2001 CHRYSLER VOYAGER Service Manual

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Page 3073 of 4284

CHRYSLER VOYAGER 2001 Service Manual (4) Install a NEW front planetary gear snap ring
and #4 thrust washer (Fig. 193).
SEAL - OIL PUMP
REMOVAL
The pump oil seal can be replaced without remov-
ing the pump and reaction shaft support assem

(4) Install a NEW front planetary gear snap ring
and #4 thrust washer (Fig. 193).
SEAL - OIL PUMP
REMOVAL
The pump oil seal can be replaced without remov-
ing the pump and reaction shaft support assembly
from the transaxle case.
(1) Screw seal remover Tool C-3981-B into seal
(Fig. 194), then tighten screw portion of tool to with-
draw the seal.
INSTALLATION
The pump oil seal can be replaced without remov-
ing the pump and reaction shaft support assembly
from the transaxle case.
(1) To install a new seal, place seal in opening of
the pump housing (lip side facing inward). Using Tool
C-4193 and Handle Tool C-4171, drive new seal into
housing until tool bottoms (Fig. 195).
SERVO - KICKDOWN
DESCRIPTION
The kickdown servo (Fig. 196) consists of a two-
land piston with an inner piston, a piston rod and
guide, and a return spring. The dual-land piston uses
seal rings on its outer diameters and an O-ring for
the inner piston.
OPERATION
The application of the piston is accomplished by
applying pressure between the two lands of the pis-
ton. The pressure acts against the larger lower land
to push the piston downward, allowing the piston rod
to extend though its guide against the apply lever.
Release of the servo at the 2-3 upshift is accom-
plished by a combination of spring and line pressure,
acting on the bottom of the larger land of the piston.
The small piston is used to cushion the application of
the band by bleeding oil through a small orifice in
the larger piston. The release timing of the kickdown
servo is very important to obtain a smooth but firm
shift. The release has to be very quick, just as the
front clutch application is taking place. Otherwise,
engine runaway or a shift hesitation will occur. To
Fig. 193 Front Planetary Gear Snap Ring and No. 4
Thrust Washer
1 - SNAP RING
2 - #4 THRUST WASHER
3 - SNAP RING
4 - FRONT PLANETARY GEAR ASSEMBLY
Fig. 194 Remove Pump Oil Seal
1 - PUMP OIL SEAL
2 - OIL SEAL REMOVER TOOL C-3981-B
3 - OIL PUMP
Fig. 195 Install Pump Oil
1 - OIL PUMP
2 - OIL SEAL INSTALLER TOOL C-4193
3 - SPECIAL TOOL HANDLE C-4171
RSAUTOMATIC - 31TH21 - 109
PLANETARY GEARTRAIN (Continued)

Page 3074 of 4284

CHRYSLER VOYAGER 2001 Service Manual accomplish this, the band retains its holding capacity
until the front clutch is applied, giving a small
amount of overlap between them.
DISASSEMBLY
(1) Remove kickdown servo snap ring (Fig. 197).(2)

Page 3075 of 4284

CHRYSLER VOYAGER 2001 Service Manual CLEANING
Clean the servo piston components (Fig. 201) with
solvent and dry them with compressed air. Wipe the
band clean with lint free shop towels.
Replace the front band if distorted, lining is
burn

Page 3076 of 4284

CHRYSLER VOYAGER 2001 Service Manual ASSEMBLY
(1) Lubricate new O-ring and seal rings with
petroleum jelly and install them on piston, guide and
rod.
(2) Install rod in piston. Install spring and washer
on rod. Compress spring and instal

Page 3077 of 4284

CHRYSLER VOYAGER 2001 Service Manual (3) Remove retainer, spring and servo (Fig. 206).
CLEANING
Remove and discard the servo piston seal ring (Fig.
207). Then clean the servo components with solvent
and dry with compressed air. Replace e

Page 3078 of 4284

CHRYSLER VOYAGER 2001 Service Manual OPERATION
The Brake/Transmission Shift Interlock (BTSI)
Solenoid prevents the transmission shift lever from
being moved out of PARK (P) unless the brake pedal
is applied. The BTSI solenoid is hardwire

Page 3079 of 4284

CHRYSLER VOYAGER 2001 Service Manual A conventional mechanical interlock system is also
used. This system manually prohibits shifter move-
ment when the ignition switch is in the LOCK or
ACC positions. Solenoid operation is not required

A conventional mechanical interlock system is also
used. This system manually prohibits shifter move-
ment when the ignition switch is in the LOCK or
ACC positions. Solenoid operation is not required in
these key positions. When the ignition key is in the
OFF position, the gearshift lever is unrestricted, and
able to move into any gear position (during towing,
dead battery, etc.).
For intended BTSI system operation, refer to the
following chart:
ACTION EXPECTED RESPONSE
1. Turn key to the9OFF9
position.1. Shifter CAN be shifted
out of park.
2. Turn key to the
9ON/RUN9position.2. Shifter CANNOT be
shifted out of park.
3. Turn key to the
9ON/RUN9position and
depress the brake pedal.3. Shifter CAN be shifted
out of park.
4. Leave shifter in any
gear and try to return key
to the9LOCK9or9ACC9
position.4. Key cannot be
returned to the9LOCK9or
9ACC9position.
5. Return shifter to
9PARK9and try to remove
the key.5. Key can be removed
(after returning to9LOCK9
position).
6. With the key removed,
try to shift out of9PARK9.6. Shifter cannot be
shifted out of9PARK9.
NOTE: Any failure to meet these expected
responses requires system adjustment or repair.
DIAGNOSIS AND TESTING - BRAKE/
TRANSMISSION SHIFT INTERLOCK SOLENOID
For intended BTSI system operation, refer to the
following chart:
ACTION EXPECTED RESPONSE
1. Turn key to the9OFF9
position.1. Shifter CAN be shifted
out of park.
2. Turn key to the
9ON/RUN9position.2. Shifter CANNOT be
shifted out of park.
3. Turn key to the
9ON/RUN9position and
depress the brake pedal.3. Shifter CAN be shifted
out of park.
4. Leave shifter in any
gear and try to return key
to the9LOCK9or9ACC9
position.4. Key cannot be
returned to the9LOCK9or
9ACC9position.
5. Return shifter to
9PARK9and try to remove
the key.5. Key can be removed
(after returning to9LOCK9
position).
6. With the key removed,
try to shift out of9PARK9.6. Shifter cannot be
shifted out of9PARK9.
NOTE: Any failure to meet these expected
responses requires system repair. Refer to the
appropriate Diagnostic Information.
REMOVAL
(1) Disconnect battery negative cable.
(2) Remove instrument panel lower shroud (Fig.
214).
Fig. 213 Pawl Disengaged From Shift Lever
1 - GEAR SHIFT LEVER
2 - GEAR SHIFT LEVER PAWL
Fig. 214 Instrument Panel Lower Silencer
1 - INSTRUMENT PANEL LOWER SILENCER
RSAUTOMATIC - 31TH21 - 115
SHIFT INTERLOCK SOLENOID (Continued)

Page 3080 of 4284

CHRYSLER VOYAGER 2001 Service Manual (3) Remove knee bolster (Fig. 215).
(4) Remove steering column lower shroud.
(5) Disconnect brake/transmission shift interlock
(BTSI) solenoid connector (Fig. 216).
(6) Remove two (2) solenoid-to-colu

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