Removal and Installation

REMOVAL
1. Disconnect the battery.
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. Drain the transmission fluid. Remove the transmission fluid pan, filter and seal.





4. Disconnect the solenoid and sensor electrical connectors.
(1) Transmission Fluid Temperature (TFT) sensor.
(2) Shift solenoids SS1 and SS2.
(3) Torque Converter Clutch (TCC) solenoid.
(4) Electronic Pressure Control (EPC) solenoid.

CAUTION: Do not pull on the wires. This can damage the wires or the connector and can result in transmission solenoid or sensor failure. Carefully pry up on the locking tab and disconnect the connector.





5. Remove the manual valve detent spring.
(1) Remove the bolt.
(2) Remove the manual valve detent spring.





6. Remove the valve body-to-case bolts.
7. Remove the main control valve body.





INSTALLATION
1. Position the main control valve body gasket and main control valve body using the two alignment bolts as a guide.

NOTE: Make sure the manual valve detent lever assembly drive pin engages the manual valve in the proper location prior to installing the bolts.





2. Loosely install the 11 long main control valve body bolts.

NOTE: The main control valve body bolts will be tightened in later steps.





3. Loosely install the 12 short main control valve body bolts.

NOTE: The main control valve body bolts will be tightened in later steps.





4. Install the manual valve detent spring.
(1) Position the manual valve detent spring.
(2) Install the bolt.





5. Tighten the main control valve body bolts in the sequence shown.





6. Connect the solenoid and sensor electrical connectors.
(1) Transmission fluid temperature (TFT) sensor.
(2) Shift solenoids.
(3) Torque converter control (TCC) solenoid.
(4) Electronic pressure control (EPC) solenoid.





7. Replace the fluid filter and seal as required.

CAUTION: If replacing the filter, and the seal remains in the main control bore, carefully use a small screwdriver to remove the seal. Use care not to damage the main control bore.

NOTE: If the transmission is being repaired for a contamination-related failure, use a new filter and seal. The filter may be reused if no excessive contamination is present.





8. Position the pan magnet into the transmission fluid pan.





9. Install the transmission fluid pan.
(1) Position the transmission pan gasket.
(2) Position the transmission fluid pan.

NOTE: The transmission fluid pan gasket is reusable. Clean and inspect for damage; if not damaged, reuse the gasket.





10. Install the transmission fluid pan bolts.
11. Remove the supports and lower the vehicle.

NOTE: If equipped with air suspension, reactivate the system by turning on the air suspension switch.

12. Reconnect the battery ground cable.

NOTE:When the battery has been disconnected and reconnected, some abnormal drive symptoms may occur while the powertrain control module relearns its adaptive strategy. The vehicle may need to be driven 16 km (10 miles) or more to relearn the strategy.

13. Fill the transmission with fluid and check for proper operation.