Chrysler Pacifica. Manual — part 755
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.
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.
Fig. 5 Air Pressure Test Plate
1 - TOOL 6056
2 - ACCUMULATORS
Fig. 6 Testing Reverse Clutch
1 - TOOL 6056
2 - AIR NOZZLE
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
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41AE/TE AUTOMATIC TRANSAXLE
21 - 15
41AE/TE AUTOMATIC TRANSAXLE (Continued)
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 converter itself. Pump seal or gasket leaks
usually travel down the inside of the converter hous-
ing (Fig. 7).
TORQUE CONVERTER LEAKAGE
Possible sources of torque converter leakage are:
• Torque converter weld leaks at the outside diam-
eter weld (Fig. 8).
• Torque converter hub weld (Fig. 8).
REMOVAL
(1) Open hood.
(2) Disconnect battery cables (Fig. 9).
(3) Remove battery hold-down clamp.
(4) Remove battery (Fig. 9).
(5) Remove battery tray (Fig. 10). Disconnect bat-
tery temperature sensor.
(6) Disconnect gearshift cable from transaxle man-
ual valve lever.
(7) Disconnect oil cooler lines from transaxle using
Tool 8875A. (Refer to 7 - COOLING/TRANSMISSION
- STANDARD PROCEDURE)
(8) Remove ground cable/bolt from top of transaxle
case.
Fig. 8 Converter Leak Points - Typical
1 - OUTSIDE DIAMETER WELD
2 - TORQUE CONVERTER HUB WELD
3 - STARTER RING GEAR
4 - LUG
Fig. 9 Battery
1 - BATTERY POSITIVE CABLE
2 - THERMO-WRAP
3 - BATTERY NEGATIVE CABLE
Fig. 10 Battery Tray
1 - DRAIN HOLE/HOSE ATTACHMENT
2 - BATTERY TRAY
3 - BOLTS
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41AE/TE AUTOMATIC TRANSAXLE
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41AE/TE AUTOMATIC TRANSAXLE (Continued)
(9) Disconnect and remove crankshaft position sen-
sor (Fig. 11).
(10) Disconnect input speed sensor connector (Fig.
12).
(11) Disconnect output speed sensor connector
(Fig. 12).
(12) Disconnect transaxle range sensor connector
(Fig. 12).
(13) Disconnect solenoid/pressure switch assembly
connector (Fig. 12).
(14) Release transaxle harness from retainers and
position out of way (Fig. 13).
(15) Remove coolant bypass tube-to-engine and
transaxle fasteners.
Fig. 11 Crankshaft Position Sensor
1 - CRANK POSITION SENSOR
2 - CONNECTOR
Fig. 12 Transmission Connectors
1 - SOLENOID PACK CONNECTOR
2 - INPUT SPEED SENSOR CONNECTOR
3 - OUTPUT SPEED SENSOR CONNECTOR
4 - TRANSMISSION RANGE SENSOR CONNECTOR
Fig. 13 Transmission Harness/Retainers
1 - TRANSMISSION HARNESS
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41AE/TE AUTOMATIC TRANSAXLE
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41AE/TE AUTOMATIC TRANSAXLE (Continued)
(16) Disconnect front brake lines from the hydrau-
lic control unit (Fig. 14). Position out of way for
removal clearance.
(17) Remove intermediate shaft extension from
steering gear (Fig. 16). Remove roll pin using Tool
6831A (Fig. 15). Slide shaft extension off of gear.
(18) Install overhead powertrain support fixture
(Tool 8534B and adapter kit 8534-12) (Fig. 17):
Fig. 14 Brake Lines at Hydraulic Control Unit
1 - FRONT BRAKE LINES
Fig. 15 Roll Pin Removal
1 - TOOL 6831A
2 - ROLL PIN
3 - STEERING GEAR
4 - INTERMEDIATE SHAFT EXTENSION
Fig. 16 Intermediate Shaft Extension at Gear
1 - INTERMEDIATE SHAFT EXTENSION
2 - ROLL PIN
3 - STEERING GEAR
Fig. 17 Engine Support Fixture 8534B
1 - SUPPORT TUBE 8534-1
2 - BRACKET/SLEEVE 8534-2
3 - CROSS-BAR 8534-3
4 - CLAMP 8534-5
5 - LIFT HOOK ASSEMBLY
6 - LIFT BRACKET/BOLT 8534-15
7 - LIFT BRACKET/BOLT 8534-7
8 - LIFT BRACKET/BOLT 8534-8
9 - SUPPORT LEG 8534-4
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41AE/TE AUTOMATIC TRANSAXLE
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41AE/TE AUTOMATIC TRANSAXLE (Continued)
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