ball joint and steering
linkage (Fig. 1). The hub and bearing assembly is
mounted in the center of the steering knuckle using
4 bolts. The driveshaft's constant velocity (C/V) stub
axle is splined through the center of the hub and
bearing and is held in place using a nut, nut lock and
cotter pin.
Service replacement of the front hub and bearing
assembly can be done with the steering knuckle
remaining on the vehicle.
OPERATION
The steering knuckle pivots with the strut assem-
bly between the lower ball joint and the pivot bearing
in the strut assembly. The steering gear outer tie rod
end connects to the trailing end of each knuckle,
allowing the vehicle to be steered.
Fig. 6 Hub And Bearing Mounting Bolts
1 - HUB
2 - STEERING KNUCKLE
3 - MOUNTING BOLTS (4)
4 - DRIVESHAFT
Fig. 7 Mounting Surfaces (Typical)
1 - BEARING SEAL
2 - STUB AXLE
3 - THESE SURFACES MUST BE CLEAN AND FREE OF NICKS
BEFORE INSTALLING BEARING ASSEMBLY
4 - STEERING KNUCKLE
2 - 6 FRONT SUSPENSIONRS
HUB / BEARING (Continued)
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TOE-OUT ON TURNS
Toe-out on turns is the relative positioning of the
front wheels while steering through a turn (Fig. 4).
This compensates for each front wheel's turning
radius. As the vehicle encounters a turn, the out-
board wheel must travel in a larger radius circle
than the inboard wheel. The steering system is
designed to make each wheel follow its particular
radius circle. To accomplish this, the front wheels
must progressively toe outward as the steering is
turned from center. This eliminates tire scrubbing
and undue tire wear when steering a vehicle through
a turn.
DYNAMIC TOE PATTERN
Dynamic toe pattern is the inward and outward toe
movement of the front and rear tires through the
suspension's jounce and rebound travel. As the vehi-
cle's suspension moves up and down, the toe pattern
varies. Toe pattern is critical in controlling the direc-
tional stability of the vehicle while in motion. Front
and rear dynamic toe pattern is preset by the factory
at the time the vehicle is assembled.
It is not necessary to check or adjust front or rear
dynamic toe pattern when doing a normal wheel
alignment. The only time dynamic toe pattern needs
to be checked or adjusted is if the frame of the vehi-
cle has been damaged.
STEERING AXIS INCLINATION (S. A. I.)
Steering axis inclination is the angle between a
true vertical line starting at the center of the tire at
the road contact point and a line drawn through the
center of the upper ball joint (or strut) and the lower
ball joint (Fig. 5). S.A.I. is built into the vehicle and
is not an adjustable angle. If S.A.I. is not within
specifications, a bent or damaged suspension compo-
nent may be the cause.
INCLUDED ANGLE (I. A.)
Included angle is the sum of the S.A.I. angle plus
or minus the camber angle, depending on whether or
not the wheel has positive or negative camber (Fig.
5). If camber is positive, add the camber angle to the
S.A.I. angle. If camber is negative, subtract the cam-
ber angle from the S.A.I. angle. Included angle is not
adjustable, but can be used to diagnose a frame mis-
alignment or bent suspension component (spindle,
strut).
Fig. 4 Toe-Out On Turns
1 - TOE-OUT ON TURNS
Fig. 5 S.A.I. and I.A.
1 - S.A.I.
2 - CAMBER
3 - I.A.
2 - 48 WHEEL ALIGNMENTRS
WHEEL ALIGNMENT (Continued)
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THRUST ANGLE
Thrust angle is the averaged direction the rear
wheels are pointing in relation to the vehicle's center
line (Fig. 6). The presence of negative or positive
thrust angle causes the rear tires to track improperly
to the left or right of the front tires (dog tracking).
²Negative thrust angle means the rear tires are
tracking to the left of the front tires.
²Positive thrust angle means the rear tires are
tracking to the right of the front tires.
Improper tracking can cause undue tire wear, a
lead or pull and a crooked steering wheel. Excessive
thrust angle can usually be corrected by adjusting
the rear wheel toe so that each wheel has one-half of
the total toe measurement.
DIAGNOSIS AND TESTING - SUSPENSION AND STEERING
CONDITION POSSIBLE CAUSES CORRECTION
Front End Whine On Turns 1. Defective wheel bearing 1. Replace wheel bearing
2. Incorrect wheel alignment 2. Check and reset wheel alignment
3. Worn tires 3. Replace tires
Front End Growl Or
Grinding On Turns1. Defective wheel bearing 1. Replace wheel bearing
2. Engine mount grounding 2. Check for motor mount hitting frame rail
and reposition engine as required
3. Worn or broken C/V joint 3. Replace C/V joint
4. Loose wheel lug nuts 4. Verify wheel lug nut torque
5. Incorrect wheel alignment 5. Check and reset wheel alignment
6. Worn tires 6. Replace tires
7. Front strut pin in upper strut mount 7. Replace the front strut upper mount and
bearing
Front End Clunk Or Snap
On Turns1. Loose lug nuts 1. Verify wheel lug nut torque
2. Worn or broken C/V joint 2. Replace C/V joint
3. Worn or loose tie rod 3. Tighten or replace tie rod end
4. Worn or loose ball joint 4. Tighten or replace ball joint
5. Worn/loose control arm bushing 5. Replace control arm bushing
6. Loose stabilizer bar. 6. Tighten stabilizer bar to specified torque
Fig. 6 Thrust Angle
RSWHEEL ALIGNMENT2-49
WHEEL ALIGNMENT (Continued)
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CONDITION POSSIBLE CAUSES CORRECTION
7. Loose strut mount to body
attachment7. Tighten strut attachment to specified
torque
8. Loose crossmember bolts 8. Tighten crossmember bolts to specified
torque
Front End Whine With
Vehicle Going Straight At A
Constant Speed1. Defective wheel bearing 1. Replace wheel bearing
2. Incorrect wheel alignment 2. Check and reset wheel alignment
3. Worn tires 3. Replace tires
4. Worn or defective transaxle gears
or bearings4. Replace transaxle gears or bearings
Front End Growl Or
Grinding With Vehicle
Going Straight At A
Constant Speed1. Engine mount grounding 1. Reposition engine as required
2. Worn or broken C/V joint 2. Replace C/V joint
Front End Whine When
Accelerating Or
Decelerating1. Worn or defective transaxle gears
or bearings1. Replace transaxle gears or bearings
Front End Clunk When
Accelerating Or
Decelerating1. Worn or broken engine mount 1. Replace engine mount
2. Worn or defective transaxle gears
or bearings2. Replace transaxle gears or bearings
3. Loose lug nuts 3. Verify wheel lug nut torque
4. Worn or broken C/V joint 4. Replace C/V joint
5. Worn or loose ball joint 5. Tighten or replace ball joint
6. Worn or loose control arm bushing 6. Replace control arm bushing
7. Loose crossmember bolts 7. Tighten crossmember bolts to specified
torque
8. Worn tie rod end 8. Replace tie rod end
Road Wander 1. Incorrect tire pressure 1. Inflate tires to recommended pressure
2. Incorrect front or rear wheel toe 2. Check and reset wheel toe
3. Worn wheel bearings 3. Replace wheel bearing
4. Worn control arm bushings 4. Replace control arm bushing
5. Excessive friction in steering gear 5. Replace steering gear
6. Excessive friction in steering shaft
coupling6. Replace steering coupler
7. Excessive friction in strut upper
bearing7. Replace strut bearing
Lateral Pull 1. Unequal tire pressure 1. Inflate all tires to recommended
pressure
2. Radial tire lead 2. Perform lead correction procedure
2 - 50 WHEEL ALIGNMENTRS
WHEEL ALIGNMENT (Continued)
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CONDITION POSSIBLE CAUSES CORRECTION
3. Incorrect front wheel camber 3. Check and reset front wheel camber
4. Power steering gear imbalance 4. Replace power steering gear
5. Wheel braking 5. Correct braking condition causing lateral
pull
Excessive Steering Free
Play1. Incorrect Steering Gear Adjustment 1. Adjust Or Replace Steering Gear
2. Worn or loose tie rod ends 2. Replace or tighten tie rod ends
3. Loose steering gear mounting bolts 3. Tighten steering gear bolts to specified
torque
4. Loose or worn steering shaft
coupler4. Replace steering shaft coupler
Excessive Steering Effort 1. Low tire pressure 1. Inflate all tires to recommended
pressure
2. Lack of lubricant in steering gear 2. Replace steering gear
3. Low power steering fluid level 3. Fill power steering fluid reservoir to
correct level
4. Loose power steering pump drive
belt4. Correctly adjust power steering pump
drive belt
5. Lack of lubricant in ball joints 5. Lubricate or replace ball joints
6. Steering gear malfunction 6. Replace steering gear
7. Lack of lubricant in steering coupler 7. Replace steering coupler
STANDARD PROCEDURE
STANDARD PROCEDURE - WHEEL ALIGNMENT
PRE-WHEEL ALIGNMENT INSPECTION
Before any attempt is made to change or correct
the wheel alignment, the following inspection and
necessary corrections must be made to ensure proper
alignment.
(1) Verify that the fuel tank is full of fuel. If the
tank is not full, the reduction in weight will affect
the curb height of the vehicle and the alignment
angles.
(2) The passenger and luggage compartments of
the vehicle should be free of any load that is not fac-
tory equipment.
(3) Check the tires on the vehicle. All tires must be
the same size and in good condition with approxi-
mately the same amount of tread wear. Inflate all
the tires to the recommended air pressure.
(4) Check the front wheel and tire assemblies for
excessive radial runout.
(5) Inspect lower ball joints and all steering link-
age for looseness, binding, wear or damage. Repair as
necessary.(6) Check suspension fasteners for proper torque
and retighten as necessary.
(7) Inspect all suspension component rubber bush-
ings for signs of wear or deterioration. Replace any
faulty bushings or components before aligning the
vehicle.
(8) Check the vehicle's curb height to verify it is
within specifications. Refer to Curb Height Measure-
ment.
WHEEL ALIGNMENT SETUP
(1) Position the vehicle on an alignment rack.
(2) Install all required alignment equipment on
the vehicle per the alignment equipment manufactur-
er's instructions. On this vehicle, a four-wheel align-
ment is recommended.
NOTE: Prior to reading the vehicle's alignment
readouts, the front and rear of vehicle should be
jounced. Induce jounce (rear first, then front) by
grasping the center of the bumper and jouncing
each end of vehicle an equal number of times. The
bumper should always be released when vehicle is
at the bottom of the jounce cycle.
(3) Read the vehicle's current front and rear align-
ment settings. Compare the vehicle's current align-
RSWHEEL ALIGNMENT2-51
WHEEL ALIGNMENT (Continued)
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SUPPORT PLATE - DRUM BRAKE
REMOVAL.............................64
INSTALLATION.........................64
WHEEL CYLINDERS
REMOVAL.............................65
INSPECTION..........................65
INSTALLATION.........................65
PARKING BRAKE
DESCRIPTION
DESCRIPTION........................65
DESCRIPTION - EXPORT...............66
OPERATION...........................66
STANDARD PROCEDURE
STANDARD PROCEDURE - PARKING
BRAKE AUTOMATIC ADJUSTER TENSION
RELEASE...........................66
STANDARD PROCEDURE - PARKING
BRAKE AUTOMATIC ADJUSTER TENSION
RESET.............................67
CABLES - PARKING BRAKE
REMOVAL
REMOVAL - PARKING BRAKE CABLE
(FRONT)............................67
REMOVAL - PARKING BRAKE CABLE
(INTERMEDIATE)......................68
REMOVAL - PARKING BRAKE CABLE
(RIGHT REAR)........................69
REMOVAL - PARKING BRAKE CABLE (LEFT
REAR)..............................70INSTALLATION
INSTALLATION - PARKING BRAKE CABLE
(FRONT)............................71
INSTALLATION - PARKING BRAKE CABLE
(INTERMEDIATE)......................71
INSTALLATION - PARKING BRAKE CABLE
(RIGHT REAR)........................72
INSTALLATION - PARKING BRAKE CABLE
(LEFT REAR).........................72
ADJUSTMENTS
ADJUSTMENT - PARKING BRAKE CABLES . 72
CABLES - PARKING BRAKE (EXPORT)
REMOVAL - FRONT CABLE...............72
INSTALLATION - FRONT CABLE............72
LEVER - PARKING BRAKE
REMOVAL.............................72
INSTALLATION.........................73
LEVER - PARKING BRAKE (EXPORT)
REMOVAL - PARKING BRAKE LEVER AND
FRONT CABLE.......................74
INSTALLATION - PARKING BRAKE LEVER
AND FRONT CABLE...................75
SHOES - PARKING BRAKE
REMOVAL.............................75
INSTALLATION.........................81
ADJUSTMENTS
ADJUSTMENT - PARKING BRAKE SHOES . . 83
BRAKES - BASE
DESCRIPTION
DESCRIPTION - BASE BRAKES
The base brake system consists of the following
components:
²Brake pedal
²Power brake booster
²Master cylinder
²Brake tubes and hoses
²Proportioning valve (non-ABS vehicles only)
²Disc brakes
²Drum brakes
²Brake lamp switch
²Brake fluid level switch
²Parking brakes
Front disc brakes control the braking of the front
wheels; rear braking is controlled by rear drum
brakes or rear disc brakes depending on options.
The hydraulic brake system is diagonally split on
both the non-antilock braking systems and antilock
braking systems. That means the left front and right
rear brakes are on one hydraulic circuit and the right
front and left rear are on the other.For information on the brake lamp switch, (Refer
to 8 - ELECTRICAL/LAMPS/LIGHTING - EXTERI-
OR/BRAKE LAMP SWITCH - DESCRIPTION)
Vehicles equipped with the optional antilock brake
system (ABS) use a system designated Mark 20e. It
is available with or without traction control. This
system shares most base brake hardware used on
vehicles without ABS. ABS components are described
in detail in ANTILOCK BRAKE SYSTEM.
DESCRIPTION - BASE BRAKES (EXPORT)
Four-Wheel Disc Antilock Brakes are standard on
all models.
OPERATION - BASE BRAKES
When a vehicle needs to be stopped, the driver
applies the brake pedal. The brake pedal pushes the
input rod of the power brake booster into the booster.
The booster uses vacuum to ease pedal effort as force
is transferred through the booster to the master cyl-
inder. The booster's output rod pushes in the master
cylinder's primary and secondary pistons applying
hydraulic pressure through the chassis brake tubes
to the brakes at each tire and wheel assembly.
The parking brakes are foot-operated. When
applied, the parking brake lever pulls on cables that
actuate brake shoes at each rear wheel. These shoes
RSBRAKES - BASE5-3
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(9) Depress retainers on rear of adjustable pedal
switch, then remove switch from lower shroud (Fig.
9).
INSTALLATION
(1) Guide adjustable pedal switch wiring through
mounting hole in lower shroud.
(2) Align switch retainers with notches in mount-
ing hole and snap the switch into place (Fig. 9).
(3) Connect adjustable pedal switch wiring connec-
tor along left side of column (Fig. 8).(4) Install the lower shroud with adjustable pedal
switch. Install screws fastening steering column
shrouds to steering column (Fig. 7).
(5) Install knee blocker reinforcement plate (Fig.
6).
(6) Connect parking brake release link to release
handle.
(7) Install data link diagnostic connector to mount-
ing hole in reinforcement plate.
(8) Install lower steering column cover/knee
blocker (Fig. 6).
(9) Install silencer panel below lower steering col-
umn cover/knee blocker.
(10) Connect ground cable to negative post of bat-
tery.
(11) Connect scan tool (DRBIIIt) to data link diag-
nostic connector located below steering column.
(12) Turn ignition key to ON position.
(13) Using scan tool, check for and clear any exist-
ing adjustable pedal fault codes.
(14) Test operation of adjustable pedals, memory
sets and RKE (if equipped). If applicable, reset radio
and clock.
(15) Recheck for any fault codes.
(16) Turn key to OFF and remove scan tool from
vehicle.
PEDAL POSITION SENSOR
DESCRIPTION
The pedal position sensor is part of the adjustable
pedal assembly. It is mounted to the left of the brake
pedal (Fig. 10). It senses the fore and aft position of
the brake pedal.
Fig. 7 Steering Column Shrouds
1 - FIXED SHROUD
2 - UPPER SHROUD
3 - CLOCKSPRING
4 - LOWER SHROUD
5 - STEERING COLUMN
Fig. 8 Pedal Switch Wiring Connector
1 - STEERING COLUMN FIXED SHROUD
2 - BRAKE TRANSMISSION SHIFT INTERLOCK
3 - B.T.S.I. WIRING CONNECTOR
4 - PEDAL SWITCH WIRING CONNECTOR
Fig. 9 Pedal Switch Retainers
1 - LOWER SHROUD INTERIOR
2 - RETAINERS
5 - 12 BRAKES - BASERS
ADJUSTABLE PEDAL SWITCH (Continued)
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DIAGNOSIS AND TESTING - PEDAL POSITION
SENSOR
Refer to Appropriate Diagnostic Information.
REMOVAL
(1) Remove battery ground cable terminal from
battery negative post and isolate.
(2) Under instrument panel, remove silencer panel
below lower steering column cover.
(3) Press release tab to the left (Fig. 11), then
remove bulkhead connector from bracket by pulling it
toward lower steering column cover.(4) Move bulkhead connector toward left side of
vehicle as far as its wires will allow. Do not over-
stress wiring.
(5) Remove two mounting screws securing pedal
position sensor in place (Fig. 12).
(6) Remove pedal position sensor from bracket.
(7) Disconnect wiring connector and remove pedal
position sensor.
INSTALLATION
(1) Connect wiring connector to pedal position sen-
sor.
NOTE: Make sure pin in pedal assembly fits into
slot in sensor carriage when installing sensor.
(2) Place sensor against mounting bracket and into
brake pedal (Fig. 12). Move carriage as necessary to
align slot with pin. Install two mounting screws.
Tighten screws to 7.5 N´m (66 in. lbs.) torque.
(3) Align the bulkhead connector mounting slot
with its bracket and install it, locking it in place.
(4) Install silencer panel below lower steering col-
umn cover.
(5) Connect ground cable to negative post of bat-
tery.
(6) Connect scan tool (DRBIIIt) to data link diag-
nostic connector located below steering column.
(7) Turn ignition key to ON position.
(8) Using scan tool, check for and clear any exist-
ing adjustable pedal fault codes.
(9) Test operation of adjustable pedals, memory
sets (if equipped), and RKE (if equipped). If applica-
ble, reset radio and clock.
(10) Recheck for any fault codes.
Fig. 10 Pedal Position Sensor Location
1 - PEDAL POSITION SENSOR
2 - BRAKE PEDAL
Fig. 11 Bulkhead Connector Release Tab
1 - RELEASE TAB
2 - PEDAL POSITION SENSOR
3 - BULKHEAD CONNECTOR
Fig. 12 Pedal Position Sensor
1 - WIRING CONNECTOR
2 - GEAR BOX
3 - PEDAL POSITION SENSOR
RSBRAKES - BASE5-13
PEDAL POSITION SENSOR (Continued)
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