2002 CHRYSLER CARAVAN wheel

(11) Raise vehicle on hoist.
(12) Remove front wheel/tires and halfshafts.
(13) Remove underbody splash shield.
(14) Drain transaxle fluid into suitable container.
(15) Remove front harness retainer and secure
harness out of way.
(16) Using Tool 6638A, disconnect clutch hydrau-
lic circuit quick connect (located on slave cylinder
tube). Remove clutch slave cylinder by depressing
towards case and rotating counter-clockwise 60É,
while lifting anti-rotation tab out of case slot with
screwdriver (Fig. 21).
(17) Remove engine left mount bracket (Fig. 22).
(18) Remove starter motor (Fig. 23).
(19) Disconnect back-up lamp switch connector.
(20) Position screw jack and wood block to engine
oil pan.
(21) Remove transmission upper mount through-
bolt from left frame rail.
(22) Lower engine/transaxle assembly on screw
jack.
Fig. 21 Slave Cylinder Removal/Installation
1 - MOUNTING HOLE
2 - SLAVE CYLINDER
3 - ACCESS HOLE
4 - NYLON ANTI-ROTATION TAB
5 - QUICK CONNECT
Fig. 22 Left Mount Bracket Removal/Installation
1 - BOLT (2)
2 - MOUNT BRACKET
3 - BOLT (2)
Fig. 23 Starter Motor Removal/Installation
1 - STARTER MOTOR
2 - BOLT (3)
21 - 322 T850 MANUAL TRANSAXLERS
T850 MANUAL TRANSAXLE (Continued)
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(23) Remove four (4) upper mount-to-transaxle
bolts and remove mount (Fig. 24).
(24) Obtain helper and transmission jack. Secure
transaxle to transmission jack and remove transaxle-
to-engine bolts.
(25) Remove transaxle from engine (Fig. 25).
(26) Inspect clutch, clutch release components, and
flywheel.DISASSEMBLY
(1) Remove clutch release lever and bearing (Fig.
26). Inspect release lever pivot balls and replace if
necessary (Fig. 27). Use slide hammer C-3752 and
remover/installer 6891 (Fig. 28) if pivot ball replace-
ment is necessary.
Fig. 25 Transaxle Removal/Installation
1 - TRANSAXLE
2 - BOLT
Fig. 24 Transaxle Upper Mount
1 - MOUNT
2 - BOLT (4)
Fig. 26 Release Bearing and Lever
1 - RELEASE LEVER
2 - RELEASE BEARING
RST850 MANUAL TRANSAXLE21 - 323
T850 MANUAL TRANSAXLE (Continued)
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(11) Install halfshafts and front wheel/tire assem-
blies. (Refer to 3 - DIFFERENTIAL & DRIVELINE/
HALF SHAFT - INSTALLATION)
(12) Lower vehicle.
(13) Install right mount bracket to transaxle (Fig.
80).
(14) Connect gearshift cables to shift levers/cover
assembly (Fig. 81). Install cables into position at
mount bracket and secure with retaining clips.
(15) Connect battery cables.
(16) Check transaxle fluid and engine coolant lev-
els. Adjust if necessary. (Refer to 21 - TRANSMIS-
SION/TRANSAXLE/MANUAL/FLUID - STANDARD
PROCEDURE)
Fig. 80 Transaxle Right Mount and Bracket
1 - MOUNT BRACKET
2 - BOLT (3)
3 - MOUNT
4 - BOLT (1)
Fig. 81 Gearshift Cables at Transaxle
1 - SELECTOR CABLE
2 - CABLE RETAINER
3 - CABLE RETAINER
4 - CROSSOVER CABLE
5 - MOUNT BRACKET
RST850 MANUAL TRANSAXLE21 - 339
T850 MANUAL TRANSAXLE (Continued)
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(7) Install starter motor into position (Fig. 84).
Install and torque bolts to 54 N´m (40 ft. lbs.).
(8) Install engine front mount bracket. Install and
torque bracket-to-transaxle bolts to 102 N´m (75 ft.
lbs.). Install and torque bracket-to-engine bolts to 68
N´m (50 ft. lbs.). Torque through-bolt and nut to 68
N´m (50 ft. lbs.).
(9) Install clutch slave cylinder into position, not-
ing orientation of different sized lugs (Fig. 85). Whiledepressing inward, rotate slave cylinder clockwise
60É into position until nylon locating tab rests within
transaxle case cutout, and hydraulic tube is vertical.
Connect ªquick-connectº connection until an audible
ªclickº is heard. Verify connection by pulling outward
on connection.
(10) Install underbody splash panel.
(11) Install halfshafts and front wheel/tire assem-
blies. (Refer to 3 - DIFFERENTIAL & DRIVELINE/
HALF SHAFT - INSTALLATION)
(12) Lower vehicle.
(13) Install right mount bracket to transaxle (Fig.
86).
Fig. 85 Slave Cylinder Removal/Installation
1 - MOUNTING HOLE
2 - SLAVE CYLINDER
3 - ACCESS HOLE
4 - NYLON ANTI-ROTATION TAB
5 - QUICK CONNECT
Fig. 84 Starter Motor Removal/Installation
1 - STARTER MOTOR
2 - BOLT (3)
Fig. 86 Transaxle Right Mount and Bracket
1 - MOUNT BRACKET
2 - BOLT (3)
3 - MOUNT
4 - BOLT (1)
RST850 MANUAL TRANSAXLE21 - 341
T850 MANUAL TRANSAXLE (Continued)
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BACK-UP LAMP SWITCH
REMOVAL
(1) Raise vehicle on hoist.
(2) Disconnect back-up lamp switch connector.
(3) Remove back-up lamp switch (Fig. 95).
INSTALLATION
(1) Install back-up lamp switch (Fig. 95) and
torque to 23 N´m (17 ft. lbs.) using Tool 8827.
(2) Connect back-up lamp switch connector.
(3) Lower vehicle.
DIFFERENTIAL
DESCRIPTION
The T850 differential is a conventional open
design. It consists of a ring gear and a two-piece dif-
ferential case. The differential case contains the pin-
ion and side gears, three floating pinion shafts, and a
pinion shaft retaining ring (Fig. 96). The differential
case is supported in the transaxle by tapered roller
bearings.
OPERATION
The differential assembly is driven by the interme-
diate shaft via the ring gear. The ring gear drives the
differential case, and the case drives the halfshafts
through the differential gears. The differential pinion
and side gears are supported in the case by pinion
shafts and thrust washers. Differential pinion and
side gears make it possible for front wheels to rotate
at different speeds while cornering.
Fig. 95 Back-Up Lamp Switch
1 - BACK-UP LAMP SWITCH
Fig. 96 Differential Assembly
1 - RING GEAR
2 - SUPPORT PLATE
3 - SIDE GEAR (2)
4 - PINION GEAR (4)
5 - BOLT (12)
6 - PINION SHAFT (2-SHORT)
7 - PINION SHAFT (1-LONG)
8 - THRUST WASHER (2)
9 - RETAINING RING
10 - DIFFERENTIAL CASE
RST850 MANUAL TRANSAXLE21 - 349
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TIRES/WHEELS
TABLE OF CONTENTS
page page
TIRES/WHEELS
DIAGNOSIS AND TESTING - TIRE AND
WHEEL VIBRATION.....................1
STANDARD PROCEDURE
STANDARD PROCEDURE - TIRE AND
WHEEL BALANCE......................5
STANDARD PROCEDURE - TIRE AND
WHEEL MATCH MOUNTING..............5
STANDARD PROCEDURE - TIRE AND
WHEEL ROTATION.....................7
REMOVAL
REMOVAL - TIRE AND WHEEL ASSEMBLY
(ALUMINUM WHEEL)....................7
REMOVAL - TIRE AND WHEEL ASSEMBLY
(STEEL WHEEL).......................7
INSTALLATION
INSTALLATION - TIRE AND WHEEL
ASSEMBLY (ALUMINUM WHEEL)..........8
INSTALLATION - TIRE AND WHEEL
ASSEMBLY (STEEL WHEEL)..............8
TIRE PRESSURE MONITORING (TPM)
DESCRIPTION..........................9
OPERATION............................9
SENSOR - TPM
DESCRIPTION.........................10
OPERATION...........................10
CAUTION.............................10
DIAGNOSIS AND TESTING - TIRE PRESSURE
SENSOR............................10
STANDARD PROCEDURE - TIRE PRESSURE
SENSOR RETRAIN....................10
REMOVAL.............................11
INSTALLATION.........................11
TIRES
DESCRIPTION
DESCRIPTION - TIRE..................13
DESCRIPTION - RADIAL-PLY TIRES.......13DESCRIPTION - REPLACEMENT TIRES....14
DESCRIPTION - SPARE TIRE
(TEMPORARY).......................14
DIAGNOSIS AND TESTING
DIAGNOSIS AND TESTING - TIRE NOISE . . . 14
DIAGNOSIS AND TESTING - TIRE/VEHICLE
LEAD...............................14
DIAGNOSIS AND TESTING - TIRE WEAR
PATTERNS..........................14
DIAGNOSIS AND TESTING - TREAD WEAR
INDICATORS.........................14
STANDARD PROCEDURE
STANDARD PROCEDURE - TIRE INFLATION
PRESSURES.........................14
STANDARD PROCEDURE - TIRE
PRESSURE FOR HIGH SPEED
OPERATION.........................17
STANDARD PROCEDURE - TIRE LEAK
REPAIRING..........................17
CLEANING - TIRES.....................17
WHEELS
DESCRIPTION - WHEEL..................17
DIAGNOSIS AND TESTING - WHEEL
INSPECTION.........................18
CLEANING - ALUMINUM WHEEL CARE......18
SPECIFICATIONS
WHEEL.............................19
WHEEL COVER
DESCRIPTION.........................19
REMOVAL.............................19
INSTALLATION.........................19
WHEEL MOUNTING STUDS - FRONT
REMOVAL.............................20
INSTALLATION.........................21
WHEEL MOUNTING STUDS - REAR
REMOVAL.............................21
INSTALLATION.........................22
TIRES/WHEELS
DIAGNOSIS AND TESTING - TIRE AND WHEEL
VIBRATION
Tire and wheel imbalance, runout and force varia-
tion can cause vehicles to exhibit steering wheel
vibration.
VISUAL INSPECTION
Visual inspection of the vehicle is recommended
prior to road testing or performing any other proce-
dure. Raise vehicle on a suitable hoist. (Refer to
LUBRICATION & MAINTENANCE/HOISTING -
STANDARD PROCEDURE)
RSTIRES/WHEELS22-1
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Inspect for the following:
²Verify correct (OEM) wheel and tire, as well as
correct wheel weights. Aluminum wheels require
unique wheel weights. They are designed to fit the
contour of the wheel (Fig. 1).
²Inspect tires and wheels for damage, mud pack-
ing and unusual wear; correct as necessary.
²Check and adjust tire air pressure to the pres-
sure listed on the label attached to the rear face of
the driver's door.
ROAD TEST
Road test vehicle on a smooth road for a least five
miles to warm tires (remove any flat spots). Lightly
place hands on steering wheel at the 10:00 and 2:00
positions while slowly sweeping up and down from 90 to
110 km/h (55 to 70 mph) where legal speed limits allow.
Observe the steering wheel for:
²Visual Nibble (oscillation: clockwise/counter-
clockwise, usually due to tire imbalance)
²Visual Buzziness (high frequency, rapid vibra-
tion up and down)
To rule out vibrations due to brakes or powertrain:
²Lightly apply brakes at speed; if vibration occurs
or is enhanced, vibration is likely due to causes other
than tire and wheel assemblies.
²
Shift transmission into neutral while vibration is
occurring; if vibration is eliminated, vibration is likely
due to causes other than tire and wheel assemblies.
For brake vibrations, (Refer to 5 - BRAKES -
BASE/HYDRAULIC/MECHANICAL/ROTORS -
DIAGNOSIS AND TESTING).
For powertrain vibrations, (Refer to 3 - DIFFEREN-
TIAL & DRIVELINE - DIAGNOSIS AND TESTING).
For tire and wheel assembly vibrations, continue
with this diagnosis and testing procedure.
TIRE AND WHEEL BALANCE
(1) Balance the tire and wheel assemblies as nec-
essary following the wheel balancer manufacturer's
instructions and using the information listed in Stan-
dard Procedure - Tire And Wheel Balance. (Refer to
22 - TIRES/WHEELS - STANDARD PROCEDURE)
(2) Road test the vehicle for at least 5 miles, fol-
lowing the format described in Road Test.
(3) If the vibration persists, continue with this
diagnosis and testing procedure.
TIRE AND WHEEL RUNOUT/MATCH MOUNTING
(1)System Radial Runout.This on-the-vehicle
system check will measure the radial runout includ-
ing the hub, wheel and tire.
(a) Raise vehicle so tires clear floor. (Refer to
LUBRICATION & MAINTENANCE/HOISTING -
STANDARD PROCEDURE)
(b) Apply masking tape around the circumfer-
ence of the tire in the locations to be measured
(Fig. 2). Do not overlap the tape.
(c) Check system runout using Dial Indicator
Set, Special Tool C-3339A with 25-W wheel, or
equivalent. Place the end of the indicator against
each taped area (one at a time) (Fig. 2) and rotate
the tire and wheel. System radial runout should
not exceed 0.76 mm (0.030 inch) with no tread
ªdipsº or ªsteps.º Tread ªdipsº and ªstepsº can be
identified by spikes of the dial indicator gauge.
²Tread9dips9; Rapid decrease then increase in
dial indicator reading over 101.6 mm (4.0 inch) of
tread circumference.
²Tread9steps9; Rapid decrease or increase in dial
indicator reading over 101.6 mm (4.0 inch) of tread
circumference.
(d) If system runout is excessive, re-index the
tire and wheel assembly on the hub. Remove
assembly from vehicle and install it back on the
hub two studs over from original mounting posi-
tion. If re-indexing the tire and wheel assembly
corrects or reduces system runout, check hub
runout and repair as necessary (Refer to 5 -
BRAKES - BASE/HYDRAULIC/MECHANICAL/
ROTORS - DIAGNOSIS AND TESTING).
(e) If system runout is still excessive, continue
with this diagnosis and testing procedure.
(2)Tire and Wheel Assembly Radial Runout.
This radial runout check is performed with the tire
and wheel assembly off the vehicle.
(a) Remove tire and wheel assembly from vehicle
and install it on a suitable wheel balancer.
(b) Check system runout using Dial Indicator
Set, Special Tool C-3339A with 25-W wheel, or
equivalent. Place the end of the indicator against
each taped area (one at a time) (Fig. 2) and rotate
the tire and wheel. Radial runout should not
Fig. 1 Aluminum Wheel Weight
1 - TIRE
2 - WHEEL
3 - WHEEL WEIGHT
22 - 2 TIRES/WHEELSRS
TIRES/WHEELS (Continued)
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exceed 0.76 mm (0.030 inch) with no tread ªdipsº
or ªsteps.º Tread ªdipsº and ªstepsº can be identi-
fied by spikes of the dial indicator gauge.
(c) If runout exceeds limits, mark the original
location of the tire on the wheel at the valve stem
(Fig. 3). Also, mark the tire and wheel to indicate
the original high spot of the assembly and record
the runout measurement.
(d) If runout exceeds limits, the tire will need to
be dismounted from the wheel to verify wheel vs.
tire contribution. Refer to Wheel Runout below.
(3)Lateral Runout.Lateral runout for the vehi-
cle system as well as the tire and wheel assembly
should be less than 0.76 mm (0.030 inch). The same
procedure and theory described for radial runout can
also be applied to identify and reduce lateral runout.
(4)Wheel Runout.This runout check is per-
formed as follows:
(a) Dismount the tire from the wheel.
(b) Mount the wheel back on the wheel balancer.
(c) Measure radial runout of the wheel at the
tire bead seat (Fig. 4). Runout should not exceed
0.254 mm (0.010 inch) for aluminum wheels and
0.508 mm (.020 inch) for steel wheels. Replace the
wheel if it exceeds the limit.
(d) Measure lateral runout of the wheel at the
tire bead seat (Fig. 5). Runout should not exceed
0.762 mm (0.030 inch) for all wheels. Replace the
wheel if it exceeds the limit.
(5)Match Mounting.If the wheel runout is
within specifications, tire and wheel assembly runout
can be improved by re-indexing (match mounting)
the tire to the wheel as described below.
Fig. 2 Radial Runout Measurement
1 - MASKING TAPE
2 - DIAL INDICATOR
Fig. 3 Marking Tire
1 - REFERENCE MARK
2 - EXAMPLE HIGH SPOT ON TIRE
3 - WHEEL
4 - VALVE STEM
Fig. 4 Checking Radial Runout Of Wheel
1 - MOUNTING CONE
2 - SPINDLE SHAFT
3 - WING NUT
4 - PLASTIC CUP
5 - DIAL INDICATOR
6 - WHEEL
7 - DIAL INDICATOR
RSTIRES/WHEELS22-3
TIRES/WHEELS (Continued)
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