(2) Remove sensor retainer bolt and remove sensor
(Fig. 50).
(3) Remove and discard speed sensor O–ring.
INSTALLATION
(1) Install new O–ring on speed sensor and install
sensor in transmission case.
(2) Install sensor bracket and retainer bolt.
Tighten bolt to 7.4 N·m (65 in. lbs.) torque.
(3) Connect sensor wire harness connector.
SPEEDOMETER ADAPTER
Rear axle gear ratio and tire size determine speed-
ometer 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.
(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 oper-
ation.
(2) Install new O-rings on speed sensor and speed-
ometer 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 num-
bers correspond to number of teeth on pinion gear.
Fig. 49 Adapter Housing Seals
1 – 4WD ADAPTER HOUSING
2 – SEAL
3 – BUSHING
4 – OIL TUBE
5 – 2WD EXTENSION HOUSING
6 – SEAL
7 – SPEED SENSOR
8 – SPEED SENSOR
Fig. 50 Transmission Speed Sensor Removal/
Installation
1 – RETAINER BOLT
2 – SPEED SENSOR
XJ AW–4 AUTOMATIC TRANSMISSION 21 - 253
REMOVAL AND INSTALLATION (Continued)
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