Selector Shaft: Service and Repair
REMOVALNOTE: Use Digital Transmission Range (DTR) Sensor Alignment Tool to adjust TR and DTR sensors.
1. Disconnect battery ground cable.
2. Raise and support the vehicle.
WARNING: THE ELECTRICAL POWER TO THE AIR SUSPENSION SYSTEM MUST BE SHUT OFF PRIOR TO HOISTING, JACKING OR TOWING AN AIR SUSPENSION VEHICLE. THIS CAN BE ACCOMPLISHED BY TURNING OFF THE AIR SUSPENSION SWITCH LOCATED IN THE RH KICK PANEL AREA. FAILURE TO DO SO MAY RESULT IN UNEXPECTED INFLATION OR DEFLATION OF THE AIR SPRINGS WHICH MAY RESULT IN SHIFTING OF THE VEHICLE DURING THESE OPERATIONS.
3. Remove the front driveshaft.
(1) Remove the eight front driveshaft bolts (four each end).
(2) Remove the front driveshaft.
NOTE: Mark the driveshaft flange and rear axle companion flange for correct alignment during installation.
4. Drain the transmission fluid and remove the fluid pan and filter.
5. Disconnect (TR) or (DTR) sensor electrical connector.
6. Disconnect the transmission shift linkage.
7. Remove the manual control lever.
(1) Remove the outer manual control lever shaft nut.
(2) Remove the manual control lever.
CAUTION: Discard outer manual control lever shaft nut. Do not reuse.
8. Remove the transmission range TR or DTR sensor.
(1) Remove the two bolts.
(2) Remove the TR sensor.
9. Remove the manual control valve detent lever spring.
(1) Remove the bolt.
(2) Remove the manual control valve detent lever spring.
10. Remove the manual lever shaft retaining pin.
NOTE: Use a shop cloth to protect the transmission case surface.
11. Remove the inner manual control lever shaft nut and slide the manual control lever shaft out of the case.
12. Remove the (A) manual valve detent lever and (B) parking lever actuating rod.
13. Remove the manual control lever shaft seal.
CAUTION: Use care not to damage the manual control lever shaft bore.
INSTALLATION
1. Use (A) Shift Lever Seal Replacer to install the (B) manual control lever seal.
2. Install the (A) manual valve detent lever and (B) parking lever actuating rod.
3. Install the manual control lever shaft.
(1) Install the manual control lever shaft.
(2) Install the inner manual control lever shaft nut.
(3) Install the manual lever shaft retaining pin.
4. Install the manual valve detent lever spring.
(1) Position the manual valve detent lever spring.
(2) Install the manual valve detent lever spring bolt.
5. Install the TR or DTR sensor.
(1) Position the TR or DTR sensor.
(2) Loosely install the two bolts.
NOTE: Use the Digital Transmission Range (DTR) Sensor Alignment Tool for both DTR and TR sensors.
6. Use Digital Transmission Range (DTR) Sensor Alignment Tool to align the TR and DTR sensor slots.
NOTE: Manual shift lever must be in the neutral position.
7. Tighten the DTR or TR sensor bolts and remove the Digital Transmission Range (DTR) Sensor Alignment Tool.
8. Install the manual control lever.
(1) Position the manual control lever.
(2) Install a new manual lever shaft outer nut.
9. With manual lever in overdrive, connect the shift control cable.
10. Install TR or DTR sensor electrical connector.
11. Install the filter and transmission fluid pan.
12. Install the front driveshaft.
(1) Position the front driveshaft.
(2) Install the eight front driveshaft bolts (four each end).
13. Lower the vehicle.
NOTE: If equipped with air suspension, reactivate the system by turning on the air suspension switch.
14. Connect the battery ground cable.
NOTE: When the battery is disconnected and reconnected, some abnormal drive symptoms may occur while the vehicle relearns its adaptive strategy. The vehicle may need to be driven 16 km (10 mi) or more to relearn the strategy.
15. Fill the transmission with fluid and inspect for proper operation.