For 1990-2009 cars only
Removal Procedure
- Raise the vehicle. Refer to Lifting and Jacking the Vehicle in General Information.
- Remove the transmission oil pan and the oil filter. Refer to Automatic Transmission Fluid and Filter Replacement .
- Remove the valve bore plug retainer ring (1).
- Remove the following parts:
Caution: Valve springs can be tightly compressed. Use care when removing retainers and plugs. Personal injury could result.
| • | The valve bore plug |
| • | The TCC valve |
| • | The TCC valve spring |
Installation Procedure
- Install the following parts:
- Install the valve bore plug retainer ring (1).
- Install the transmission oil pan and oil filter. Refer to Automatic Transmission Fluid and Filter Replacement .
- Lower the vehicle.
- Fill the transmission to the proper level with DEXRON® VI transmission fluid. Refer to Transmission Fluid Check .
- Reset the TAP values. Refer to Transmission Adaptive Functions .
| • | The TCC valve spring |
| • | The TCC valve |
| • | The valve bore plug |
Important: It is recommended that transmission adaptive pressure (TAP) information be reset.
Resetting the TAP values using a scan tool will erase all learned values in all cells. As a result, The ECM, PCM or TCM will need to relearn TAP values. Transmission performance may be affected as new TAP values are learned.