clutch CHRYSLER CARAVAN 2003 Service Manual

(46) Using tool 5058, compress 2/4 clutch return
spring just enough to install snap ring (Fig. 135).(47) Install snap ring.
(48) Set up dial indicator as shown in (Fig. 136)
and measure 2/4 clutch clearance. Press down on
clutch pack with finger and zero dial indicator.2/4
clutch pack clearance is 0.76-2.64 mm
(0.030-0.104 in.).Set up indicator and record mea-
surement in four (4) places. Take average of read-
ings. If clearance is outside this range, the clutch is
assembled improperly.There is no adjustment for
2/4 clutch clearance.
Fig. 133 Proper Orientation of 2/4 Clutch Retainer
and Spring
1 - NOTE POSITION
2 - RETURN SPRING
3 - 2/4 CLUTCH RETAINER
Fig. 134 2/4 Clutch Retainer
1 - 2/4 CLUTCH RETAINER
2 - 2/4 CLUTCH RETURN SPRING
Fig. 135 Install 2/4 Clutch Retainer Snap Ring
1 - TOOL 5058
2 - SCREWDRIVER
3 - SNAP RING
4 - 2/4 CLUTCH RETAINER
Fig. 136 Check 2/4 Clutch Clearance
1 - DIAL INDICATOR
2 - HOOK TOOL
3 - DIAL INDICATOR TIP TOOL 6268
RS41TE AUTOMATIC TRANSAXLE21 - 159
41TE AUTOMATIC TRANSAXLE (Continued)
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(49) Install rear sun gear and #7 needle bearing
(Fig. 138).
NOTE: The number seven 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. 137). A small amount of petrola-
tum can be used to hold the bearing to the rear sun
gear.
(50) Install front carrier/rear annulus assembly
and #6 needle bearing (Fig. 139).
(51) Install front sun gear assembly and #4 thrust
washer (Fig. 140).(52)DETERMINING #4 THRUST PLATE
THICKNESS / INPUT SHAFT END PLAY:
(a) Select the thinnest #4 thrust plate thickness
and install to input clutch assembly (Fig. 141). Use
petrolatum to retain.
(b) Install input clutch assembly into position
and verify that it is completely seated by viewing
through input speed sensor hole. If view through
input speed sensor hole is not as shown in (Fig.
142), the input clutch assembly is not seated prop-
erly.
(c) Remove oil pump o-ring (Fig. 143).Be sure
to reinstall oil pump o-ring after selecting the
proper #4 thrust plate.
Fig. 137 Number 7 Bearing
1 - #7 NEEDLE BEARING
2 - REAR SUN GEAR
Fig. 138 Install Rear Sun Gear and #7 Needle
Bearing
1 - #7 NEEDLE BEARING
2 - REAR SUN GEAR
Fig. 139 Install 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. 140 Install Front Sun Gear Assembly
1 - FRONT SUN GEAR ASSEMBLY
2 - #4 THRUST WASHER (FOUR TABS)
21 - 160 41TE AUTOMATIC TRANSAXLERS
41TE AUTOMATIC TRANSAXLE (Continued)
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(d) Install pump and gasket to transmission.
Install and torque bolts.
(e) Set up input shaft for measurement with
Indicator Set C3339 and End Play Set 8266 as
shown in (Fig. 144).
(f) Measure the input shaft end play with the
transaxle in the vertical position.Input shaft end
play must be within 0.005 to 0.025 inch.For
example, if end play reading is 0.055 inch, select
No. 4 Thrust Plate which is 0.071 to 0.074 thick.
This should provide an input shaft end play read-
ing of 0.020 inch which is within specifications.
(g) Refer to the No. 4 thrust plate chart to select
the proper No. 4 thrust plate:
Fig. 141 Select Thinnest No. 4 Thrust Plate
1 - OVERDRIVE SHAFT ASSEMBLY
2 - #4 THRUST PLATE (SELECT)
3 - 3 DABS OF PETROLATUM FOR RETENTION
Fig. 142 View Through Input Speed Sensor Hole
1 - INPUT CLUTCH RETAINER
2 - INPUT SPEED SENSOR HOLE
3 - OIL COOLER FITTINGS
Fig. 143 Remove Oil Pump O-Ring
1 - OIL PUMP ASSEMBLY
2 - O-RING
Fig. 144 Measure Input Shaft End Play Using End
Play Set 8266
1 - TOOL 8266±8
2 - TOOL 8266±2
3 - TOOL C-3339
RS41TE AUTOMATIC TRANSAXLE21 - 161
41TE AUTOMATIC TRANSAXLE (Continued)
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NO. 4 THRUST PLATE CHART
PART NUMBER THICKNESS
4431665AB 1.60mm (0.063 in.)
3836237AB 1.73mm (0.068 in.)
4431666AB 1.80mm (0.071 in.)
3836238AB 1.96mm (0.077 in.)
4431667AB 2.03mm (0.080 in.)
3836239AB 2.16mm (0.085 in.)
4431668AB 2.24mm (0.088 in.)
3836240AB 2.39mm (0.094 in.)
4431669AB 2.46mm (0.097 in.)
3836241AB 2.62mm (0.103 in.)
4446670AB 2.67mm (0.105 in.)
4446671AB 2.90mm (0.114 in.)
(53) Install input clutch assembly (Fig. 145).
(54) Install #1 caged needle bearing (Fig. 146).
CAUTION: The cooler bypass valve must be
replaced if transaxle failure has occurred. Do not
attempt to reuse or clean old valve.
(55) Install cooler bypass valve with o-ring end
towards rear of case (Fig. 147).
(56) Install oil pump gasket (Fig. 148).
Fig. 145 Install Input Clutch Assembly
1 - INPUT CLUTCH ASSEMBLY
2 - #4 THRUST WASHER
Fig. 146 Install Caged Needle Bearing
1 - #1 CAGED NEEDLE BEARING
2 - NOTE: TANGED SIDE OUT
Fig. 147 Install Cooler Bypass Valve
1 - COOLER BYPASS VALVE
Fig. 148 Install Oil Pump Gasket
1 - PUMP GASKET
21 - 162 41TE AUTOMATIC TRANSAXLERS
41TE AUTOMATIC TRANSAXLE (Continued)
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(61) Install low/reverse accumulator snap ring
(Fig. 153).
NOTE: Depending on engine application, some
accumulators will have two springs, and others will
have one spring. The springs are color-coded for
application and year.
(62) Install underdrive and overdrive accumulators
(Fig. 154) (Fig. 155) (Fig. 156).
Fig. 153 Install Low/Reverse Accumulator Snap
Ring
1 - SNAP RING
2 - PLUG
Fig. 154 Accumulator (Underdrive)
1 - ACCUMULATOR PISTON (UNDERDRIVE)
2 - RETURN SPRINGS
3 - SEAL RING
4 - SEAL RING
Fig. 155 Accumulator (Overdrive)
1 - ACCUMULATOR PISTON (OVERDRIVE)
2 - RETURN SPRING
3 - SEAL RING
4 - SEAL RING
Fig. 156 Install Underdrive and Overdrive
Accumulators
1 - RETURN SPRING
2 - UNDERDRIVE CLUTCH ACCUMULATOR
3 - SEAL RING (2)
4 - OVERDRIVE CLUTCH ACCUMULATOR
21 - 164 41TE AUTOMATIC TRANSAXLERS
41TE AUTOMATIC TRANSAXLE (Continued)
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(67) Install oil pan-to-case bolts and torque to 19
N´m (165 in. lbs.).
(68) Install solenoid/pressure switch assembly and
gasket to case (Fig. 161).
(69) Install and tighten solenoid/pressure switch
assembly-to-transaxle case bolts to 12 N´m (110 in.
lbs.) (Fig. 162).(70) Install and torque input and output speed
sensors to case to 27 N´m (20 ft. lbs.).
INSTALLATION
NOTE: If transaxle assembly has been replaced or
overhauled (clutch and/or seal replacement), it is
necessary to perfrom the TCM Quick Learn proce-
dure. (Refer to 8 - ELECTRICAL/ELECTRONIC CON-
TROL MODULES/TRANSMISSION CONTROL
MODULE - STANDARD PROCEDURE)
(1) Using a transmission jack and a helper, posi-
tion transaxle assembly to engine. Install and torque
bellhousing bolts to 95 N´m (70 ft. lbs.).
(2) Install upper mount assembly to transaxle and
torque bolts to 54 N´m (40 ft. lbs.) (Fig. 163).
(3) Raise engine/transaxle assembly into position.
Install and torque upper mount-to-bracket thru-bolt
to 75 N´m (55 ft. lbs.) (Fig. 163).
(4) Remove transmission jack and screw jack.
(5) Secure left wheelhouse splash shield.
(6) Install torque converter-to-drive plate bolts and
torque to 88 N´m (65 ft. lbs.)
(7) Install inspection cover.
(8) Install lateral bending brace.
(9) Install starter motor.
(10) Install front mount/bracket assembly.
Fig. 161 Solenoid/Pressure Switch Assembly and
Gasket
1 - SOLENOID/PRESSURE SWITCH ASSEMBLY
2 - GASKET
Fig. 162 Attaching Bolts
1 - BOLTS
2 - SOLENOID AND PRESSURE SWITCH ASSEMBLY
Fig. 163 Left Mount to Bracket and Transaxle
1 - BOLT - BRACKET TO FRAME RAIL 68 N´m (50 ft. lbs.)
2 - BOLT - MOUNT TO RAIL THRU 75 N´m (55 ft. lbs.)
3 - BOLT - LEFT MOUNT TO TRANSAXLE 54 N´m (40 ft. lbs.)
4 - TRANSAXLE
5 - MOUNT - LEFT
6 - BRACKET - LEFT MOUNT
21 - 166 41TE AUTOMATIC TRANSAXLERS
41TE AUTOMATIC TRANSAXLE (Continued)
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SPECIFICATIONS - 41TE TRANSAXLE
GENERAL SPECIFICATIONS
DESCRIPTION SPECIFICATION
Transaxle TypeFully adaptive, electronically controlled, four speed
automatic with torque converter and integral differential
Cooling Method Air-to-oil heat exchanger
Lubrication Pump (internal-external gear-type
GEAR RATIOS
DESCRIPTION SPECIFICATION
First Gear 2.84
Second Gear 1.57
Direct Gear 1.00
Overdrive Gear 0.69
Reverse Gear 2.21
BEARING SETTINGS (END PLAY & TURNING TORQUE)
DESCRIPTION METRIC STANDARD
Differential Assembly 0.6-2 N´m 5-18 in. lbs.
Output Hub 0.3-2 N´m 3-8 in. lbs.
Transfer Shaft (End Play) 0.051-0.102 mm 0.002-0.004 in.
Overall Drag At Output Hub 0.3-1.9 N´m 3-16 in. lbs.
CLUTCH CLEARANCES
DESCRIPTION METRIC STANDARD
Low/Rev Clutch (Select Reaction
Plate)0.89-1.47 mm 0.035-0.058 in.
Two/Four Clutch (No Selection) 0.76-2.64 mm 0.030-0.104 in.
Reverse Clutch (Select Snap Ring) 0.89-1.37 mm 0.035-0.054 in.
Overdrive Clutch (No Selection) 1.07-3.25 mm 0.042-0.128 in.
Underdrive Clutch (Select Pressure
Plate)0.94-1.50 mm 0.037-0.059 in.
OIL PUMP CLEARANCES
DESCRIPTION METRIC STANDARD
Outer Gear-to-Crescent 0.060-0.298 mm 0.0023-0.0117 in.
Inner Gear-to-Crescent 0.093-0.385 mm 0.0036-0.0151 in.
Outer Gear-to-Pocket 0.089-0.202 mm 0.0035-0.0079 in.
Outer Gear Side Clearance 0.020-0.046 mm 0.0008-0.0018 in.
Inner Gear Side Clearance 0.020-0.046 mm 0.0008-0.0018 in.
RS41TE AUTOMATIC TRANSAXLE21 - 181
41TE AUTOMATIC TRANSAXLE (Continued)
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INPUT SHAFT
DESCRIPTION METRIC SPECIFICATION
End Play 0.127-0.635mm 0.005-0.025 in.
TORQUE SPECIFICATIONS
DESCRIPTION N´m Ft. Lbs. In. Lbs.
Bolt, Differential Cover-to-Case 19 Ð 165
Bolt, Differential Ring Gear-to-Case 95 70 Ð
Bolt, Differential Bearing Retainer-to-
Case28 21 Ð
Bolt, Driveplate-to-Crankshaft 95 70 Ð
Bolt, Extension Housing/Plate-to-Case 28 21 Ð
Bolt, Oil Pan-to-Case 19 Ð 165
Bolt, Output Gear 271 200 Ð
Bolt, Output Gear Stirrup/Strap 23 17 Ð
Bolt, Oil Pump-to-Case 27 20 Ð
Bolt, Reaction Support-to-Case 27 20 Ð
Bolt, Solenoid/Pressure Switch
Assy.-to-Case12 Ð 110
Bolt, Torque Converter-to-Driveplate 75 55 Ð
Bolt, Transfer Gear Cover 20 Ð 175
Bolt, Valve Body-to-Case 12 Ð 105
Fitting, Oil Cooler Line 12 Ð 105
Nut, Tranfer Gear 271 200 Ð
Tap, Transaxle Pressure 5 Ð 45
Screw, L/R Clutch Retainer 5 Ð 45
Screw, Solenoid/Pressure Switch Assy.
Connector4Ð35
Screw, Valve Body-to-Transfer Plate 5 Ð 45
Sensor, Input Speed 27 20 Ð
Sensor, Output Speed 27 20 Ð
Sensor, Transmission Range Sensor 5 Ð 45
21 - 182 41TE AUTOMATIC TRANSAXLERS
41TE AUTOMATIC TRANSAXLE (Continued)
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ACCUMULATOR
DESCRIPTION
The 41te underdrive, overdrive, low/reverse, and
2/4 clutch hydraulic circuits each contain an accumu-
lator. An accumulator typically consists of a piston,
seals, return spring(s), and a cover or plug. The over-
drive and underdrive accumulators are located
within the transaxle case, and are retained by the
valve body (Fig. 168).
The low reverse accumulator (Fig. 169) is also
located within the transaxle case, but the assembly is
retained by a cover and a snap-ring.
The 2/4 accumulator is located in the valve body. It
is retained by a cover and retaining screws (Fig.
170).
Remover/Installer 6302
Installer 6536-A
Puller 7794-A
End Play Socket Set 8266
Input Clutch Pressure Fixture 8391
Fig. 168 Underdrive and Overdrive Accumulators
1 - RETURN SPRING
2 - UNDERDRIVE CLUTCH ACCUMULATOR
3 - SEAL RING (2)
4 - OVERDRIVE CLUTCH ACCUMULATOR
21 - 188 41TE AUTOMATIC TRANSAXLERS
41TE AUTOMATIC TRANSAXLE (Continued)
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OPERATION
The function of an accumulator is to cushion the
application of a frictional clutch element. When pres-
surized fluid is applied to a clutch circuit, the appli-
cation force is dampened by fluid collecting in the
respective accumulator chamber against the piston
and spring(s). The intended result is a smooth, firm
clutch application.
AUTOSTICK SWITCH
DESCRIPTION
Autostick is a driver-interactive transaxle feature
that offers manual gear shifting capability. The control
switch is part of the transaxle gear shift lever as
shown in (Fig. 171). It can only be serviced by replac-
ing the gearshift lever assembly. (Refer to 19 - STEER-
ING/COLUMN/GEAR SHIFT LEVER - REMOVAL)
OPERATION
When the shift lever is moved into the Autostick
position (as indicated by the Shift Lever Position
Indicator in the cluster), the transaxle remains in
whatever gear it was using before Autostick was acti-
vated. The TCM sends a 5 volt signal through the
switch and then monitors the signal for voltage drop.
Each switch state (driver command) results in a spe-
cific voltage reading sensed by the TCM. The TCM
then determines transaxle operation (upshift/down-
shift/OD Lockout) based on their corresponding volt-
age. Refer to the following chart for corresponding
switch states and voltage readings:
Switch State Voltage Reading
Autostick DOWN
depressed0.3V-1.6V
Autostick UP depressed 1.6V-2.8V
Overdrive OFF9Lockout9
depressed2.8V-3.8V
All switches open 3.8V-4.8V
-Voltage values <.3V and >4.8V are considered
INVALID and will result in a DTC
Fig. 169 Low/Reverse Accumulator Assembly
1 - ACCUMULATOR PISTON
2 - SEAL RINGS
3 - RETURN SPRINGS
4 - (NOTE NOTCH)
Fig. 170 2/4 Accumulator Assembly
1 - VALVE BODY
2 - RETAINER PLATE
3 - DETENT SPRING
4 - SPRINGS
5 - SEALS
6 - PISTON
Fig. 171 Autostick Switch Location (if equipped)
RS41TE AUTOMATIC TRANSAXLE21 - 189
ACCUMULATOR (Continued)
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