2002 CHRYSLER CARAVAN wheel torque

SUSPENSION
TABLE OF CONTENTS
page page
FRONT SUSPENSION.....................1
REAR SUSPENSION......................26WHEEL ALIGNMENT.....................46
FRONT SUSPENSION
TABLE OF CONTENTS
page page
FRONT SUSPENSION
DESCRIPTION - FRONT SUSPENSION.......2
OPERATION - FRONT SUSPENSION.........2
STANDARD PROCEDURE - LUBRICATION....2
SPECIFICATIONS
FRONT SUSPENSION FASTENER TORQUE . . 3
SPECIAL TOOLS
FRONT SUSPENSION...................3
BUSHINGS
REMOVAL - STABILIZER BAR CUSHION......4
INSTALLATION - STABILIZER BAR CUSHION . . . 4
HUB / BEARING
DESCRIPTION..........................4
OPERATION............................4
DIAGNOSIS AND TESTING - HUB AND
BEARING............................5
REMOVAL.............................5
INSTALLATION..........................6
KNUCKLE
DESCRIPTION..........................6
OPERATION............................6
REMOVAL - STEERING KNUCKLE...........7
INSPECTION - STEERING KNUCKLE.........8
INSTALLATION - STEERING KNUCKLE.......9
LOWER BALL JOINT
DESCRIPTION.........................10
OPERATION...........................10
DIAGNOSIS AND TESTING - LOWER BALL
JOINT..............................10
LOWER BALL JOINT SEAL BOOT
DESCRIPTION - EXPORT.................10
REMOVAL
REMOVAL - BALL JOINT SEAL BOOT......11
REMOVAL - EXPORT...................11INSTALLATION
INSTALLATION - BALL JOINT SEAL BOOT . . 11
INSTALLATION - EXPORT...............12
LOWER CONTROL ARM
DESCRIPTION.........................12
OPERATION...........................12
REMOVAL - LOWER CONTROL ARM........12
DISASSEMBLY
DISASSEMBLY - LOWER CONTROL ARM
(REAR BUSHING - STANDARD)..........13
DISASSEMBLY - LOWER CONTROL ARM
(REAR BUSHING - HYDRO).............13
INSPECTION - LOWER CONTROL ARM......14
ASSEMBLY
ASSEMBLY - LOWER CONTROL ARM
(REAR BUSHING - STANDARD)..........14
ASSEMBLY - LOWER CONTROL ARM
(REAR BUSHING - HYDRO).............15
INSTALLATION - LOWER CONTROL ARM....15
STABILIZER BAR
DESCRIPTION.........................16
OPERATION...........................16
REMOVAL.............................17
INSPECTION..........................17
INSTALLATION.........................18
STRUT
DESCRIPTION - STRUT ASSEMBLY.........19
OPERATION - STRUT ASSEMBLY..........19
DIAGNOSIS AND TESTING - STRUT
ASSEMBLY..........................20
REMOVAL - STRUT ASSEMBLY............20
DISASSEMBLY - STRUT ASSEMBLY........22
ASSEMBLY - STRUT ASSEMBLY...........23
INSTALLATION - STRUT ASSEMBLY........25
RSSUSPENSION2-1
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SPECIFICATIONS
FRONT SUSPENSION FASTENER TORQUE
DESCRIPTION N´mFt.
Lbs.In.
Lbs.
Ball Joint Nut 108 80 Ð
Cradle Crossmember Mounting
Bolts163 120 Ð
Cradle Crossmember
Reinforcement Bolts - Size M-14153 113 Ð
Cradle Crossmember
Reinforcement Bolt - Size M-12106 78 Ð
Cradle Crossmember
Reinforcement Bolts - Size M-1061 45 Ð
Disc Brake Adapter Mounting
Bolts169 125 Ð
Hub And Bearing Mounting Bolts 65 45 Ð
Hub And Bearing Axle Hub Nut 244 180 Ð
Lower Control Arm Pivot Bolt 183 135 Ð
Stabilizer Bar Bushing Retainer
Bolts68 50 Ð
Stabilizer Bar Link Nuts 88 65 Ð
Strut Body/Tower Mounting Nuts 28 21 250
Strut Clevis-to-Knuckle Nuts 81
+
90É
turn60
+
90É
turnÐ
Strut Shaft Nut 100 75 Ð
Tie Rod Adjuster Jam Nut 75 55 Ð
Tie Rod Steering Arm Nut 75 55 Ð
Wheel Mounting (Lug) Nuts 135 100 Ð
SPECIAL TOOLS
FRONT SUSPENSION
Puller C-3894A
Press, Ball Joint C-4212F
Installer, Ball Joint 6758
Wrench, Strut Rod Nut 6864
REMOVER/INSTALLER, BUSHING 8460
REMOVER/INSTALLER, BALL JOINT 8490
RSFRONT SUSPENSION2-3
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BUSHINGS
REMOVAL - STABILIZER BAR CUSHION
(1) Raise Vehicle. Refer to Hoisting in Lubrication
and Maintenance.
(2) Remove the 2 bolts fastening the emission leak
detection pump to the cradle crossmember reinforce-
ment.
(3) Move the leak detection pump to the side
allowing access to the stabilizer bar cushion retain-
ers.
(4) Remove the nut and bolt securing each stabi-
lizer bar cushion retainer to the cradle crossmember
(Fig. 2) and remove the retainers.
(5) Remove each stabilizer bar cushion from the
stabilizer bar by opening the slit in the cushion and
peeling it off the stabilizer bar.
INSTALLATION - STABILIZER BAR CUSHION
(1) Install each new cushion on stabilizer bar by
spreading cushion at slit and forcing it onto stabilizer
bar.
NOTE: Cushions must be installed on stabilizer bar
so the square corner of the bushing will be down
and slit in cushion will be facing the rear of the
vehicle when the stabilizer bar is installed (Fig. 3).
(2) Place stabilizer bar into mounted position with
cushions properly aligned.
(3) Hook each retainer into cradle crossmember
mounting hole and over cushion.(4) Install each mounting bolt from rear of cradle
crossmember through retainer. Install the two nuts
and tighten to 68 N´m (50 ft. lbs.) torque.
(5) Reattach emission leak detection pump to cra-
dle crossmember reinforcement with two mounting
bolts.
(6) Lower the vehicle.
HUB / BEARING
DESCRIPTION
The front wheel bearing and front wheel hub of
this vehicle are a hub and bearing unit type assem-
bly (Unit III). This unit combines the front wheel
mounting hub (flange) and the front wheel bearing
into a sealed one-piece unit. The hub and bearing is
mounted to the center of the steering knuckle (Fig.
1). It is retained by four mounting bolts accessible
from the inboard side of the steering knuckle. The
hub flange has five wheel mounting studs.
The wheel mounting studs used to mount the tire
and wheel to the vehicle are the only replaceable
components of the hub and bearing assembly. Other-
wise, the hub and bearing is serviced only as a com-
plete assembly.
OPERATION
The hub and bearing has internal bearings that
allow the hub to rotate with the driveshaft, along
with the tire and wheel. The five wheel mounting
studs mount the tire and wheel, and brake rotor to
the vehicle.
Fig. 2 Front Stabilizer Bar Cushion Retainers
1 - STEERING GEAR
2 - STABILIZER BAR
3 - RAISED BEAD
4 - FRONT CRADLE CROSSMEMBER
5 - RETAINERS
Fig. 3 Correctly Installed Stabilizer Bar Cushion
1 - SLIT IN SWAY BAR BUSHING.
2 - SQUARE CORNER
3-SWAYBAR
4 - SWAY BAR ISOLATOR BUSHING
2 - 4 FRONT SUSPENSIONRS
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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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(7) If equipped with antilock brakes, install wheel
speed sensor and mounting bolt on steering knuckle
(Fig. 13). Tighten the speed sensor bolt to a torque of
7 N´m (60 in. lbs.).
(8) Install brake rotor on hub and bearing (Fig. 9).
(9) Install disc brake caliper and adapter assembly
on steering knuckle. Install adapter amounting bolts
and tighten to 169 N´m (125 ft. lbs.).
(10) Clean any debris from the threads of the
outer C/V joint stub axle.
(11) Install the washer and hub nut on stub axle.
(12) Have a helper apply the vehicle's brakes to
keep hub from turning, then tighten hub nut to a
torque of 244 N´m (180 ft. lbs.).
(13) Install the spring wave washer on the end of
the stub axle.
(14) Install the hub nut lock, and anewcotter pin
(Fig. 8). Wrap cotter pin prongs tightly around the
hub nut lock.
(15) Install wheel and tire assembly. Install and
tighten the wheel mounting nuts in proper sequence
until all nuts are torqued to half the required speci-
fication. Then repeat the tightening sequence to the
full specified torque of 135 N´m (100 ft. lbs.).
(16) Lower vehicle.
(17) Set front wheel alignment camber and toe as
necessary. (Refer to 2 - SUSPENSION/WHEEL
ALIGNMENT - STANDARD PROCEDURE)
LOWER BALL JOINT
DESCRIPTION
The ball joint is an integral part of the lower con-
trol arm (Fig. 1). The ball joint has a tapered stud
that is pressed into the aluminum knuckle. The ball
joint stud is threaded on the end for a retainer nut.
The ball joint has a non-vented seal boot. The seal
boot has an integrated heat shield.
The ball joint used in the lower control arm of this
vehicle is a sealed-for-life ball joint and requires no
maintenance lubrication. The ball joint has been
lubricated-for-life during the manufacturing process.
A special fitting cap is installed on the fill port. This
cap must not be removed and replaced with a com-
mon zirc fitting. The special cap is there to eliminate
the possibility of lubrication latter during the ball
joints life, thus damaging the non-vented seal boot.
NOTE: The ball joint does not require any type of
additional lubrication for the life of the vehicle. No
attempt should be made to ever add any lubrication
to the lower ball joint.
OPERATION
The ball joint is a pivotal joint on the lower control
arm that allows the knuckle to move up and down,
and turn with ease.
DIAGNOSIS AND TESTING - LOWER BALL
JOINT
With the weight of the vehicle resting on the road
wheels, grasp the special fitting cap on the bottom of
the ball joint and with no mechanical assistance or
added force, attempt to rotate the grease fitting.
If the ball joint is worn, the grease fitting will
rotate easily. If movement is noted, replacement of
the control arm is recommended.
LOWER BALL JOINT SEAL
BOOT
DESCRIPTION - EXPORT
The lower ball joint seal boot is a two piece unit. It
consists of the seal boot, plus a separate shield that
is located in a groove at the top of the seal boot.
NOTE: The seal boot should only be replaced if
damaged during vehicle service. The entire lower
control arm should be replaced if the joint has been
contaminated.
Fig. 16 Correctly Installed Eccentric Attaching Bolt
1 - STEERING KNUCKLE
2 - FLANGED BOLT IN TOP HOLE
3 - CAM BOLT IN BOTTOM HOLE
4 - STRUT CLEVIS BRACKET
2 - 10 FRONT SUSPENSIONRS
KNUCKLE (Continued)
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(2) Install NEW pivot bolt attaching front bushing
of lower control arm to front suspension cradle cross-
member (Fig. 29).Do not tighten or torque pivot
bolt at this time.
(3) Install the reinforcement on the front suspen-
sion cradle crossmember and install the bolts attach-
ing the reinforcement to the cradle crossmember
(Fig. 22). Tighten the M-14 size bolts to a torque of
153 N´m (113 ft. lbs.). Tighten the M-12 size bolts to
a torque of 106 N´m (78 ft. lbs.).
(4) Install the lower control arm rear bushing
retainer bolts through reinforcement on each side of
each lower control arm rear bushing. Tighten these
M-10 size bolts to a torque of 61 N´m (45 ft. lbs.).
(5) Install the two bolts and bushings attaching
the reinforcement and rear of cradle crossmember to
body of vehicle (Fig. 22). Tighten bolts to a torque of
163 N´m (120 ft. lbs.).
(6) Install the power steering cooler (Fig. 21).
Tighten bolts to a torque of 11 N´m (100 in. lbs.).
(7) Reinstall steering knuckle, brake rotor and cal-
iper. (Refer to 2 - SUSPENSION/FRONT/KNUCKLE
- INSTALLATION)
CAUTION: When locating jack stands under lower
control arms, do not place the jack stands under
the ball joints (Fig. 30).
(8) Position jack stands under the lower control
arms as close to the ball joints as possible (Fig. 30).
Lower the vehicle onto the jack stands until the jack
stands are supporting the total weight of the vehicle.
(9) Tighten front lower control arm pivot bolt to a
torque of 183 N´m (135 ft. lbs.).(10) Install the wheel and tire assembly. Install
and 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.).
(11) Raise vehicle, remove jack stands and lower
vehicle to the ground.
(12) Perform front wheel alignment as necessary.
(Refer to 2 - SUSPENSION/WHEEL ALIGNMENT -
STANDARD PROCEDURE)
STABILIZER BAR
DESCRIPTION
The stabilizer bar interconnects both front struts of
the vehicle and is attached to the front crossmember
(Fig. 1) .
Attachment of the stabilizer bar to the front cross-
member is through 2 rubber-isolator cushion bush-
ings and retainers. A double ball jointed stabilizer
bar link is used to attach each end of the stabilizer
bar to the front strut assemblies. All parts of the sta-
bilizer bar are replaceable as individual components.
The stabilizer bar to front crossmember cushion
bushings are split for easy removal and installation.
The split in the bushings should be positioned toward
the rear of the vehicle, with the square corner facing
down, when the stabilizer bar is installed.
OPERATION
Jounce and rebound movements affecting one
wheel are partially transmitted to the opposite wheel
of the vehicle through the stabilizer bar. This helps
Fig. 29 Lower Control Arm Bushing Pivot Bolt
Correctly Installed
1 - PIVOT BOLT
2 - LOWER CONTROL ARM
3 - FRONT SUSPENSION CRADLE CROSSMEMBER
Fig. 30 Jack Stands Supporting Vehicle Weight
1 - LOWER CONTROL ARMS
2 - BALL JOINT
3 - JACK STANDS
4 - BALL JOINT
2 - 16 FRONT SUSPENSIONRS
LOWER CONTROL ARM (Continued)
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(12) Slowly release the tension from the coil spring
by backing off the compressor drive fully. As the ten-
sion is relieved, make sure the upper mount, pivot
bearing and upper seat are align properly. Remove
the clamp from the lower end of the coil spring and
strut. Push back the spring compressor upper and
lower hooks, then remove the strut assembly from
the spring compressor.
(13) Install strut assembly on the vehicle. (Refer to
2 - SUSPENSION/FRONT/STRUT - INSTALLA-
TION)
INSTALLATION - STRUT ASSEMBLY
CAUTION: Front strut coil springs are side-oriented.
When installing a strut assembly, make sure the
strut being installed has the correct coil spring for
that side of the vehicle. Springs on the left side of
the vehicle have a left-hand wind top-to-bottom
while springs on the right side have a right-hand
wind top-to-bottom (Fig. 49). Do not interchange the
two sides.
(1) Install strut assembly into strut tower, aligning
and installing the 3 studs on the upper strut mount
into the holes in shock tower. Install the 3 upper
strut mount attaching nut/washer assemblies (Fig.43). Then using a crow foot. tighten the 3 attaching
nuts to a torque of 28 N´m (250 in. lbs.).
CAUTION: The steering knuckle to strut assembly
attaching bolts are serrated and must not be turned
during installation. Install nuts while holding bolts
stationary in the steering knuckles.
NOTE: The strut clevis-to-steering knuckle bolts are
installed differently on each side of the vehicle. Left
hand side bolts are to be installed from vehicle rear
to front. Right side bolts are to be installed from
vehicle front to rear.
(2) Align strut assembly with steering knuckle.
Position arm of steering knuckle into strut assembly
clevis bracket. Align the strut assembly clevis
bracket mounting holes with the steering knuckle
mounting holes. Install the 2 strut assembly to steer-
ing knuckle attaching bolts (Fig. 42).If strut assem-
bly is attached to steering knuckle using a cam
bolt, the cam bolt must be installed in the lower
slotted hole on strut clevis bracket.Tighten the
strut clevis-to-steering knuckle attaching bolts to a
torque of 81 N´m (60 ft. lbs.) plus an additional 1/4
(90É) turn after specified torque is met.
(3) Install the stabilizer bar link mounting stud
through the bracket on the strut assembly (Fig. 41).
CAUTION: When installing the nut on the mounting
stud of the stabilizer bar link, do not allow the stud
to rotate in it's socket. Hold the stud from rotating
by placing an open-end wrench on the flat
machined into the stud (Fig. 41).
(4) Hand thread the nut on the end of the stabi-
lizer bar link stud. Hold the stud from turning by
placing an open-end wrench on the flat machined
into the link's mounting stud, then tighten the nut
while holding the wrench in place (Fig. 41). Tighten
the nut to a torque of 88 N´m (65 ft. lbs.).
(5) Install the hydraulic brake hose and speed sen-
sor cable routing brackets on the strut assembly
brackets (Fig. 40). Tighten the routing bracket
attaching bolts to a torque of 13 N´m (10 ft. lbs.).
(6) Install the wheel/tire assembly on the vehicle.
(7) Install and tighten the wheel mounting stud
nuts in proper sequence until all nuts are torqued to
half specification. Then repeat the tightening
sequence to the full specified torque of 135 N´m (100
ft. lbs.).
Fig. 50 Components Lined Up
1 - IMAGINARY VERTICAL LINE
2 - CLEVIS BRACKET
3 - END OF COIL SPRING
4 - NOTCH IN UPPER SPRING SEAT
RSFRONT SUSPENSION2-25
STRUT (Continued)
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REAR SUSPENSION
TABLE OF CONTENTS
page page
REAR SUSPENSION
DESCRIPTION - REAR SUSPENSION.......26
OPERATION - REAR SUSPENSION.........27
SPECIFICATIONS
REAR SUSPENSION FASTENER TORQUE . . 28
SPECIAL TOOLS
REAR SUSPENSION...................28
BUSHINGS
REMOVAL - LEAF SPRING FRONT BUSHING . 29
INSTALLATION - LEAF SPRING FRONT
BUSHING...........................29
HUB / BEARING
DESCRIPTION.........................30
OPERATION...........................31
DIAGNOSIS AND TESTING - HUB AND
BEARING............................31
REMOVAL.............................31
INSTALLATION.........................33
JOUNCE BUMPER
DESCRIPTION.........................36
OPERATION...........................36
REMOVAL
REMOVAL - AWD AND HEAVY DUTY......36
REMOVAL - FRONT-WHEEL-DRIVE.......36
INSTALLATION
INSTALLATION - AWD AND HEAVY DUTY . . . 36
INSTALLATION - FRONT-WHEEL-DRIVE....36
SHOCK ABSORBER
DESCRIPTION.........................37
OPERATION...........................37
REMOVAL - SHOCK ABSORBER...........37
DISASSEMBLY - SHOCK ABSORBER (UPPER
BUSHING)...........................37ASSEMBLY - SHOCK ABSORBER (UPPER
BUSHING)...........................38
INSTALLATION - SHOCK ABSORBER........38
SPRING - AWD
DESCRIPTION.........................38
OPERATION...........................38
REMOVAL - AWD.......................38
INSTALLATION - AWD....................39
SPRING - FWD
DESCRIPTION.........................40
OPERATION...........................40
REMOVAL - FWD.......................40
INSTALLATION - FWD...................41
SPRING MOUNTS - FRONT
REMOVAL.............................42
INSTALLATION.........................43
SPRING MOUNTS - REAR
REMOVAL.............................43
INSTALLATION.........................44
STABILIZER BAR
DESCRIPTION.........................44
OPERATION...........................44
REMOVAL
REMOVAL - AWD......................44
REMOVAL - FWD.....................44
INSTALLATION
INSTALLATION - AWD..................44
INSTALLATION - FWD..................45
TRACK BAR
DESCRIPTION.........................45
OPERATION...........................45
REMOVAL.............................45
INSTALLATION.........................45
REAR SUSPENSION
DESCRIPTION - REAR SUSPENSION
The rear suspension design on this vehicle uses
leaf springs, and a tube and casting axle (Fig. 1) (Fig.
2). The leaf springs used on the rear suspension of
this vehicle are of either a mono-leaf or multi-leaf
design.
There are 2 different rear suspension designs
available:
²Front-Wheel-Drive
²All-Wheel-Drive
The rear axle used on Front-Wheel-Drive applica-
tions of this vehicle is mounted to the rear leafsprings using isolator bushings at the axle mounting
brackets.
The rear axle used on All-Wheel-Drive applications
of this vehicle is also mounted to the rear leaf
springs, but does not use isolator bushings between
the rear axle and the leaf springs.
Each side of the rear suspension consists of these
major components:
²Leaf spring
²Jounce bumper
²Shock absorber
²Hub and bearing
²Track bar (one per suspension)
²Stabilizer bar (one per suspension)
2 - 26 REAR SUSPENSIONRS
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