2005 CHRYSLER CARAVAN oil level

41TE AUTOMATIC TRANSAXLE
TABLE OF CONTENTS
page page
41TE AUTOMATIC TRANSAXLE
DESCRIPTION........................147
OPERATION..........................149
DIAGNOSIS AND TESTING
DIAGNOSIS AND TESTING - 4XTE
TRANSAXLE GENERAL DIAGNOSIS......149
DIAGNOSIS AND TESTING - ROAD TEST . . 150
DIAGNOSIS AND TESTING - HYDRAULIC
PRESSURE TESTS...................150
DIAGNOSIS AND TESTING - CLUTCH AIR
PRESSURE TESTS...................153
DIAGNOSIS AND TESTING - TORQUE
CONVERTER HOUSING FLUID LEAKAGE . . 154
REMOVAL............................154
DISASSEMBLY........................157
ASSEMBLY...........................174
INSTALLATION........................196
SCHEMATICS AND DIAGRAMS
4XTE TRANSAXLE HYDRAULIC
SCHEMATICS.......................199
SPECIFICATIONS - 41TE TRANSAXLE......211
SPECIAL TOOLS
41TE AUTOMATIC TRANSAXLE.........213
ACCUMULATOR
DESCRIPTION........................218
OPERATION..........................218
DRIVING CLUTCHES
DESCRIPTION........................219
OPERATION..........................219
FINAL DRIVE
DESCRIPTION........................219
OPERATION..........................220
DISASSEMBLY........................220
ASSEMBLY...........................224
ADJUSTMENTS
ADJUSTMENT - DIFFERENTIAL BEARING
PRELOAD..........................228
FLUID
STANDARD PROCEDURE
FLUID LEVEL AND CONDITION CHECK . . . 230
STANDARD PROCEDURE - FLUID AND
FILTER SERVICE.....................231
GEAR SHIFT CABLE
REMOVAL............................233
INSTALLATION........................234
ADJUSTMENTS
GEARSHIFT CABLE ADJUSTMENT.......235
HOLDING CLUTCHES
DESCRIPTION........................236
OPERATION..........................236INPUT CLUTCH ASSEMBLY
DISASSEMBLY........................237
ASSEMBLY...........................246
OIL PUMP
DESCRIPTION........................261
OPERATION..........................261
DISASSEMBLY........................261
ASSEMBLY...........................263
PLANETARY GEARTRAIN
DESCRIPTION........................263
OPERATION..........................263
SEAL - OIL PUMP
REMOVAL............................264
INSTALLATION........................264
SHIFT INTERLOCK SOLENOID
DESCRIPTION........................264
OPERATION..........................265
DIAGNOSIS AND TESTING - BRAKE/
TRANSMISSION SHIFT INTERLOCK
SOLENOID..........................266
REMOVAL............................266
INSTALLATION........................267
SOLENOID/PRESSURE SWITCH ASSY
DESCRIPTION........................268
OPERATION..........................268
REMOVAL............................269
INSTALLATION........................270
SPEED SENSOR - INPUT
DESCRIPTION........................271
OPERATION..........................271
REMOVAL............................272
INSTALLATION........................272
SPEED SENSOR - OUTPUT
DESCRIPTION........................273
OPERATION..........................273
REMOVAL............................274
INSTALLATION........................274
TORQUE CONVERTER
DESCRIPTION........................275
OPERATION..........................278
REMOVAL............................280
INSTALLATION........................280
TRANSMISSION CONTROL RELAY
DESCRIPTION........................281
OPERATION..........................281
TRANSMISSION RANGE SENSOR
DESCRIPTION........................281
OPERATION..........................282
REMOVAL............................282
INSTALLATION........................282
21 - 146 41TE AUTOMATIC TRANSAXLERS

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
21 - 154 41TE AUTOMATIC TRANSAXLERS
41TE AUTOMATIC TRANSAXLE (Continued)

(3) Remove coolant recovery bottle (Fig. 10).
(4) Remove fluid level indicator/tube assembly.
Plug opening to prevent debris from entering trans-
axle.
(5) Disconnect transaxle oil cooler lines using Tool
8875A. (Refer to 7 - COOLING/TRANSMISSION -
STANDARD PROCEDURE). Install plugs to prevent
debris intrusion.
(6) Disconnect input and output shaft speed sensor
connectors (Fig. 11).
(7) Disconnect transmission range sensor (TRS)
connector (Fig. 11).
(8) Disconnect solenoid/pressure switch assembly
connector (Fig. 11).
(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.
Fig. 10 Coolant Recovery Bottle
1 - COOLANT RECOVERY CONTAINER
2 - HOSE
3 - BOLT
4 - SUB FRAME RAIL
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 - 155
41TE AUTOMATIC TRANSAXLE (Continued)

(69) Install and tighten solenoid/pressure switch
assembly-to-transaxle case bolts to 12 N´m (110 in.
lbs.) (Fig. 158).
(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 ªQuick-Learnº procedure.
(Refer to 8 - ELECTRICAL/ELECTRONIC CONTROL
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. 159).
(3) Raise engine/transaxle assembly into position.
Install and torque upper mount-to-bracket thru-bolt
to 75 N´m (55 ft. lbs.) (Fig. 159).
(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.
(11) Align and install rear mount bracket-to-case
bolts by hand (Fig. 160). Torque horizontal bolt to
102 N´m (75 ft. lbs.).(12) AWD models: Install power transfer unit.
(Refer to 21 - TRANSMISSION/TRANSAXLE/
POWER TRANSFER UNIT - INSTALLATION)
(13) Install left and right halfshaft assemblies.
(Refer to 3 - DIFFERENTIAL & DRIVELINE/HALF
SHAFT - INSTALLATION)
(14) Install front wheel/tire assemblies.
(15) Lower vehicle.
(16) Torque remaining rear mount bracket-to-tran-
saxle vertical bolts (Fig. 160) to 102 N´m (75 ft. lbs.).
(17) Install transaxle upper bellhousing-to-block
bolts and torque to 95 N´m (70 ft. lbs.).
(18) Install and connect crank position sensor (if
equipped).
(19) Connect gearshift cable to upper mount
bracket and transaxle manual valve lever (Fig. 161).
(20) Connect solenoid/pressure switch assembly
(Fig. 162).
(21) Connect transmission range sensor connector
(Fig. 162).
(22) Connect input and output speed sensor con-
nectors (Fig. 162).
(23) Remove plugs and connect transaxle oil cooler
lines. (Refer to 7 - COOLING/TRANSMISSION -
STANDARD PROCEDURE)
(24) Remove plug and Install fluid level indicator/
tube assembly.
Fig. 158 Solenoid Pack-to-Transaxle Bolts
1 - BOLTS
2 - SOLENOID AND PRESSURE SWITCH ASSEMBLY
Fig. 159 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 - 196 41TE AUTOMATIC TRANSAXLERS
41TE AUTOMATIC TRANSAXLE (Continued)

CAUTION: Do not damage the transaxle case and/or
differential retainer sealing surface.
(9) Using the end play measurement that was
determined, add 0.18mm (0.007 inch). This should
give you between 5-18 inch pounds of bearing pre-
load. Refer to the Differential Bearing Shim Chart to
determine which shim to use.
(10) Remove the differential bearing retainer.
Remove the bearing cup.
(11) Install the oil baffle. Install the proper shim
combination under the bearing cup.
(12) Install the differential bearing retainer. Seal
the retainer to the housing with MopartSilicone
Rubber Adhesive Sealant. Torque bolts to 28 N´m
(250 in. lbs.).
(13) Using Miller Special Tool L-4436-A and an
inch-pound torque wrench, check the turning torque
of the differential (Fig. 204). The turning torque
should be between 5-18 inch-pounds.
NOTE: If turning torque is too high install a 0.05mm
(0.002 inch) thicker shim. If the turning torque is too
low, install a 0.05mm (0.002 inch) thinner shim.
Repeat until 5-18 inch-pounds of turning torque is
obtained.
FLUID
STANDARD PROCEDURE
FLUID LEVEL AND CONDITION CHECK
NOTE: Only transmission fluid of the type labeled
Mopar ATF+4 (Automatic Transmission Fluid)
should be used in this transaxle.
FLUID LEVEL CHECK
The transmission sump has a fluid level indicator
(dipstick) to check oil similar to most automatic
transmissions. It is located on the left side of the
engine. Be sure to wipe all dirt from dipstick handle
before removing.
The torque converter fills in both the P Park and N
Neutral positions. Place the selector lever in P Park
to be sure that the fluid level check is accurate.The
engine should be running at idle speed for at
least one minute, with the vehicle on level
ground.At normal operating temperature 82É C
(180É F), the fluid level is correct if it is in the HOT
region on the oil level indicator (Fig. 205). The fluid
level should be within the COLD region of the dip-
stick at 27É C (80É F) fluid temperature.
FLUID LEVEL CHECK USING DRB
NOTE: Engine and Transaxle should be at normal
operating temperature before performing this proce-
dure.
(1) Start engine and apply parking brake.
(2) Hook up DRB scan tool and select transmis-
sion.
(3) Select sensors.
(4) Read the transmission temperature value.
(5) Compare the fluid temperature value with the
fluid temperature chart (Fig. 206).
(6) Adjust transmission fluid level shown on the
indicator according to the chart.
(7) Check transmission for leaks.
Low fluid level can cause a variety of conditions
because it allows the pump to take in air along with
the fluid. As in any hydraulic system, air bubbles
make the fluid spongy, therefore, pressures will be
low and build up slowly.
Improper filling can also raise the fluid level too
high. When the transaxle has too much fluid, the
gears churn up foam and cause the same conditions
which occur with a low fluid level.
In either case, air bubbles can cause overheating
and/or fluid oxidation, and varnishing. This can
interfere with normal valve, clutch, and accumulator
operation. Foaming can also result in fluid escaping
from the transaxle vent where it may be mistaken
for a leak.
FLUID CONDITION
Along with fluid level, it is important to check the
condition of the fluid. When the fluid smells burned,
and is contaminated with metal or friction material
particles, a complete transaxle recondition is proba-
bly required. Be sure to examine the fluid on the dip-
Fig. 205 Fluid Level Indicator
1 - FLUID LEVEL INDICATOR
21 - 230 41TE AUTOMATIC TRANSAXLERS
FINAL DRIVE (Continued)

stick closely. If there is any doubt about its condition,
drain out a sample for a double check.
MopartATF+4 (Automatic Transmission Fluid)
when new is red in color. The ATF is dyed red so it
can be identified from other fluids used in the vehicle
such as engine oil or antifreeze. The red color is not
permanent and is not an indicator of fluid condition.
As the vehicle is driven, the ATF will begin to look
darker in color and may eventually become brown.
This is normal.ATF+4 also has a unique odor that
may change with age. Consequently,odor and color
cannot be used to indicate the fluid condition
or the need for a fluid change.
After the fluid has been checked, seat the dipstick
fully to seal out water and dirt.STANDARD PROCEDURE - FLUID AND FILTER
SERVICE
NOTE: Refer to the maintenance schedules in
LUBRICATION and MAINTENANCE, or the vehicle
owner's manual, for the recommended maintenance
(fluid/filter change) intervals for this transaxle.
NOTE: Only fluids of the type labeled MoparTATF+4
(Automatic Transmission Fluid) should be used. A
filter change should be made at the time of the
transmission oil change. The magnet (on the inside
of the oil pan) should also be cleaned with a clean,
dry cloth.
NOTE: If the transaxle is disassembled for any rea-
son, the fluid and filter should be changed.
Fig. 206 Transmission Fluid Temperature Chart
1 - MAX. LEVEL2 - MIN. LEVEL
RS41TE AUTOMATIC TRANSAXLE21 - 231
FLUID (Continued)

FLUID/FILTER SERVICE (RECOMMENDED)
(1) Raise vehicle on a hoist. Refer to LUBRICA-
TION and MAINTENANCE for proper procedures.
Place a drain container with a large opening, under
transaxle oil pan.
(2) Loosen pan bolts and tap the pan at one corner
to break it loose allowing fluid to drain, then remove
the oil pan.
(3) Install a new filter and o-ring on bottom of the
valve body (Fig. 207).
(4) Clean the oil pan and magnet. Reinstall pan
using new Mopar Silicone Adhesive sealant. Tighten
oil pan bolts to 19 N´m (165 in. lbs.).
(5) Pour four quarts of MopartATF+4 (Automatic
Transmission Fluid) through the dipstick opening.
(6) Start engine and allow to idle for at least one
minute. Then, with parking and service brakes
applied, move selector lever momentarily to each
position, ending in the park or neutral position.
(7) Check the transaxle fluid level and add an
appropriate amount to bring the transaxle fluid level
to 3mm (1/8 in.) below the lowest mark on the dip-
stick (Fig. 208).
(8) Recheck the fluid level after the transaxle has
reached normal operating temperature (180ÉF.). Refer
to Fluid Level and Condition Check for the proper
fluid fill procedure.
(9) To prevent dirt from entering transaxle, make
certain that dipstick is fully seated into the dipstick
opening.
DIPSTICK TUBE FLUID SUCTION METHOD
(ALTERNATIVE)
(1) When performing the fluid suction method,
make sure the transaxle is at full operating temper-
ature.
(2) To perform the dipstick tube fluid suction
method, use a suitable fluid suction device (VaculaŸ
or equivalent).
(3) Insert the fluid suction line into the dipstick
tube.
NOTE: Verify that the suction line is inserted to the
lowest point of the transaxle oil pan. This will
ensure complete evacuation of the fluid in the pan.
(4) Follow the manufacturers recommended proce-
dure and evacuate the fluid from the transaxle.
(5) Remove the suction line from the dipstick tube.
(6) Pour four quarts of MopartATF+4 (Automatic
Transmission Fluid) through the dipstick opening.
(7) Start engine and allow to idle for at least one
minute. Then, with parking and service brakes
applied, move selector lever momentarily to each
position, ending in the park or neutral position.
(8) Check the transaxle fluid level and add an
appropriate amount to bring the transaxle fluid level
to 3mm (1/8 in.) below the lowest mark on the dip-
stick (Fig. 208).
(9) Recheck the fluid level after the transaxle has
reached normal operating temperature (180ÉF.).
(Refer to 21 - TRANSMISSION/TRANSAXLE/AUTO-
MATIC - 41TE/FLUID - STANDARD PROCEDURE)
(10) To prevent dirt from entering transaxle, make
certain that dipstick is fully seated into the dipstick
opening.
Fig. 207 Filter and O-Ring
1 - OIL FILTER
2 - O-RING
Fig. 208 Fluid Level Indicator
1 - FLUID LEVEL INDICATOR
21 - 232 41TE AUTOMATIC TRANSAXLERS
FLUID (Continued)

VALVE BODY
DESCRIPTION
The valve body assembly consists of a cast alumi-
num valve body, a separator plate, and transfer
plate. The valve body contains valves and check balls
that control fluid delivery to the torque converter
clutch, solenoid/pressure switch assembly, and fric-
tional clutches. The valve body contains the following
components (Fig. 334):
²Regulator valve
²Solenoid switch valve
²Manual valve
²Converter clutch switch valve
²Converter clutch control valve
²Torque converter regulator valve
²Low/Reverse switch valve
In addition, the valve body also contains the ther-
mal valve, #2,3&4 check balls, the #5 (overdrive)
check valve and the 2/4 accumulator assembly. (Refer
to 21 - TRANSMISSION/TRANSAXLE/AUTOMATIC
- 41TE/VALVE BODY - DISASSEMBLY)
OPERATION
NOTE: Refer to the Hydraulic Schematics for a
visual aid in determining valve location, operation
and design.
REGULATOR VALVE
The regulator valve controls hydraulic pressure in
the transaxle. It receives unregulated pressure from
the pump, which works against spring tension to
maintain oil at specific pressures. A system of sleeves
and ports allows the regulator valve to work at one of
three predetermined pressure levels. Regulated oil
pressure is also referred to as ªline pressure.º
SOLENOID SWITCH VALVE
The solenoid switch valve controls line pressure
from the LR/CC solenoid. In one position, it allows
the low/reverse clutch to be pressurized. In the other,
it directs line pressure to the converter control and
converter clutch valves.
Fig. 334 Valve Body Assembly
1 - VALVE BODY 5 - MANUAL VALVE
2 - T/C REGULATOR VALVE 6 - CONVERTER CLUTCH SWITCH VALVE
3 - L/R SWITCH VALVE 7 - SOLENOID SWITCH VALVE
4 - CONVERTER CLUTCH CONTROL VALVE 8 - REGULATOR VALVE
RS41TE AUTOMATIC TRANSAXLE21 - 283