Main Control Valve Body

Main Control Valve Body














Removal
1. With the vehicle in NEUTRAL, position it on a hoist.
2. If equipped, remove the transmission fluid drain plug and drain the transmission fluid.





3. NOTE: Clean the area around the transmission solenoid body harness connector to prevent contamination of the transmission control solenoid body harness connector.

Disconnect the transmission control solenoid body harness connector.





4. NOTE: The transmission fluid pan gasket is reusable. Clean and inspect for damage. If not damaged, the transmission fluid pan gasket should be reused.

Remove the 16 transmission fluid pan screws, transmission fluid pan and transmission fluid pan gasket.





5. Remove the transmission fluid pan filter.





6. Remove the reverse servo assembly screws and the reverse servo assembly.





7. Remove the transmission control solenoid body screws and the transmission control solenoid body.





8. Remove the manual control valve detent spring.





9. Remove the main control valve body screws and the main control valve body.





Installation
1. Install the special tools into the transmission case.





2. Using the special tools, install the main control valve body and loosely install the main control valve body screws.
1 Install the short main control valve body screw.
2 Install the main control valve body screw with the larger head.
3 Install the remaining main control valve body screws.





3. Remove the special tools and loosely install the main control valve body screw.





4. Tighten the main control valve body screws in the sequence shown.
^ Tighten to 10 Nm (89 lb-inch).





5. Install the manual control valve detent spring.
^ Tighten to 10 Nm (89 lb-inch).





6. Install the reverse servo assembly. Tighten the reverse servo assembly screws in 2 stages, in the sequence shown.
^ Stage 1: Tighten to 5 Nm (44 lb-inch).
^ Stage 2: Tighten to 11 Nm (8 lb-ft).





7. Install new O-ring seals on the transmission control solenoid body connector. Lubricate the O-ring seals with clean transmission fluid.





8. CAUTION: Inspect the transmission case bore to make sure it is free of foreign material and not damaged. If it is damaged, transmission leak may occur.

Install the transmission control solenoid body. Tighten the transmission control solenoid body screws in the sequence shown.
^ Tighten to 8 Nm (71 lb-inch).





9. CAUTION: Damage may occur to transmission fluid filter seals if they are not lubricated with clean transmission fluid.

NOTE: Make sure that the transmission fluid filter seals are correctly seated on the transmission fluid filter.

Lubricate the transmission fluid filter seals and install the transmission fluid pan filter.
^ Tighten to 10 Nm (89 lb-inch).





10. NOTE: The transmission fluid pan gasket is reusable, clean and inspect for damage. If not damaged, the transmission fluid pan gasket should be reused.

Install the transmission fluid pan gasket on the transmission fluid pan.





11. Install the transmission fluid pan and transmission fluid pan gasket and loosely install the transmission fluid pan screws.





12. Tighten the transmission fluid pan screws in a crisscross sequence.
^ Tighten to 11 Nm (8 lb-ft).





13. CAUTION: Damage will occur to the transmission control solenoid body assembly if the screw is tightened above specification.

NOTE: Always install new O-ring seals on the transmission control solenoid body harness connector.

NOTE: Clean the area around transmission control solenoid body harness connector to prevent contamination of the transmission control solenoid body harness connector.

NOTE: Use petroleum jelly to lubricate the O-ring seals to aid in the installation process.

Install and lubricate new O-ring seals on the transmission control solenoid body harness connector and connect the transmission control solenoid body harness connector.
^ Tighten to 5 Nm (44 lb-inch).





14. Fill the transmission.