Control Valve Body: Removal

Remove transaxle case side cover. See TRANSAXLE CASE SIDE COVER . Remove oil pump bolts, and oil pump assembly. Remove oil pump shaft. See Fig 1. Disconnect wire harness connectors from the following components:
- Pressure control solenoid.
- 1-2 and 2-3 shift solenoids.
- Transaxle Fluid Pressure (TFP) switch assembly.
- TCC solenoid.
For shift solenoid identification, refer to illustration. See Fig 2.
Remove TFP switch assembly bolts, and remove switch assembly from control valve body. See Fig 3. The 7 TFP switch O-rings are reusable, if not damaged, and should remain with pressure switch assembly. Remove remaining control valve body bolts, and remove control valve body assembly. See Fig 4.

NOTE: Check balls may fall out of channel plate assembly. Retain check balls with petroleum jelly.

Remove and discard valve body-to-spacer plate gasket. Remove spacer plate support bolts, and remove spacer plate support. Remove spacer plate with spacer plate filter attached. See Fig 5. Remove and discard spacer plate-to-channel plate gasket.

Fig 1: Removing & Installing Oil Pump

Courtesy of GENERAL MOTORS CORP.

Fig 2: Identifying Shift Solenoids

Courtesy of GENERAL MOTORS CORP.

Fig 3: Removing & Installing Transaxle Fluid Pressure Switch

Courtesy of GENERAL MOTORS CORP.

Fig 4: Removing & Installing Valve Body

Courtesy of GENERAL MOTORS CORP.

Fig 5: Removing & Installing Spacer Plate Support

Courtesy of GENERAL MOTORS CORP.