Valve Body: Service and Repair

Main Control-Valve Body





Special Tool(s)

Removal

1. Drain the transmission fluid and remove the transmission fluid pan and filter.





2. CAUTION: Do not pull on the molded lead frame. This may cause damage to the connector ends. Carefully pry up on the locking tabs to disconnect the solenoids. Disconnect the molded lead frame from the solenoids.

Disconnect the molded lead frame from the solenoids.
1. Disconnect the shift solenoid SSA and SSB.
2. Disconnect the torque converter clutch (TCC).
3. Disconnect the electronic pressure control (EPC) solenoid.
4. Disconnect the bulkhead inter-connector.





3. Remove the manual control valve detent lever spring.
1. Remove the bolt.
2. Remove the manual control valve detent lever spring.





4. Remove the 24 valve body to case bolts.





5. Remove the main control valve body and discard the pump outlet screen.

Installation





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

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





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

Loosely install the bolts.





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

Loosely install the bolts.





4. Install the manual control valve detent lever spring.
1. Position the manual control valve detent lever spring.
2. Install the bolt.





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





6. Inspect the lead frame for damage.
^ Using the special tool, check all the lead frame solenoid connections.
^ If the special tool passes through any connector pin, install a new lead frame.





7. Connect the molded lead frame to the solenoids.
^ Connect the bulkhead inter-connector.
^ Connect the electronic pressure control (EPC) solenoid.
^ Connect the torque converter clutch (TCC).
^ Connect the shift solenoid SSA and SSB.
8. Install the transmission fluid pan and filter.