Jeep XJ. Manual — part 803
(21) Align and install front bearing retainer over
input shaft and onto housing mounting surface (Fig.
119). Although retainer is one-way fit on housing, be
sure bolt holes are aligned before seating retainer.
NOTE: Ensure no sealer gets into the oil feed hole
in the transmission case or bearing retainer.
(22) Install and tighten bearing retainer bolts to
7-10 N·m (5-7 ft. lbs.) (Fig. 120).
SHIFT TOWER AND LEVER
(1) Apply petroleum jelly to ball end of shift lever
and interior of shift socket.
(2) Shift the transmission into third gear.
(3) Align and install shift tower and lever assem-
bly (Fig. 121). Be sure shift ball is seated in socket
Fig. 116 SHAFT SNAP RING - TYPICAL
1 - INPUT SHAFT SNAP RING
Fig. 117 OIL SEAL IN FRONT BEARING RETAINER
1 - SPECIAL TOOL 6448
2 - FRONT BEARING RETAINER
Fig. 118 SEAL BEARING RETAINER AND HOUSING
1 - APPLY SEALER BEAD
2 - INPUT SHAFT BEARING RETAINER
Fig. 119 INPUT SHAFT BEARING RETAINER
1 - INPUT SHAFT
2 - OIL FEED
3 - BEARING RETAINER
Fig. 120 BEARING RETAINER BOLTS
1 - RETAINER
2 - RETAINER BOLTS
21s - 34
MANUAL NV 3550
XJ
MANUAL NV 3550 (Continued)
2001 JEEP CHEROKEE
and the offset in the tower is toward the passenger
side of the vehicle before installing tower bolts.
(4) Install shift tower bolts (Fig. 122). Tighten
bolts to 8.5 N·m (75.2 in. lbs.).
(5) Fill transmission to bottom edge of fill plug
hole with Mopar Transmission Lubricant.
(6) Install and tighten fill plug to 34 N·m (25 ft. lbs.).
(7) Check transmission vent. Be sure vent is open
and not restricted.
EXTENSION HOUSING
BUSHING
REMOVAL - YOKE BUSHING
(1) Raise and support vehicle.
(2) Mark reference lines on the propeller shaft and
remove shaft.
(3) Remove housing yoke seal.
(4) Insert Remover 6957 into rear housing and
tighten tool to bushing and remove bushing (Fig.
123).
INSTALLATION - YOKE BUSHING
(1) Align bushing oil hole with oil slot in rear
housing.
(2) Tap bushing into place with Installer 6951 and
Handle C-4171.
(3) Install new oil seal in housing using Installer
C-3972-A (Fig. 124).
(4) Install propeller shaft with reference marks
aligned.
(5) Remove support and lower vehicle.
(6) Check transmission fluid level.
Fig. 121 SHIFT TOWER
1 - SHIFT TOWER
2 - SHIFT SOCKET
3 - SEAL
Fig. 122 SHIFT TOWER BOLTS
1 - SHIFT TOWER AND LEVER ASSEMBLY
Fig. 123 Bushing Removal - Typical
1 - REMOVER
2 - EXTENSION HOUSING BUSHING
Fig. 124 Rear Housing Seal
1 - HANDLE
2 - INSTALLER
XJ
MANUAL NV 3550
21s - 35
MANUAL NV 3550 (Continued)
2001 JEEP CHEROKEE
EXTENSION HOUSING SEAL
2WD
REMOVAL - YOKE SEAL 2WD
(1) Raise raise and support vehicle.
(2) Mark propeller shaft and axle yoke for align-
ment reference.
(3) Disconnect and remove propeller shaft.
(4) Remove old seal with Remover C-3985-B (Fig.
125) from transmission housing.
INSTALLATION - YOKE SEAL 2WD
(1) Place seal in position on transmission housing.
(2) Drive new seal into transmission housing with
Installer C-3972-A and Handle C-4171 (Fig. 126).
(3) Carefully guide propeller shaft slip yoke into
housing and onto output shaft splines.
(4) Install propeller shaft with reference marks
aligned.
(5) Remove support and lower vehicle.
(6) Check transmission fluid level.
VEHICLE SPEED SENSOR
DESCRIPTION
The 3–wire Vehicle Speed Sensor (VSS) is located
on the speedometer pinion gear adapter. If equipped
with 4WD, this adapter is located on the extension
housing
of
the
transfer
case
(drivers
side).
If
equipped with 2WD, this adapter is located on the
left side of the transmission extension housing.
OPERATION
The VSS is a 3–circuit (3–wire), magnetic, hall-ef-
fect sensor.
The 3 circuits are:
• A 5–volt power supply from the Powertrain Con-
trol Module (PCM).
• A ground is provided for the sensor though a
low-noise sensor return circuit in the PCM.
• An input to the PCM is used to determine vehi-
cle speed and distance traveled.
The speed sensor generates 8 pulses per sensor
revolution. These signals, in conjunction with a
closed throttle signal from the throttle position sen-
sor, indicate a closed throttle deceleration to the
PCM. When the vehicle is stopped at idle, a closed
throttle signal is received by the PCM (but a speed
sensor signal is not received).
Under deceleration conditions, the PCM adjusts
the Idle Air Control (IAC) motor to maintain a
desired MAP value. Under idle conditions, the PCM
adjusts the IAC motor to maintain a desired engine
speed.
Fig. 125 TRANSMISSION YOKE SEAL
1 - REMOVER
2 - SEAL
Fig. 126 Transmission Housing Yoke Seal
1 - HANDLE
2 - INSTALLER
21s - 36
MANUAL NV 3550
XJ
2001 JEEP CHEROKEE
REMOVAL
The Vehicle Speed Sensor (VSS) is located on the
speedometer pinion gear adapter. If equipped with
4WD, this adapter is located on the transfer case
extension (left side) (Fig. 127). If equipped with 2WD,
this adapter is located on the extension housing of
the transmission (left side).
(1) Raise and support vehicle.
(2) Disconnect electrical connector from sensor by
pushing slide tab (Fig. 127). After slide tab has been
positioned, push in on secondary release lock (Fig.
127) on side of connector and pull connector from
sensor.
(3) Remove sensor mounting bolt (Fig. 128).
(4) Remove sensor (pull straight out) from speed-
ometer pinion gear adapter (Fig. 128). Do not remove
gear adapter from transmission.
INSTALLATION
(1) Clean
inside
of
speedometer
pinion
gear
adapter before installing speed sensor.
(2) Install sensor into speedometer gear adapter
and install mounting bolt. Before tightening bolt, ver-
ify speed sensor is fully seated (mounted flush) to
speedometer pinion gear adapter.
(3) Tighten sensor mounting bolt to 2.2 N·m (20 in.
lbs.) torque.
(4) Connect electrical connector to sensor.
Fig. 127 VSS Location
1 - SENSOR ELECTRICAL CONNECTOR
2 - SLIDE TAB
3 - 4WD TRANSFER CASE EXTENSION
4 - VEHICLE SPEED SENSOR
5 - RELEASE LOCK
Fig. 128 VSS Removal/Installation
1 - ELECTRICAL CONNECTOR
2 - SENSOR MOUNTING BOLT
3 - O-RING
4 - SPEEDOMETER PINION GEAR
5 - SPEEDOMETER PINION GEAR ADAPTER
6 - O-RING
7 - VEHICLE SPEED SENSOR
XJ
MANUAL NV 3550
21s - 37
VEHICLE SPEED SENSOR (Continued)
2001 JEEP CHEROKEE
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