Removal Procedure

Remove the battery tray. Refer to Battery Tray Replacement .

Fig 1: Identifying Oil Cooler Inlet & Outlet Hoses

Courtesy of GENERAL MOTORS CORP.

Remove the oil cooler inlet and outlet hoses from the retainer on the control valve body cover.
Raise and support the vehicle. Refer to Lifting and Jacking the Vehicle .
Remove the left engine splash shield. Refer to Engine Splash Shield Replacement .
Remove the front transmission mount. Refer to Transmission Front Mount Replacement .
Drain the transmission. Refer to Transmission Fluid Replacement .

Fig 2: Identifying Control Valve Body Transmission Control Module (TCM) Electrical Connector

Courtesy of GENERAL MOTORS CORP.

Disconnect the control valve body transmission control module (TCM) electrical connector (1).

Fig 3: Identifying Control Valve Body Cover Studs & Bolts

Courtesy of GENERAL MOTORS CORP.

Remove the 2 control valve body cover studs M6 x 30.
Remove the 12 control valve body cover bolts M6 x 30.
Support the transmission with a transmission jack.
Using the transmission jack raise the transmission to gain clearance for removal of the control valve body cover.
Remove the control valve body cover.
Remove the control valve body cover gasket.

NOTE: Support the control solenoid valve assembly around the connector when removing the seal. Excessive pulling force can damage the internal electrical connections.

Remove the control valve body cover wiring connector hole seal.
Remove all traces of the old gasket material. Clean the transmission case and control valve body cover gasket surfaces.