Jeep Cherokee

 Service Manual

Transmission and transfer case » AW-4 automatic transmission » Removal and installation
Speed sensor rotor-speedometer drive gear

REMOVAL

(1) Raise vehicle.

(2) Remove components necessary to gain access to rotor and drive gear such as propeller shaft, transfer case, crossmember, and shift linkage.

(3) Disengage wire connector from the output speed sensor.

(4) Remove the bolt holding the output speed sensor to the adapter housing.

(5) Remove the output speed sensor from the adapter housing.

(6) Remove the bolts holding the adapter housing to the transmission case.

(7) Tap the adapter housing at the joint line gently with a rubber mallet to separate the adapter housing from the transmission case.

(8) Remove the adapter housing from the transmission case.

Fig. 52 Index Numbers On Speedometer Pinion Adapter

1 - SENSOR O-RING
2 - SPEEDOMETER ADAPTER
3 - ADAPTER O-RING
4 - SPEEDOMETER PINION
5 - ADAPTER CLAMP
6 - VEHICLE SPEED SENSOR

Fig. 51 Speedometer Pinion Adapter Components

1 - SPEEDOMETER ADAPTER
2 - INDEX NUMBER LOCATION

(9) Remove speedometer drive gear snap ring (Fig.

53).

(10) Remove the speedometer drive gear and spacer, if equipped.

(11) Remove rotor from the output shaft. It may be necessary to use a wood dowel or hammer handle (Fig. 54) to gently pry the rotor from the output shaft. Be sure to retrieve the rotor locating key from the output shaft or rotor.

Fig. 53 Removing/Installation Speedometer Drive Gear

1 - ROTOR
2 - SPEEDOMETER DRIVE GEAR
3 - SNAP RING

Fig. 54 Removing Speed Sensor Rotor

1 - WOOD DOWEL OR HAMMER HANDLE
2 - ROTOR
3 - OUTPUT SHAFT

INSTALLATION

(1) Clean sealing surfaces of transmission case and extension/adaptor housing.

(2) Install rotor, spacer (if equipped) and drive gear on output shaft. Then install drive gear snap ring (Fig. 53).

(3) Apply 1/8 3/16 inch wide bead of Threebondt Liquid Gasket TB1281, P/N 83504038, to transmission case sealing surface and install extension/ adapter housing on case.

(4) Tighten adaptor housing bolts to 34 N·m (25 ft.

lbs.) torque.

(5) Install components removed to gain access to rotor and drive gear.

Transmission and torque converter

Torque converter

Adapter housing seal

Speed sensor

Speedometer adapter

Speed sensor rotor-speedometer drive gear

Park/neutral position switch

Gearshift cable

Brake transmission shift interlock

Transmission valve body solenoids

Transmission valve body

Transmission control module

Solenoid harness adapter seal

Manual valve shaft seal

Accumulator pistons and springs

Second coast brake servo

Park rod and pawl

Transmission throttle cable

Oil pump seal