Jeep Cherokee (XJ): Speedometer adapter. Speed sensor rotor-speedometer drive gear. Park/neutral position switch

Speedometer adapter

Rear axle gear ratio and tire size determine speedometer pinion requirements.

REMOVAL

(1) Raise vehicle.

(2) Disconnect wires from vehicle speed sensor.

(3) Remove adapter clamp and screw (Fig. 51).

(4) Remove speed sensor and speedometer adapter as assembly.

(5) Remove speed sensor retaining screw and remove sensor from adapter.

(6) Remove speedometer pinion from adapter.

Fig. 50 Transmission Speed Sensor Removal/Installation

1 - RETAINER BOLT
2 - SPEED SENSOR

(7) Inspect sensor and adapter O-rings (Fig. 51).

Remove and discard O-rings if worn or damaged.

(8) Inspect terminal pins in speed sensor. Clean pins with Mopart electrical spray cleaner if dirty or oxidized. Replace sensor if faulty, or pins are loose, severely corroded, or damaged.

INSTALLATION

(1) Thoroughly clean adapter flange and adapter mounting surface in housing. Surfaces must be clean for proper adapter alignment and speedometer operation.

(2) Install new O-rings on speed sensor and speedometer adapter if necessary (Fig. 51).

(3) Lubricate sensor and adapter O-rings with transmission fluid.

(4) Install vehicle speed sensor in speedometer adapter. Tighten sensor attaching screw to 2-3 N·m (15-27 in. lbs.) torque.

(5) Install speedometer pinion in adapter.

(6) Count number of teeth on speedometer pinion.

Do this before installing assembly in housing. Then lubricate pinion teeth with transmission fluid.

(7) Note index numbers on adapter body (Fig. 52).

These numbers will correspond to number of teeth on pinion.

(8) Install speedometer assembly in housing.

(9) Rotate adapter until required range numbers are at 6 o'clock position. Be sure range index numbers correspond to number of teeth on pinion gear.

(10) Install speedometer adapter clamp and retaining screw. Tighten clamp screw to 10-12 N·m (90-110 in. lbs.) torque.

(11) Connect wires to vehicle speed sensor.

(12) Lower vehicle and top off transmission fluid level, if necessary.

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.

Park/neutral position switch

REMOVAL

(1) Raise vehicle.

(2) Disconnect switch wire harness connector.

(3) Pry washer lock tabs upward and remove switch attaching nut and tabbed washer (Fig. 55).

(4) Remove switch adjusting bolt (Fig. 55).

(5) Slide switch off manual valve shaft

Fig. 55 Park/Neutral Position Switch Removal/Installation

1 - ADJUSTING BOLT
2 - ATTACHING NUT
3 - NEUTRAL SWITCH
4 - TABBED WASHER

INSTALLATION

(1) Disconnect shift linkage rod from shift lever on left side of transmission.

(2) Rotate manual shift lever all the way rearward.

Then rotate lever forward two detent positions to Neutral.

(3) Install switch on manual valve shaft and install switch adjusting bolt finger tight. Do not tighten bolt at this time.

(4) Install tabbed washer on manual valve shaft and install switch attaching nut. Tighten nut to 6.9 N·m (61 in. lbs.) torque but do not bend washer lock tabs over nut at this time.

(5) Verify that transmission is in Neutral.

(6) Rotate switch to align neutral standard line with vertical groove on manual valve shaft (Fig. 56).

(7) Align switch standard line with groove or flat on manual valve shaft.

Fig. 56 Park/Neutral Position Switch Adjustment

1 - NEUTRAL STANDARD LINE
2 - ADJUSTING BOLT
3 - VERTICAL GROOVE ON MANUAL VALVE SHAFT

(8) Tighten switch adjusting bolt to 13 N·m (9 ft.

lbs.) torque.

(9) Bend at least two washer lock tabs over switch attaching nut to secure it.

(10) Connect shift linkage rod to shift lever on left side of case.

(11) Connect switch wires to harness and lower vehicle.

(12) Check switch operation. Engine should start in Park and Neutral only.