2001 CHRYSLER VOYAGER sensor

HYDRAULIC CONTROL PRESSURE
ADJUSTMENTS
LINE PRESSURE
An incorrect throttle pressure setting will cause
incorrect line pressure readings even though line
pressure adjustment is correct. Always inspect and
correct throttle pressure adjustment before adjusting
the line pressure.
The approximate adjustment for line pressure is
1-5/16 inches, measured from valve body to inner
edge of adjusting nut. However, due to manufactur-
ing tolerances, the adjustment can be varied to
obtain specified line pressure.
The adjusting screw may be turned with an Allen
wrench. One complete turn of adjusting screw
changes closed throttle line pressure approximately
1-2/3 psi. Turning adjusting screw counterclockwise
increases pressure, and clockwise decreases pressure.
THROTTLE PRESSURE
Throttle pressures cannot be tested accurately;
therefore, the adjustment should be measured if a
malfunction is evident.
(1) Insert gauge pin of Tool C-3763 between the
throttle lever cam and kickdown valve.
(2) By pushing in on tool, compress kickdown
valve against its spring so throttle valve is com-
pletely bottomed inside the valve body.
(3) While compressing spring, turn throttle lever
stop screw with adapter C-4553. Turn until head of
screw touches throttle lever tang, with throttle lever
cam touching tool and throttle valve bottomed. Be
sure adjustment is made with spring fully com-
pressed and valve bottomed in the valve body.
VEHICLE SPEED SENSOR/
PINION GEAR
REMOVAL
(1) Remove harness connector from sensor (Fig.
340) . Be sure weather seal stays on harness connec-
tor.
(2) Remove bolt securing the sensor in the exten-
sion housing (Fig. 340) .
(3) Carefully pull sensor and pinion gear assembly
out of extension housing.
(4) Remove pinion gear from sensor (Fig. 340) .
(5) Inspect pinion gear for damage (missing teeth,
etc.) and replace as necessary.
NOTE: When removing vehicle speed sensor for
any reason, a new o-ring MUST be used.
INSTALLATION
(1) Install vehicle speed sensor and pinion gear to
extension housing with new o-ring (Fig. 340).
(2) Install bolt and torque to 7 N´m (60 in. lbs.).
(3) Connect connector.
(4) Lower vehicle.
Fig. 339 Transaxle Oil Pan Bolts
1 - TRANSAXLE OIL PAN
2 - OIL PAN BOLTS
Fig. 340 Vehicle Speed Sensor Removal/Installation
1 - CONNECTOR
2 - SPEEDO PINION
3 - O-RING
4 - SENSOR
RSAUTOMATIC - 31TH21 - 157
VALVE BODY (Continued)

AUTOMATIC - 41TE
TABLE OF CONTENTS
page page
AUTOMATIC - 41TE
DESCRIPTION..........................159
OPERATION............................159
DIAGNOSIS AND TESTING................159
41TE TRANSAXLE GENERAL DIAGNOSIS . . . 159
ROAD TEST..........................161
HYDRAULIC PRESSURE TESTS..........162
CLUTCH AIR PRESSURE TESTS..........164
TORQUE CONVERTER HOUSING FLUID
LEAKAGE............................164
REMOVAL.............................165
DISASSEMBLY..........................169
ASSEMBLY............................186
INSTALLATION..........................209
SCHEMATICS AND DIAGRAMS.............212
SPECIFICATIONS........................225
SPECIAL TOOLS........................227
ACCUMULATOR
DESCRIPTION..........................232
OPERATION............................233
AUTOSTICK SWITCH
DESCRIPTION..........................233
OPERATION............................233
DRIVING CLUTCHES
DESCRIPTION..........................234
OPERATION............................234
FINAL DRIVE
DESCRIPTION..........................234
OPERATION............................234
DISASSEMBLY..........................235
ASSEMBLY............................240
ADJUSTMENTS.........................243
FLUID
STANDARD PROCEDURE.................246
FLUID LEVEL AND CONDITION CHECK.....246
FLUID AND FILTER SERVICE.............246
GEAR SHIFT CABLE
REMOVAL.............................248
INSTALLATION..........................250
ADJUSTMENTS.........................251
HOLDING CLUTCHES
DESCRIPTION..........................251
OPERATION............................251
INPUT CLUTCH ASSEMBLY
DISASSEMBLY..........................252
ASSEMBLY............................259
OIL PUMP
DESCRIPTION..........................269
OPERATION............................269STANDARD PROCEDURE.................269
OIL PUMP VOLUME CHECK..............269
DISASSEMBLY..........................270
ASSEMBLY............................271
PLANETARY GEARTRAIN
DESCRIPTION..........................271
OPERATION............................271
SEAL - OIL PUMP
REMOVAL.............................271
INSTALLATION..........................272
SHIFT INTERLOCK SOLENOID
DESCRIPTION..........................272
OPERATION............................273
DIAGNOSIS AND TESTING................274
BRAKE/TRANSMISSION SHIFT INTERLOCK
SOLENOID...........................274
REMOVAL.............................274
INSTALLATION..........................275
SOLENOID/PRESSURE SWITCH ASSEMBLY
DESCRIPTION..........................276
OPERATION............................276
REMOVAL.............................277
INSTALLATION..........................277
SPEED SENSOR - INPUT
DESCRIPTION..........................278
OPERATION............................278
REMOVAL.............................279
INSTALLATION..........................279
SPEED SENSOR - OUTPUT
DESCRIPTION..........................280
OPERATION............................280
REMOVAL.............................280
INSTALLATION..........................281
TORQUE CONVERTER
DESCRIPTION..........................281
OPERATION............................284
REMOVAL.............................286
INSTALLATION..........................286
TRANSMISSION CONTROL RELAY
DESCRIPTION..........................287
OPERATION............................287
TRANSMISSION RANGE SENSOR
DESCRIPTION..........................287
OPERATION............................287
REMOVAL.............................288
INSTALLATION..........................288
TORQUE REDUCTION LINK (TRD)
DESCRIPTION..........................289
OPERATION............................289
21 - 158 AUTOMATIC - 41TERS

VALVE BODY
DESCRIPTION..........................289
OPERATION............................290
REMOVAL.............................290DISASSEMBLY..........................292
ASSEMBLY............................296
INSTALLATION..........................301
AUTOMATIC - 41TE
TRANSAXLE IDENTIFICATION
DESCRIPTION
The 41TE (Fig. 1) is a four-speed transaxle that is
a conventional hydraulic/mechanical assembly with
an integral differential, and is controlled with adap-
tive electronic controls and monitors. The hydraulic
system of the transaxle consists of the transaxle
fluid, fluid passages, hydraulic valves, and various
line pressure control components. An input clutch
assembly which houses the underdrive, overdrive,
and reverse clutches is used. It also utilizes separate
holding clutches: 2nd/4th gear and Low/Reverse. The
primary mechanical components of the transaxle con-
sist of the following:
²Three multiple disc input clutches
²Two multiple disc holding clutches
²Four hydraulic accumulators
²Two planetary gear sets
²Hydraulic oil pump
²Valve body
²Solenoid/Pressure switch assembly
²Integral differential assembly
Control of the transaxle is accomplished by fully
adaptive electronics. Optimum shift scheduling is
accomplished through continuous real-time sensor
feedback information provided to the Transmission
Control Module (TCM).
The TCM is the heart of the electronic control sys-
tem and relies on information from various direct
and indirect inputs (sensors, switches, etc.) to deter-
mine driver demand and vehicle operating condi-
tions. With this information, the TCM can calculate
and perform timely and quality shifts through vari-
ous output or control devices (solenoid pack, trans-
mission control relay, etc.).
The TCM also performs certain self-diagnostic
functions and provides comprehensive information
(sensor data, DTC's, etc.) which is helpful in proper
diagnosis and repair. This information can be viewed
with the DRB scan tool.
The 41TE transaxle identification code is a series
of digits printed on a bar-code label that is fixed to
the transaxle case as shown in (Fig. 2).For example, the identification code K 821 1125
1316 can be broken down as follows:
²K = Kokomo Transmission Plant
²821 = Last three digits of the transaxle part
number
²1125 = Build date
²1316 = Build sequence number
If the tag is not legible or missing, the ªPKº num-
ber, which is stamped into the transaxle case behind
the transfer gear cover, can be referred to for identi-
fication. This number differs slightly in that it con-
tains the entire transaxle part number, rather than
the last three digits.
OPERATION
Transmission output is directed to an integral dif-
ferential by a transfer gear system in the following
input-to-output ratios:
First...............................2.84 : 1
Second.............................1.57 : 1
Third..............................1.00 : 1
Overdrive...........................0.69 : 1
Reverse............................2.21 : 1
DIAGNOSIS AND TESTING - 41TE TRANSAXLE
GENERAL DIAGNOSIS
NOTE: Before attempting any repair on a 41TE four-
speed automatic transaxle, check for diagnostic
trouble codes (DTC's) using the DRB scan tool.
Refer to the Transmission Diagnostic Procedures
Manual.
Transaxle malfunctions may be caused by these
general conditions:
²Poor engine performance
²Improper adjustments
²Hydraulic malfunctions
²Mechanical malfunctions
²Electronic malfunctions
Diagnosis of these problems should always begin
by checking the easily accessible variables: fluid level
and condition, gearshift cable adjustment. Then per-
form a road test to determine if the problem has been
corrected or that more diagnosis is necessary. If the
problem persists after the preliminary tests and cor-
rections are completed, hydraulic pressure checks
should be performed.
RSAUTOMATIC - 41TE21 - 159

Fig. 1 41TE Transaxle
1 - CASE
2 - INPUT SPEED SENSOR
3 - UNDERDRIVE CLUTCH
4 - OVERDRIVE CLUTCH
5 - REVERSE CLUTCH
6 - 2/4 CLUTCH
7 - LOW/REVERSE CLUTCH
8 - OUTPUT SPEED SENSOR
9 - PLANETARY GEAR SET10 - OUTPUT SHAFT GEAR
11 - TRANSFER SHAFT
12 - TRANSFER SHAFT GEAR
13 - DIFFERENTIAL
14 - OIL PUMP
15 - TORQUE CONVERTER
16 - TORQUE CONVERTER CLUTCH
21 - 160 AUTOMATIC - 41TERS
AUTOMATIC - 41TE (Continued)

(4) Remove fluid level indicator/tube assembly.
Plug opening to prevent debris from entering trans-
axle.
(5) Using a blade or suitable hose cutter, cut trans-
axle oil cooler lines off flush with fittings. Plug lines
and fittings to prevent debris from entering transaxle
or cooler circuit. A service splice kit will be installed
upon reassembly.
(6) Disconnect input and output shaft speed sensor
connectors (Fig. 10).
(7) Disconnect transmission range sensor (TRS)
connector (Fig. 10).
(8) Disconnect solenoid/pressure switch assembly
connector (Fig. 10).
(9) Disconnect gear shift cable from manual valve
lever and upper mount bracket (Fig. 11).
(10) Disconnect crankshaft position sensor (if
equipped).
(11) Reposition leak detection pump harness and
hoses.
(12) Remove wiper module assembly to gain access
to and remove rear mount bracket bolts. (Refer to 8 -
ELECTRICAL/WIPERS/WASHERS/WIPER MOD-
ULE - REMOVAL)
(13) Remove rear mount bracket-to-transaxle case
bolts (Fig. 12).
(14) Remove transaxle upper bellhousing-to-block
bolts.
(15) Raise vehicle on hoist.
(16) Remove transaxle oil pan and drain fluid into
suitable container.
(17) Remove front wheel/tire assemblies.
Fig. 9 Coolant Recovery Bottle
1 - UPPER BOLT ATTACHING TO BATTERY TRAY
2 - COOLANT RECOVERY/RESERVE CONTAINER
3 - UPPER BOLT
4 - HOSE
5 - LOWER BOLT (QTY. 2)
6 - LEFT SIDE FRAME RAIL
Fig. 10 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. 11 Gearshift Cable at Transaxle - Typical
1 - MANUAL VALVE LEVER
2 - GEAR SHIFT CABLE
3 - UPPER MOUNT BRACKET
21 - 166 AUTOMATIC - 41TERS
AUTOMATIC - 41TE (Continued)

DISASSEMBLY
CAUTION: If transaxle failure has occurred, it is
necessary to flush the transaxle oil cooler and lines
to remove debris and particles that could contami-
nate and/or fail a new or rebuilt unit. (Refer to 7 -
COOLING/TRANSMISSION - STANDARD PROCE-
DURE)
NOTE: If transaxle is being overhauled (clutch
and/or seal replacement) or replaced, it is neces-
sary to perform the TCM Quick Learn Procedure.
(Refer to 8 - ELECTRICAL/ELECTRONIC CONTROL
MODULES/TRANSMISSION CONTROL MODULE -
STANDARD PROCEDURE)
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. 17).(4) Remove oil pan-to-case bolts (Fig. 18).
(5) Remove oil pan (Fig. 19).
(6) Remove oil filter (Fig. 20).
(7) Turn manual valve fully clock-wise to get park
rod into position for removal.
(8) Remove valve body-to-case bolts (Fig. 21).
CAUTION: Do not handle the valve body assembly
from the manual valve. Damage can result.
Fig. 17 Solenoid/Pressure Switch Assembly and
Gasket
1 - SOLENOID/PRESSURE SWITCH ASSEMBLY
2 - GASKET
Fig. 18 Remove Oil Pan Bolts
1 - OIL PAN BOLTS (USE RTV UNDER BOLT HEADS)
Fig. 19 Remove Oil Pan
1 - OIL PAN
2 - 1/8 INCH BEAD OF RTV SEALANT
3 - OIL FILTER
RSAUTOMATIC - 41TE21 - 169
AUTOMATIC - 41TE (Continued)

(16) Remove oil pump-to-case bolts (Fig. 32).
CAUTION: Be sure input speed sensor is removed
before removing oil pump.
(17) Install pullers Tool C-3752 as shown in (Fig.
33).
(18) Remove oil pump assembly (Fig. 34) (Fig. 35).
(19) Remove oil pump gasket (Fig. 36).
CAUTION: If transaxle failure has occurred, the
cooler bypass valve must be replaced. Do not
re-use or attempt to clean valve.
Fig. 32 Remove Pump Attaching Bolts
1 - PUMP ATTACHING BOLTS
2 - PUMP HOUSING
Fig. 33 Install Tool C-3752
1 - PULLERS TOOL C-3752
2 - PUMP
Fig. 34 Remove Oil Pump
1 - ªPUSH INº ON INPUT SHAFT WHILE REMOVING PUMP
Fig. 35 Oil Pump Removed
1 - OIL PUMP
2 - GASKET
Fig. 36 Remove Oil Pump Gasket
1 - PUMP GASKET
RSAUTOMATIC - 41TE21 - 173
AUTOMATIC - 41TE (Continued)

(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. 142). 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.
143), the input clutch assembly is not seated prop-
erly.
(c) Remove oil pump o-ring (Fig. 144).Be sure
to reinstall oil pump o-ring after selecting the
proper #4 thrust plate.
(d) Set up input shaft for measurement with
Indicator Set C3339 and End Play Set 8266 as
shown in (Fig. 145).
(e) Measure the input shaft end play with the
transaxle in the vertical position.Input shaft end
play must within 0.005 to 0.025 inch.For exam-
ple, 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 reading of
0.020 inch which is within specifications.
(f) Refer to the No. 4 thrust plate chart to select
the proper No. 4 thrust plate:
Fig. 142 Select Thinnest No. 4 Thrust Plate
1 - OVERDRIVE SHAFT ASSEMBLY
2 - #4 THRUST PLATE (SELECT)
3 - 3 DABS OF PETROLATUM FOR RETENTION
Fig. 143 View Through Input Speed Sensor Hole
1 - INPUT CLUTCH RETAINER
2 - INPUT SPEED SENSOR HOLE
3 - OIL COOLER FITTINGS
Fig. 144 Remove Oil Pump O-Ring
1 - OIL PUMP ASSEMBLY
2 - O-RING
RSAUTOMATIC - 41TE21 - 203
AUTOMATIC - 41TE (Continued)