clutch CHRYSLER CARAVAN 2005 Service Manual

DIAGNOSIS AND TESTING - CLUTCH AIR
PRESSURE TESTS
Inoperative clutches can be located using a series
of tests by substituting air pressure for fluid pressure
(Fig. 5) (Fig. 6). The clutches may be tested by apply-
ing air pressure to their respective passages. The
valve body must be removed and Tool 6056 installed.
To make air pressure tests, proceed as follows:
NOTE: The compressed air supply must be free of
all dirt and moisture. Use a pressure of 30 psi.
Remove oil pan and valve body. See Valve body
removal.
OVERDRIVE CLUTCH
Apply air pressure to the overdrive clutch apply
passage and watch for the push/pull piston to move
forward. The piston should return to its starting
position when the air pressure is removed.
REVERSE CLUTCH
Apply air pressure to the reverse clutch apply pas-
sage and watch for the push/pull piston to move rear-
ward. The piston should return to its starting
position when the air pressure is removed.
2/4 CLUTCH
Apply air pressure to the feed hole located on the
2/4 clutch retainer. Look in the area where the 2/4
piston contacts the first separator plate and watch
carefully for the 2/4 piston to move rearward. The
piston should return to its original position after the
air pressure is removed.
LOW/REVERSE CLUTCH
Apply air pressure to the low/reverse clutch feed
hole (rear of case, between 2 bolt holes). Then, look
in the area where the low/reverse piston contacts the
first separator plate. Watch carefully for the piston to
move forward. The piston should return to its origi-
nal position after the air pressure is removed.
UNDERDRIVE CLUTCH
Because this clutch piston cannot be seen, its oper-
ation is checked by function. Air pressure is applied
to the low/reverse and the 2/4 clutches. This locks the
output shaft. Use a piece of rubber hose wrapped
around the input shaft and a pair of clamp-on pliers
to turn the input shaft. Next apply air pressure to
the underdrive clutch. The input shaft should not
rotate with hand torque. Release the air pressure
and confirm that the input shaft will rotate.
Fig. 5 Air Pressure Test Plate
1 - TOOL 6056
2 - ACCUMULATORS
Fig. 6 Testing Reverse Clutch
1 - TOOL 6056
2 - AIR NOZZLE
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41TE AUTOMATIC TRANSAXLE (Continued)

DIAGNOSIS AND TESTING - TORQUE
CONVERTER HOUSING FLUID LEAKAGE
When diagnosing converter housing fluid leaks,
three actions must be taken before repair:
(1) Verify proper transmission fluid level.
(2) Verify that the leak originates from the con-
verter housing area and is transmission fluid.
(3) Determine the true source of the leak.
Fluid leakage at or around the torque converter area
may originate from an engine oil leak (Fig. 7). The area
should be examined closely. Factory fill fluid is red and,
therefore, can be distinguished from engine oil.
Some suspected converter housing fluid leaks may not
be leaks at all. They may only be the result of residual
fluid in the converter housing, or excess fluid spilled
during factory fill, or fill after repair. Converter housing
leaks have several potential sources. Through careful
observation, a leak source can be identified before
removing the transmission for repair.
Pump seal leaks tend to move along the drive hub
and onto the rear of the converter (Fig. 7). Pump o-ring
or pump body leaks follow the same path as a seal leak.
Pump attaching bolt leaks are generally deposited on
the inside of the converter housing and not on the con-
verter itself. Pump seal or gasket leaks usually travel
down the inside of the converter housing (Fig. 7).
TORQUE CONVERTER LEAKAGE
Possible sources of torque converter leakage are:
²Torque converter weld leaks at the outside diam-
eter weld (Fig. 8).
²Torque converter hub weld (Fig. 8).
REMOVAL
NOTE: If transaxle assembly is being replaced or
overhauled (clutch and/or seal replacement), it is
necessary to perform the ªQuick-Learnº Procedure.
(Refer to 8 - ELECTRICAL/ELECTRONIC CONTROL
MODULES/TRANSMISSION CONTROL MODULE -
STANDARD PROCEDURE)
(1) Disconnect battery cables.
(2) Remove battery shield (Fig. 9).
Fig. 7 Converter Housing Leak Paths
1 - PUMP SEAL
2 - PUMP VENT
3 - PUMP BOLT
4 - PUMP GASKET
5 - CONVERTER HOUSING
6 - CONVERTER
7 - REAR MAIN SEAL LEAK
Fig. 8 Converter Leak Points - Typical
1 - OUTSIDE DIAMETER WELD
2 - TORQUE CONVERTER HUB WELD
3 - STARTER RING GEAR
4 - LUG
Fig. 9 Battery Thermal Guard
1 - BATTERY THERMOWRAP (IF EQUIPPED)
2 - INTEGRATED POWER MODULE
3 - FRONT CONTROL MODULE
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41TE AUTOMATIC TRANSAXLE (Continued)

(28) Obtain helper and/or transmission jack.
Secure transmission jack to transaxle assembly.
(29) Remove upper mount bracket from transaxle
(Fig. 14).
(30) Remove remaining transaxle bellhousing-to-
engine bolts.
(31) Remove transaxle assembly from vehicle.
DISASSEMBLY
NOTE: If transaxle is being overhauled (clutch
and/or seal replacement) or replaced, it is neces-
sary to perform the PCM/TCM Quick Learn Proce-
dure. (Refer to 8 - ELECTRICAL/ELECTRONIC
CONTROL MODULES/POWERTRAIN/TRANSMIS-
SION CONTROL MODULE - STANDARD PROCE-
DURE)
NOTE: This procedure does not include final drive
(differential) disassembly.
(1) Remove input and output speed sensors.
(2) Remove three (3) solenoid/pressure switch
assembly-to-case bolts.
(3) Remove solenoid/pressure switch assembly and
gasket (Fig. 15).(4) Remove oil pan-to-case bolts (Fig. 16).
(5) Remove oil pan (Fig. 17).
Fig. 15 Solenoid/Pressure Switch Assembly and
Gasket
1 - SOLENOID/PRESSURE SWITCH ASSEMBLY
2 - GASKET
Fig. 16 Remove Oil Pan Bolts
1 - OIL PAN BOLTS (USE RTV UNDER BOLT HEADS)
Fig. 17 Remove Oil Pan
1 - OIL PAN
2 - 1/8 INCH BEAD OF MOPARTATF RTV (MS-GF41)
3 - OIL FILTER
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41TE AUTOMATIC TRANSAXLE (Continued)

(20) Remove #1 needle bearing (Fig. 34).
(21) Remove input clutch assembly (Fig. 35).(22) Remove #4 thrust plate (Fig. 36).
(23) Remove front sun gear assembly and #4
thrust washer (Fig. 37).
Fig. 34 Remove Caged Needle Bearing
1 - #1 CAGED NEEDLE BEARING
2 - NOTE: TANGED SIDE OUT
Fig. 35 Remove Input Clutch Assembly
1 - INPUT CLUTCH ASSEMBLY
2 - #4 THRUST WASHER
Fig. 36 No. 4 Thrust Plate
1 - OVERDRIVE SHAFT ASSEMBLY
2 - #4 THRUST PLATE (SELECT)
3 - 3 DABS OF PETROLATUM FOR RETENTION
Fig. 37 Remove Front Sun Gear Assembly
1 - FRONT SUN GEAR ASSEMBLY
2 - #4 THRUST WASHER (FOUR TABS)
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41TE AUTOMATIC TRANSAXLE (Continued)

(24) Remove front carrier/rear annulus assembly
and #6 needle bearing (Fig. 38).
(25) Remove rear sun gear and #7 needle bearing
(Fig. 39).
NOTE: The number 7 needle bearing has three anti-
reversal tabs and is common with the number five
and number two position. The orientation should
allow the bearing to seat flat against the rear sun
gear (Fig. 40). A small amount of petrolatum can be
used to hold the bearing to the rear sun gear.(26) Setup tool 5058 as shown in (Fig. 41). Com-
press 2/4 clutch return spring (just enough to remove
snap ring) and remove snap ring.
NOTE: Verify that Tool 5058 is centered properly
over the 2/4 clutch retainer before compressing. If
necessary, fasten the 5058 bar to the bellhousing
flange with any combination of locking pliers and
bolts to center the tool properly.
Fig. 38 Remove Front Carrier and Rear Annulus
Assembly
1 - #6 NEEDLE BEARING
2 - FRONT CARRIER AND REAR ANNULUS ASSEMBLY (TWIST
AND PULL OR PUSH TO REMOVE OR INSTALL).
Fig. 39 Remove Rear Sun Gear
1 - #7 NEEDLE BEARING
2 - REAR SUN GEAR
Fig. 40 Number 7 Bearing
1 - #7 NEEDLE BEARING
2 - REAR SUN GEAR
Fig. 41 Remove 2/4 Clutch Retainer Snap Ring
1 - TOOL 5058
2 - SCREWDRIVER
3 - SNAP RING
4 - 2/4 CLUTCH RETAINER
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41TE AUTOMATIC TRANSAXLE (Continued)

NOTE: The 2/4 Clutch Piston has bonded seals
which are not individually serviceable. Seal replace-
ment requires replacement of the piston assembly.
(27) Remove 2/4 clutch retainer (Fig. 42).
(28) Remove 2/4 clutch return spring (Fig. 43).(29) Remove 2/4 clutch pack (Fig. 44).Tag 2/4
clutch pack for reassembly identification.
(30) Remove tapered snap ring (Fig. 45).
Fig. 42 2/4 Clutch Retainer
1 - 2/4 CLUTCH RETAINER
2 - 2/4 CLUTCH RETURN SPRING
Fig. 43 Remove 2/4 Clutch Return Spring
1 - 2/4 CLUTCH RETURN SPRING
Fig. 44 Remove 2/4 Clutch Pack
1 - CLUTCH PLATE (4)
2 - CLUTCH DISC (4)
Fig. 45 Remove Tapered Snap Ring
1 - LOW/REVERSE CLUTCH REACTION PLATE
2 - SCREWDRIVER
3 - LOW/REVERSE TAPERED SNAP RING (TAPERED SIDE UP)
4 - OIL PAN FACE
5 - LONG TAB
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41TE AUTOMATIC TRANSAXLE (Continued)

(31) Remove low/reverse reaction plate (Fig. 46).
(32) Remove one low/reverse clutch disc (Fig. 47).(33) Remove low/reverse reaction plate snap ring
(Fig. 48).
(34) Remove low/reverse clutch pack (Fig. 49).
Fig. 46 Remove Low/Reverse Reaction Plate
1 - LOW/REVERSE REACTION PLATE (FLAT SIDE UP)
Fig. 47 Remove One Disc
1 - ONE DISC FROM LOW/REVERSE CLUTCH
Fig. 48 Remove Low/Reverse Reaction Plate Snap
Ring
1 - SCREWDRIVER
2 - LOW/REVERSE REACTION PLATE FLAT SNAP RING
3 - DO NOT SCRATCH CLUTCH PLATE
Fig. 49 Remove Low/Reverse Clutch Pack
1 - CLUTCH PLATES (5)
2 - CLUTCH DISCS (5)
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41TE AUTOMATIC TRANSAXLE (Continued)

(54) Remove rear carrier assembly from transaxle
(Fig. 70).
(55) Remove rear carrier assembly bearing cone
using setup shown in (Fig. 71).(56) Install low/reverse spring compressor tool as
shown in (Fig. 72) (Fig. 73).
Fig. 70 Remove Rear Carrier Assembly
1 - REAR CARRIER ASSEMBLY
Fig. 71 Remove Rear Carrier Bearing Cone
1 - TOOL 5048 WITH JAWS 5048±3 AND BUTTON 6055
2 - WRENCHES
3 - REAR CARRIER ASSEMBLY
Fig. 72 Low/Reverse Spring Compressor Tool
1 - TOOL 6057
2 - TOOL 5059
3 - TOOL 5058±3
Fig. 73 Compressor Tool in Use
1 - LOW/REVERSE CLUTCH RETURN SPRING
2 - SNAP RING (INSTALL AS SHOWN)
3 - TOOL 6057
4 - TOOL 5059
5 - TOOL 5058±3
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41TE AUTOMATIC TRANSAXLE (Continued)

(61) Inspect guide bracket components for exces-
sive wear and replace if necessary (Fig. 78).
NOTE: The Low/Reverse Clutch Piston has bonded
seals which are not individually serviceable. Seal
replacement requires replacement of the piston
assembly.
(62) Remove low/reverse clutch piston (Fig. 79).(63) Remove low/reverse piston retainer-to-case
screws (Fig. 80).
(64) Remove low/reverse piston retainer (Fig. 81).
Fig. 78 Guide Bracket Disassembled
1 - ANTIRATCHET SPRING
2 - GUIDE BRACKET
3 - SPLIT SLEEVE
4 - SPACER
5-PAWL
6 - STEPPED SPACER
Fig. 79 Remove Low/Reverse Clutch Piston
1 - LOW/REVERSE CLUTCH PISTON
2 - BONDED SEAL
3 - BONDED SEAL
Fig. 80 Remove Piston Retainer Attaching Screws
1 - LOW/REVERSE CLUTCH PISTON RETAINER
2 - SCREWDRIVER
3 - TORX-LOC SCREWS
Fig. 81 Remove Piston Retainer
1 - LOW/REVERSE CLUTCH PISTON RETAINER
2 - GASKET
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41TE AUTOMATIC TRANSAXLE (Continued)

(65) Remove low/reverse piston retainer-to-case
gasket (Fig. 82).
(66) Using a hammer and suitable drift, drive out
inner output bearing cup (Fig. 83).
(67) Using tool 6062, remove outer output bearing
cup (Fig. 84).
ASSEMBLY
CAUTION: The cooler bypass valve must be
replaced if transaxle failure has occurred. Do not
attempt to reuse or clean old valve.NOTE: If transaxle is being overhauled (clutch
and/or seal replacement), the TCM/PCM Quick Learn
procedure must be performed. (Refer to 8 - ELEC-
TRICAL/ELECTRONIC CONTROL MODULES/TRANS-
MISSION CONTROL MODULE - STANDARD
PROCEDURE)
(1) Install both output bearing cups using Tool
5050 (Fig. 85).
Fig. 82 Remove Piston Retainer Gasket
1 - GASKET HOLES MUST LINE UP
2 - LOW/REVERSE CLUTCH PISTON RETAINER GASKET
Fig. 83 Remove Output Bearing Inner Cup
1 - OUTPUT BEARING CUPS (REPLACE IN PAIRS)
2 - HAMMER
3 - BRASS DRIFT
Fig. 84 Remove Output Bearing Outer Cup
1 - TOOL 6062
Fig. 85 Install Both Output Bearing Cups
1 - OUTPUT BEARING CUPS
2 - WRENCHES
3 - TOOL 5050
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41TE AUTOMATIC TRANSAXLE (Continued)