2003 CHRYSLER CARAVAN ECU

(11) Install center console support bracket (Fig.
179). Torque support bracket-to-gearshift mechanism
screws to 12 N´m (108 in. lbs.).
(12) Install center console assembly (Fig. 180).
Install and torque center console-to-gearshift mecha-
nism screws to 5 N´m (45 in. lbs.).(13) Install cupholder plugs (Fig. 181).
(14) Install gearshift boot to console (Fig. 182).
Secure with three (3) retainer clips.
Fig. 179 Center Console Support Bracket
1 - BRACKET
2 - SCREW
3 - GEARSHIFT MECHANISM
Fig. 180 Center Console Removal/Installation (LHD
Shown Ð RHD Typical)
1 - CENTER CONSOLE
2 - SCREW (4)
3 - GEARSHIFT MECHANISM
Fig. 181 Cup Holder Plugs
1 - CUPHOLDER PLUG (2)
Fig. 182 Gearshift Boot Removal/Installation
1 - GEARSHIFT BOOT
2 - CENTER CONSOLE
21 - 86 T850 MANUAL TRANSAXLERS
GEARSHIFT CABLE - SELECTOR (Continued)
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(15) Install gearshift knob to gearshift lever (Fig.
183). Orient shift pattern1¤4-turn clockwise, push
down and rotate1¤4-turn counter-clockwise and
release. Secure boot to knob.
(16) Connect battery negative cable.
GEARSHIFT KNOB
REMOVAL
(1) Separate gearshift boot from base of knob.
(2) Remove gearshift knob by pushing down and
rotating
1¤4-turn clockwise (Fig. 184).
INSTALLATION
(1) Install gearshift knob pattern1¤4-turn clock-
wise, press down, and rotate1¤4-turn counter clock-
wise (Fig. 184).
(2) Secure gearshift boot to base of knob.
GEARSHIFT MECHANISM
REMOVAL
(1) Disconnect battery negative cable.
(2) Remove gearshift knob by pushing down and
rotating
1¤4turn clock-wise (Fig. 185).
Fig. 183 Gearshift Knob Removal/Installation
1 - GEARSHIFT KNOB
2 - GEARSHIFT LEVER
Fig. 184 Gearshift Knob Removal/Installation
1 - GEARSHIFT KNOB
2 - GEARSHIFT LEVER
Fig. 185 Gearshift Knob Removal/Installation
1 - GEARSHIFT KNOB
2 - GEARSHIFT LEVER
RST850 MANUAL TRANSAXLE21-87
GEARSHIFT CABLE - SELECTOR (Continued)
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(7) Install cupholder plugs (Fig. 202).
(8) Install gearshift boot to console (Fig. 203).
Secure with three (3) retainer clips.(9) Install gearshift knob to gearshift lever (Fig.
204). Orient shift pattern1¤4-turn clockwise, push
down and rotate1¤4-turn counter-clockwise and
release. Secure boot to knob.
(10) Connect battery negative cable.
Fig. 202 Cup Holder Plugs
1 - CUPHOLDER PLUG (2)
Fig. 203 Gearshift Boot Removal/Installation
1 - GEARSHIFT BOOT
2 - CENTER CONSOLE
Fig. 204 Gearshift Knob Removal/Installation
1 - GEARSHIFT KNOB
2 - GEARSHIFT LEVER
21 - 92 T850 MANUAL TRANSAXLERS
GEARSHIFT MECHANISM (Continued)
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(3) Remove input bearing. Place input shaft
assembly onto arbor press table, with the input bear-
ing supported by bearing splitter (Fig. 207). Using
adapter 8486-4, press bearing off of shaft, while
helper supports shaft to prevent dropping.
(4) Place input shaft assembly back into fixture
8487. Secure fixture to bench with fasteners, or
secure to bench vise.NOTE: 5th gear nut is staked to the shaft. If neces-
sary, grind stake area to ease removal, but use care
not to contact gear.
(5) Remove 5th gear nut with wrench 8478 (Fig.
208). Discard nut and use a new one upon assembly.
(6) Remove 5th gear with arbor press and bearing
splitter.
(7) Remove 4th gear and needle bearing (if
equipped) (Fig. 209).
Fig. 206 Input Bearing Snap Ring Removal
1 - SNAP RING
2 - INPUT BEARING
Fig. 207 Input Bearing Removal
1 - ARBOR PRESS RAM
2 - ADAPTER 8486-4
3 - INPUT BEARING
4 - BEARING SPLITTER
Fig. 208 5th Gear Nut Removal/Installation
1 - WRENCH 8478
2 - 5TH GEAR NUT
Fig. 209 4th Gear Removal/Installation
1 - 4th GEAR
21 - 94 T850 MANUAL TRANSAXLERS
INPUT SHAFT (Continued)
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(9) Disconnect gear shift cable from manual valve
lever and upper mount bracket (Fig. 12).
(10) Disconnect crankshaft position sensor (if
equipped). Remove sensor from bellhousing.(11) Reposition leak detection pump harness and
hoses.
(12) Remove rear mount bracket-to-transaxle case
bolts (Fig. 13).
(13) Remove transaxle upper bellhousing-to-block
bolts.
(14) Raise vehicle on hoist.
(15) Remove transaxle oil pan and drain fluid into
suitable container.
(16) Remove front wheel/tire assemblies.
(17) Remove left and right halfshaft assemblies.
(Refer to 3 - DIFFERENTIAL & DRIVELINE/HALF
SHAFT - REMOVAL)
(18) AWD models: Remove power transfer unit.
(Refer to 21 - TRANSMISSION/TRANSAXLE/
POWER TRANSFER UNIT - REMOVAL)
(19) Remove rear mount bracket-to-transaxle case
lower (horizontal) bolt (Fig. 13).
(20) Remove front mount/bracket assembly.
(21) Remove starter motor.
(22) Remove lateral bending brace.
(23) Remove inspection cover.
(24) Remove torque converter-to-drive plate bolts.
(25) Support engine/transaxle assembly at engine
oil pan with screw jack and wood block.
(26) Partially remove left wheelhouse splash shield
to gain access to and remove upper mount thru-bolt
(Fig. 14).
(27) Lower engine/transaxle assembly with screw
jack.
(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).
Fig. 11 Component Connector LocationÐTypical
1 - SOLENOID/PRESSURE SWITCH ASSY. CONNECTOR
2 - INPUT SPEED SENSOR CONNECTOR
3 - OUTPUT SPEED SENSOR CONNECTOR
4 - TRANSMISSION RANGE SENSOR CONNECTOR
Fig. 12 Gearshift Cable at Transaxle - Typical
1 - MANUAL VALVE LEVER
2 - GEAR SHIFT CABLE
3 - UPPER MOUNT BRACKET
RS41TE AUTOMATIC TRANSAXLE21 - 125
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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INSTALLATION
(1) Fish gear shift cable dash panel opening into
engine compartment and secure grommet (Fig. 218).
(2) Install gear shift cable through column bracket
(Fig. 219) until audible ªclickº is heard.(3) Connect gear shift cable to gear shift lever (Fig.
219).
Fig. 216 Gearshift Cable at Column
1 - GEAR SHIFT CABLE
Fig. 217 Gearshift Cable/Grommet at Dash Panel
1 - CABLE GROMMET
2 - DASH PANEL
Fig. 218 Gearshift Cable/Grommet at Dash Panel
1 - CABLE GROMMET
2 - DASH PANEL
Fig. 219 Gearshift Cable at Column
1 - GEAR SHIFT CABLE
RS41TE AUTOMATIC TRANSAXLE21 - 205
GEAR SHIFT CABLE (Continued)
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TORQUE CONVERTER CLUTCH (TCC)
In a standard torque converter, the impeller and
turbine are rotating at about the same speed and the
stator is freewheeling, providing no torque multipli-
cation. By applying the turbine's piston to the front
cover's friction material, a total converter engage-
ment can be obtained. The result of this engagement
is a direct 1:1 mechanical link between the engine
and the transmission.
The engagement and disengagement of the TCC
are automatic and controlled by the Powertrain Con-
trol Module (PCM). The engagement cannot be acti-
vated in the lower gears because it eliminates the
torque multiplication effect of the torque converter
necessary for acceleration. Inputs that determine
clutch engagement are: coolant temperature, vehicle
speed and throttle position. The torque converter
clutch is engaged by the clutch solenoid on the valve
body. The clutch will engage at approximately 56
km/h (35 mph) with light throttle, after the shift to
third gear.
REMOVAL
(1) Remove transmission and torque converter
from vehicle. (Refer to 21 - TRANSMISSION/TRANS-
AXLE/AUTOMATIC - 41TE - REMOVAL)
(2) Place a suitable drain pan under the converter
housing end of the transmission.
CAUTION: Verify that transmission is secure on the
lifting device or work surface, the center of gravity
of the transmission will shift when the torque con-
verter is removed creating an unstable condition.
The torque converter is a heavy unit. Use caution
when separating the torque converter from the
transmission.
(3) Pull the torque converter forward until the cen-
ter hub clears the oil pump seal.
(4) Separate the torque converter from the trans-
mission.
INSTALLATION
Check converter hub and drive notches for sharp
edges, burrs, scratches, or nicks. Polish the hub and
notches with 320/400 grit paper or crocus cloth if nec-
essary. The hub must be smooth to avoid damaging
the pump seal at installation.
(1) Lubricate converter hub and oil pump seal lip
with transmission fluid.
(2) Place torque converter in position on transmis-
sion.
CAUTION: Do not damage oil pump seal or bushing
while inserting torque converter into the front of the
transmission.(3) Align torque converter to oil pump seal open-
ing.
(4) Insert torque converter hub into oil pump.
(5) While pushing torque converter inward, rotate
converter until converter is fully seated in the oil
pump gears.
(6) Check converter seating with a scale and
straightedge (Fig. 326). Surface of converter lugs
should be 1/2 in. to rear of straightedge when con-
verter is fully seated.
(7) If necessary, temporarily secure converter with
C-clamp attached to the converter housing.
(8) Install the transmission in the vehicle. (Refer
to 21 - TRANSMISSION/TRANSAXLE/AUTOMATIC
- 41TE - INSTALLATION)
(9) Fill the transmission with the recommended
fluid. (Refer to 21 - TRANSMISSION/TRANSAXLE/
AUTOMATIC - 41TE/FLUID - STANDARD PROCE-
DURE)TRANSMISSION CONTROL
RELAY
DESCRIPTION
The transmission control relay (Fig. 327) is located
in the Intelligent Power Module (IPM), which is
located on the left side of the engine compartment
between the battery and left fender.
Fig. 326 Checking Torque Converter Seating
1 - SCALE
2 - STRAIGHTEDGE
RS41TE AUTOMATIC TRANSAXLE21 - 247
TORQUE CONVERTER (Continued)
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