GM Service Manual Online
For 1990-2009 cars only

Removal Procedure


    Object Number: 856569  Size: SH
  1. Remove the 2 fasteners.
  2. Remove the 2 plastic retainers.
  3. Remove the engine cover (1) from the engine.

  4. Object Number: 828858  Size: SH
  5. Disconnect the electrical connector (1) from the camshaft position (CMP) actuator solenoid valve (2).

  6. Object Number: 828860  Size: SH
  7. Remove the fastener retaining the CMP actuator solenoid valve (1) to the cylinder head.
  8. Remove the CMP actuator solenoid valve (1) and the O-ring (2) from the cylinder head.

Installation Procedure


    Object Number: 828860  Size: SH
  1. Install a new O-ring (2) and the CMP actuator solenoid valve (1) into the cylinder head.
  2. Notice: Refer to Fastener Notice in the Preface section.

  3. Secure the CMP actuator solenoid valve with the fastener.
  4. Tighten
    Tighten the fastener to 9 N·m (80 lb in).


    Object Number: 828858  Size: SH
  5. Connect the electrical connector (1) to the solenoid valve (2).

  6. Object Number: 856569  Size: SH
  7. Install the engine cover (1).
  8. Secure the engine cover (1) with the 2 fasteners.
  9. Tighten
    Tighten the fasteners to 8.8 N·m (77 lb in).

  10. Install the 2 plastic retainers.