2003 CHRYSLER CARAVAN transmission

every 77 000 km (48,000 miles) if the vehicle is usu-
ally operated under one or more of the conditions
marked with anL.
²
Day or night temperatures are below 0É C (32É F).
²Stop and go driving.
²Extensive engine idling.
²Driving in dusty conditions.
²Short trips of less than 16 km (10 miles).²
More than 50% of your driving is at sustained high
speeds during hot weather, above 32É C (90É F).L
²Trailer towing.L
²Taxi, police, or delivery service (commercial ser-
vice).L
²Off-road or desert operation.
²If equipped for and operating with E-85
(ethanol) fuel.
Kilometers 5 000 10 000 14 000 19 000 24 000 29 000
(Miles) (3,000 ) (6,000 ) (9,000) (12,000) (15,000) (18,000)
Change engine oil and engine oil filter.XXXXX X
Inspect the brake linings. X X
Inspect the engine air cleaner filter, replace
if necessary. *XXXX X
Replace theengine air cleaner filter.*X
Inspect and adjust the power steering pump
belt tension on 2.4 liter engines.X
Inspect the generator belt on 2.4 liter
engines, replace if necessary.X
Change the All Wheel Drive (AWD) power
transfer unit fluid. (See note at the end of
this chart)X
Replace the air conditioning filter. X
Kilometers 34 000 38 000 43 000 48 000 53 000 58 000
(Miles) (21,000) (24,000) (27,000) (30,000) (33,000) (36,000)
Change engine oil and engine oil filter.XXXXX X
Inspect the brake linings. X X
Inspect the engine air cleaner filter, replace
if necessary. *XXX X X
Replace theengine air cleaner filter.X
Replace thespark plugs2.4 liter engines. X
Inspect the tie rod ends and boot seals. X
Inspect and adjust the power steering pump
belt tension on 2.4 liter engines.X
Inspect the generator belt on 2.4 liter
engines, replace if necessary.X
Inspect thePCV valveand replace as
necessary.*X
Change the manual transmission fluid. X
Change the All Wheel Drive (AWD) power
transfer unit fluid. (See note at the end of
this chart)X
Change the All Wheel Drive (AWD)
overrunning clutch and rear carrier fluid.
(See the note at the end of this chart)X
Replace the air conditioning filter. X
0a - 2 MAINTENANCE SCHEDULESRS
MAINTENANCE SCHEDULES FOR ALL MARKETS EXCEPT U.S., CANADA and MEXICO (Continued)
ProCarManuals.com

Kilometers 62 000 67 000 72 000 77 000 82 000 86 000
(Miles) (39,000) (42,000) (45,000) (48,000) (51,000) (54,000)
Change engine oil and engine oil filter.XXXXX X
Inspect the brake linings. X X
Inspect the engine air cleaner filter, replace if
necessary. *XX XX X
Replace theengine air cleaner filter.*X
Inspect and adjust the power steering pump belt
tension on 2.4 liter engines.X
Inspect the generator belt on 2.4 liter engines,
replace if necessary.X
Change the automatic transmission fluid and fliter. X
Change the manual transmission fluid. X
Change the All Wheel Drive power transfer unit
fluid. (See the note at the end of this chart.)X
Change the All Wheel Drive (AWD) overrunning
clutch and rear carrier fluid. (See note at the end of
this chart)X
Replace the air conditioning filter. X
Kilometers 91 000 96 000 101 000 106 000 110 000 115 000
(Miles) (57,000) (60,000) (63,000) (66,000) (69,000) (72,000)
Change engine oil and engine oil filter.XXXXX X
Inspect the brake linings. X X
Inspect the engine air cleaner filter, replace if
necessary. *X XXX X
Replace theengine air cleaner filter.X
Replace thespark plugson 2.4 liter engines. X
Replace theignition cableson 2.4 liter
engines.X
Inspect the tie rod ends and boot seals. X
Inspect and adjust the power steering pump
belt tension on 2.4 liter engines.X
Inspect the generator belt on 2.4 liter engines,
replace if necessary.X
Inspect thePCV valveand replace if
necessary.*X
Inspect the serpentine drive belt on 3.3 liter
engines, replace if necessary.X
Change the manual transmission fluid. X
Change the All Wheel Drive (AWD) power
transfer unit fluid. (See note at the end of this
chart)XX
Change the All Wheel Drive (AWD)
overrunning clutch and rear carrier fluid. (See
note at the end of this chart)X
Replace the air conditioning filter. X
RSMAINTENANCE SCHEDULES0a-3
MAINTENANCE SCHEDULES FOR ALL MARKETS EXCEPT U.S., CANADA and MEXICO (Continued)
ProCarManuals.com

Kilometers 120 000 125 000 130 000 134 000 139 000 144 000
(Miles) (75,000) (78,000) (81,000) (84,000) (87,000) (90,000)
Change engine oil and engine
oil filter.XXXXX X
Inspect the brake linings. X X
Inspect the engine air cleaner
filter, replace if necessary. *XXXX
Replace theengine air
cleaner filterXX
Replace thespark plugson
3.3 liter engines.X
Replace theignition cables
on 3.3 liter engines.X
Replace thespark plugson
2.4 liter engines.X
Inspect and adjust the power
steering pump belt tension on
2.4 liter engines.XX
Inspect the generator belt on
2.4 liter engines, replace if
necessary.XX
Inspect the tie rod ends and
boot seals.X
Inspect engine accessory
drive belts on 3.3 liter
engines, replace if necessary.
³XX
Change the manual
transmission fluid.X
Check thePCV valveand
replace if necessary. Not
required if previously
changed.*X
Change the All Wheel Drive
power transfer unit fluid. (See
the note at the end of this
chart.)XX
Change the All Wheel Drive
(AWD) overrunning clutch and
rear carrier fluid. (See note at
the end of this chart)X
Replace theengine timing
belton 2.4 liter engines. *X
Replace the air conditioning
filter.XX
0a - 4 MAINTENANCE SCHEDULESRS
MAINTENANCE SCHEDULES FOR ALL MARKETS EXCEPT U.S., CANADA and MEXICO (Continued)
ProCarManuals.com

Kilometers 149 000 154 000 158 000 160 000 163 000 168 000
(Miles) (93,000) (96,000) (99,000) (100,000) (102,000) (105,000)
Change engine oil and engine
oil filter.XXX X X
Inspect the brake linings. X
Inspect the engine air cleaner
filter, replace if necessary. *X XXX X
Replace theengine air
cleaner filter*X
Inspect and adjust the power
steering pump belt tension on
2.4 liter engines.X
Inspect the generator belt on
2.4 liter engines, replace if
necessary.X
Inspect engine accessory
drive belts on 3.3 liter
engines, replace if necessary.
³X
Change the automatic
transmission fluid and fliter.X
Change the manual
transmission fluid.X
Change the All Wheel Drive
(AWD) power transfer unit,
overrunning clutch and rear
carrier fluid. (See note at the
end of this chart)X
Flush and replace the engine
coolant at 60 months or
100,000 miles.X
Replace the air conditioning
filter.X
RSMAINTENANCE SCHEDULES0a-5
MAINTENANCE SCHEDULES FOR ALL MARKETS EXCEPT U.S., CANADA and MEXICO (Continued)
ProCarManuals.com

DESCRIPTION Ð DIESEL ENGINES
Maintenance Schedule Information not included in
this section, is located in the appropriate Owner's
Manual.
There are two maintenance schedules that show
therequiredservice for your vehicle.
First is ScheduleªBº. It is for vehicles that are
operated under the conditions that are listed below
and at the beginning of the schedule.
²Extensive engine idling.
²Driving in dusty conditions.
²More than 50% of your driving is at sustained
high speeds during hot weather, above 32É C (90É F).
²Trailer towing.
²Taxi, police, or delivery service (commercial ser-
vice).
NOTE: Most vehicles are operated under the condi-
tions listed for Schedule(B(.
Second is ScheduleªAº. It is for vehicles that are
not operated under any of the conditions listed under
Schedule9B9.
Use the schedule that best describes your driving
conditions. Where time and mileage are listed, follow
the interval that occurs first.
CAUTION: Failure to perform the required mainte-
nance items may result in damage to the vehicle.
At Each Stop for Fuel
²Check the engine oil level about 5 minutes after
a fully warmed engine is shut off. Checking the oil
level while the vehicle is on level ground will
improve the accuracy of the oil level reading. Add oil
only when the level is at or below the ADD or MIN
mark.
²Check the windshield washer solvent and add if
required.
Once a Month
²Check the tire pressure and look for unusual
wear or damage.
²Inspect the battery and clean and tighten the
terminals as required.
²Check the fluid levels of coolant reservoir, brake
master cylinder, power steering and transmission
and add as needed.
²Check all lights and all other electrical items for
correct operation.
At Each Oil Change
²Change the engine oil filter.
²Inspect the exhaust system.
²Inspect the brake hoses.
²Inspect the CV joints and front suspension com-
ponents.
²Check the manual transmission fluid level.
²Check the coolant level, hoses, and clamps.
²Inspect engine accessory drive belts. Replace as
necessary.
²Inspect for the presence of water in the fuel fil-
ter/water separator unit.
²Rotate the tires at each oil change interval (20
000 km).
SCHEDULE ªBº
Follow schedule ªBº if you usually operate your
vehicle under one or more of the following conditions.
²Extensive engine idling.
²Driving in dusty conditions.
²More than 50% of your driving is at sustained
high speeds during hot weather, above 32É C (90É F).
²Trailer towing.
²Taxi, police, or delivery service (commercial ser-
vice).
RSMAINTENANCE SCHEDULES0a-9
MAINTENANCE SCHEDULES FOR ALL MARKETS EXCEPT U.S., CANADA and MEXICO (Continued)
ProCarManuals.com

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 knuckle.
CAUTION: If the vehicle being serviced is equipped
with eccentric strut assembly attaching bolts, the
eccentric bolt must be installed in the bottom (slot-
ted) hole on the strut clevis bracket (Fig. 10).
(7) Install steering knuckle in clevis bracket of
strut damper assembly. Install the strut damper to
steering knuckle attaching bolts. Tighten both bolts
to a torque of 81 N´m (60 ft. lbs.) plus an additional
1/4 turn.
(8) Install braking disc on hub and bearing assem-
bly.
(9) Install disc brake caliper assembly on steering
knuckle. Caliper is installed by first sliding bottom of
caliper assembly under abutment on steering
knuckle, and then rotating top of caliper against top
abutment.
(10) Install disc brake caliper adapter to steering
knuckle attaching bolts (Fig. 4). Tighten the discbrake caliper adapter attaching bolts to a torque of
169 N´m (125 ft. lbs.).
(11) Clean all foreign matter from the threads of
the outer CV joint. Install the washer and half shaft
to hub/bearing assembly nut on half shaft and
securely tighten nut.
(12) Install front wheel and tire assembly. Install
and tighten the wheel mounting stud nuts in proper
sequence until all nuts are torqued to half the
required specification. Then repeat the tightening
sequence to the full specified torque of 135 N´m (100
ft. lbs.).
(13) Lower vehicle.
(14) With the vehicle's brakes applied to keep hub
from turning, tighten the hub nut to a torque of 244
N´m (180 ft. lbs.) (Fig. 11).
(15) Install the spring wave washer on the end of
the half shaft.
(16) Install the hub nut lock, and anewcotter pin
(Fig. 2). Wrap cotter pin prongs tightly around the
hub nut lock as shown in (Fig. 2).
(17) Check for correct fluid level in transaxle
assembly. (Refer to 21 - TRANSMISSION/TRANS-
AXLE/AUTOMATIC - 41TE/FLUID - STANDARD
PROCEDURE)
Fig. 10 Correctly Installed Eccentric Attaching Bolt
1 - STEERING KNUCKLE
2 - FLANGED BOLT IN TOP HOLE
3 - CAM BOLT IN BOTTOM HOLE
4 - STRUT CLEVIS BRACKET
Fig. 11 Torquing Front Half Shaft To Hub Nut
1 - TORQUE WRENCH
RSHALF SHAFT - FRONT3-5
HALF SHAFT - FRONT (Continued)
ProCarManuals.com

REAR DRIVELINE MODULE
TABLE OF CONTENTS
page page
REAR DRIVELINE MODULE
DESCRIPTION.........................23
OPERATION...........................23
DIAGNOSIS AND TESTING
DIAGNOSIS AND TESTING - REAR
DRIVELINE MODULE NOISE.............24
DIAGNOSIS AND TESTING - REAR
DRIVELINE MODULE OPERATION........26
REMOVAL.............................26
DISASSEMBLY.........................27
ASSEMBLY............................29
INSTALLATION.........................33
SPECIFICATIONS - REAR DRIVELINE
MODULE............................34
SPECIAL TOOLS.......................34
BI-DIRECTIONAL OVERRUNNING CLUTCH
DESCRIPTION.........................34
OPERATION...........................36
DIFFERENTIAL ASSEMBLY
DESCRIPTION.........................39OPERATION...........................39
FLUID - DIFFERENTIAL ASSEMBLY
STANDARD PROCEDURE - DIFFERENTIAL
ASSEMBLY FLUID CHANGE.............40
FLUID - OVERRUNNING CLUTCH HOUSING
STANDARD PROCEDURE - OVERRUNNING
CLUTCH HOUSING FLUID CHANGE.......41
VISCOUS COUPLER
DESCRIPTION.........................41
OPERATION...........................42
TORQUE ARM
REMOVAL.............................44
INSTALLATION.........................44
INPUT FLANGE SEAL
REMOVAL.............................44
INSTALLATION.........................45
OUTPUT FLANGE SEAL
REMOVAL.............................45
INSTALLATION.........................46
REAR DRIVELINE MODULE
DESCRIPTION
The rear driveline module assembly (Fig. 1) con-
sists of four main components:
²Bi-Directional Overrunning Clutch (BOC)
²Viscous Coupling
²Differential Assembly
²Torque Arm
The viscous coupling and bi-directional overrun-
ning clutch are contained within an overrunning
clutch housing, which fastens to the differential
assembly. The overrunning clutch housing and differ-
ential assembly have unique fluid sumps, each
requiring their own type and capacity of fluid. The
overrunning clutch housing requires MopartATF+4
(Automatic Transmission FluidÐType 9602) or equiv-
alent. The differential assembly requires Mopart
80W-90 Gear and Axle Lubricant.
Driveline module service is limited to the following
components:
²Differential Assembly (serviced only as assem-
bly)
²Viscous Coupling
²Bi-Directional Overrunning Clutch (BOC)
²Overrunning Clutch Housing²Seals (Input Flange, Output Flange, Overrun-
ning Clutch Housing O-rings)
²Input Flange/Shield
²Torque Arm
²Vents
²Fasteners
OPERATION
The primary benefits of All Wheel Drive are:
²Superior straight line acceleration, and corner-
ing on all surfaces
²Better traction and handling under adverse con-
ditions, resulting in improved hill climbing ability
and safer driving.
The heart of the system is an inter-axle viscous
coupling. The vehicle retains predominantly front-
wheel drive characteristics, but the All Wheel Drive
capability takes effect when the front wheels start to
slip. Under normal level road, straight line driving,
100% of the torque is allocated to the front wheels.
The viscous coupling controls and distributes torque/
power to the rear wheels. The viscous coupling trans-
mits torque to the rear wheels in proportion of the
amount of the slippage at the front wheels. Thais
variable torque distribution is automatic with no
driver inputs required. The coupling is similar to a
multi-plate clutch. It consists of a series of closely
spaced discs, which are alternately connected to the
RSREAR DRIVELINE MODULE3-23
ProCarManuals.com

front and rear drive units. The unit is totally sealed
and partially filled with silicone fluid. There is no
adjustment, maintenance or fluid checks required
during the life of the unit.
The overrunning clutch allows the rear wheels to
overrun the front wheels during a rapid front wheel
lock braking maneuver. The overrunning action pre-
vents any feed-back of front wheel braking torque to
the rear wheels. It also allows the braking system to
control the braking behavior as a two wheel drive
(2WD) vehicle.
The overrunning clutch housing has a separate oil
sump and is filled independently from the differen-
tial. The fill plug is located on the side of the over-
running clutch case. When filling the overrunning
clutch with lubricant use MopartATF+4 (Automatic
Transmission FluidÐType 9602) or equivalent.
The differential assembly contains a conventional
open differential with hypoid ring gear and pinion
gear set. The hypoid gears are lubricated by SAE
80W-90 gear lubricant.DIAGNOSIS AND TESTING
DIAGNOSIS AND TESTING - REAR DRIVELINE
MODULE NOISE
Different sources can be the cause of noise that the
rear driveline module assembly is suspected of mak-
ing. Refer to the following causes for noise diagnosis.
DRIVELINE MODULE ASSEMBLY NOISE
The most important part of driveline module ser-
vice is properly identifying the cause of failures and
noise complaints. The cause of most driveline module
failures is relatively easy to identify. The cause of
driveline module noise is more difficult to identify.
If vehicle noise becomes intolerable, an effort
should be made to isolate the noise. Many noises that
are reported as coming from the driveline module
may actually originate at other sources. For example:
²Tires
²Road surfaces
²Wheel bearings
Fig. 1 AWD Driveline Module Assembly
1 - TORQUE ARM 8 - WASHER 15 - PLUG-OVERRUNNING CLUTCH
HOUSING DRAIN
2 - INPUT FLANGE 9 - BI-DIRECTIONAL OVERRUNNING
CLUTCH (BOC)16 - SNAP RING
3 - FLANGE NUT 10 - VISCOUS COUPLER 17 - BEARING
4 - WASHER 11 - SHIM (SELECT) 18 - OVERRUNING CLUTCH HOUSING
5 - SHIELD 12 - O-RING 19 - SEAL-INPUT FLANGE
6 - VENT 13 - DIFFERENTIAL ASSEMBLY
7 - O-RING 14 - PLUG-DIFFERENTIAL FILL
3 - 24 REAR DRIVELINE MODULERS
REAR DRIVELINE MODULE (Continued)
ProCarManuals.com