GM Service Manual Online
For 1990-2009 cars only

Removal Procedure


    Object Number: 1891235  Size: SH
  1. Remove the air cleaner outlet duct. Refer to Air Cleaner Outlet Duct Replacement.
  2. Remove the battery box cover, LAT only.

  3. Object Number: 1811485  Size: SH
  4. Disconnect the engine wiring harness electrical connectors (2, 3) from the intake and exhaust camshaft position actuator solenoid valves.
  5. Remove the ignition coils. Refer to Ignition Coil Replacement.
  6. Remove the engine harness clips (4) from the cover.
  7. Reposition the engine wiring harness out of the way.

  8. Object Number: 1647977  Size: SH
  9. Remove the fuel feed line retainers (1, 2) from the engine brackets.

  10. Object Number: 1578306  Size: SH
  11. Remove the camshaft cover bolts.
  12. Remove the camshaft cover.

Installation Procedure

    Caution: Refer to Fastener Caution in the Preface section.


    Object Number: 1578306  Size: SH
  1. Install the camshaft cover and bolts. Tighten the bolts to 10 N·m (89 lb in).

  2. Object Number: 1647977  Size: SH
  3. Install the feed line retainers (1, 2) to the engine brackets.

  4. Object Number: 1647538  Size: SH
  5. Install the ignition coils. Refer to Ignition Coil Replacement.
  6. Position the engine wiring harness and install the clips (4) to the cover.
  7. Connect the engine wiring harness electrical connectors (2, 3) to the intake and exhaust camshaft position actuator solenoid valves.

  8. Object Number: 1891235  Size: SH
  9. Install the battery box cover, LAT only.
  10. Install the air cleaner outlet duct. Refer to Air Cleaner Outlet Duct Replacement.