GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Chevrolet 🢒 2008 🢒 Malibu 🢒 Diagnostic Navigation 🢒 Vehicle Diagnostic Information 🢒 Control Valve Body Cover Replacement

Removal Procedure

  1. Disconnect the negative battery cable. Refer to Battery Negative Cable Disconnection and Connection.

    2. Object Number: 1998666 Size: SH
  2. Remove the oil cooler inlet (1) and outlet (2) hoses from the retainer (2) on the control valve body cover.
  3. Raise and support the vehicle. Refer to Lifting and Jacking the Vehicle.
  4. Remove the left engine splash shield. Refer to Engine Splash Shield Replacement - Left Side.
  5. Remove the left front fender liner. Refer to Front Wheelhouse Panel Splash Shield Replacement.
  6. Remove the front transmission mount. Refer to Transmission Front Mount Replacement.
  7. Drain the transmission. Refer to Transmission Fluid Replacement.

    8. Object Number: 1999448 Size: SH
  8. Disconnect the control valve body transmission control module (TCM) electrical connector (1), then the wiring harness from the cover.

    9. Object Number: 1999445 Size: SH
  9. Remove the control valve body cover bolts (1).
  10. Support the transmission with a transmission jack.
  11. Using the transmission jack raise the transmission to gain clearance for removal of the control valve body cover.
  12. Remove the control valve body cover.
  13. Remove the control valve body cover gasket.

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

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

Installation Procedure


    Object Number: 1999445 Size: SH
  1. Install the control valve body cover wiring connector hole seal (4).
  2. Install the control valve body cover gasket (3) to the control valve body cover.
  3. Install the control valve body cover (2).
  4. Lower the transmission and remove the transmission jack.
  5. Hand start the control valve body cover bolts (1).

    6. Notice: Refer to Fastener Notice in the Preface section.


    Object Number: 1999447 Size: SH

    Important: Install all control valve body cover bolts and studs by hand then torque all bolts and studs in sequence.

  6. Install the control valve body cover bolts.

    7. Tighten
    Tighten the bolts in sequence to 12 N·m (106 lb in).


    Object Number: 1999448 Size: SH
  7. Connect the control valve body TCM electrical connector (1), then clip the wiring harness to the cover.
  8. Install the front transmission mount. Refer to Transmission Front Mount Replacement.
  9. Install the left front fender liner. Refer to Front Wheelhouse Panel Splash Shield Replacement.
  10. Install the left engine splash shield. Refer to Engine Splash Shield Replacement - Left Side.
  11. Lower the vehicle.

    12. Object Number: 1998666 Size: SH
  12. Install the oil cooler inlet (1) and outlet (5) hoses to the retainer (2) on the control valve body cover.
  13. Connect the negative battery cable. Refer to Battery Negative Cable Disconnection and Connection.
  14. Fill the transmission. Refer to Transmission Fluid Replacement.
  15. Check for leaks.