2003 CHRYSLER CARAVAN clutch

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)
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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)
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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)
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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)
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Kilometers 173 000 178 000 182 000 187 000 192 000
(Miles) (108,000) (111,000) (114,000) (117,000) (120,000)
Change engine oil and engine oil filter.XXXX X
Inspect the brake linings. X X
Inspect the engine air cleaner filter, replace
if necessary. *XXXX
Replace theengine air cleaner filter.X
Replace thespark plugson 2.4 liter
engines.X
Replace theignition cableson 2.4 liter
engines.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
Inspect the tie rod ends and boot seals. X
Inspect thePCV valveand replace as
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
* This maintenance is recommended by the manu-
facture to the owner but is not required to maintain
the emissions warranty.
³ This maintenance is not required if previously
replaced.
Inspection and service should also be performed
anytime a malfunction is observed or suspected.
Retain all receipts.NOTE: The AWD power transfer unit fluid and the
AWD overrunning clutch/ rear carrier fluid must be
changed at the more frequent intervals shown in
schedule B if the vehicle is operated under any of
the conditions noted by a diamond at the beginning
of the schedule.
0a - 6 MAINTENANCE SCHEDULESRS
MAINTENANCE SCHEDULES FOR ALL MARKETS EXCEPT U.S., CANADA and MEXICO (Continued)
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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
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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)
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DIAGNOSIS AND TESTING - REAR DRIVELINE
MODULE OPERATION
Driveline module operation requires relatively
straight-forward diagnosis. Refer to the following
chart:
DRIVELINE MODULE DIAGNOSIS CHART
CONDITION POSSIBLE CAUSES CORRECTION
Rear wheels not
overrunning1) Bi-directional overrunning clutch
failure1) Replace overrunning clutch
components as required
No AWD in forward or
reverse directions, propeller
shaft turning1) Bi-directional overrunning clutch
failure1) Replace overrunning clutch
components as required
2) Viscous coupling failure 2) Replace viscous coupling
3) Rear differential failure 3) Replace the rear differential
assembly
No AWD in forward or
reverse directions, propeller
shaft not turning1) Power transfer unit failure. 1) Replace power transfer unit
components as necessary
Vibration at all speeds,
continuous torque transfer1) Mis-matched tires, worn tires on
front axle.1) Replace worn or incorrect
(mis-matched) tires with same
make and size
REMOVAL
(1) Raise vehicle on hoist.
(2) Drain fluid from overrunning clutch housing
and/or differential assembly if necessary.
(3) Remove propeller shaft. (Refer to 3 - DIFFER-
ENTIAL & DRIVELINE/PROPELLER SHAFT -
REMOVAL)
(4) Disconnect left and right rear halfshafts from
output flanges (Fig. 2).
(5) Remove torque arm mount to body bolts.(6) Position transmission jack to driveline module
assembly and secure assembly to jack.
(7) Remove two driveline module-to-body bolts
(Fig. 3).
(8) Lower driveline module from vehicle and
remove from jack.
Fig. 2 Half Shaft Mounting Bolts
1 - SHAFT
2 - FLANGE
Fig. 3 Rear Drive Line Module Assembly Mounting
Bolts
1 - DRIVELINE MODULE RETAINING BOLT (2)
2 - RUBBER ISOLATOR
3 - WASHER
3 - 26 REAR DRIVELINE MODULERS
REAR DRIVELINE MODULE (Continued)
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