GM Service Manual Online
For 1990-2009 cars only

Removal Procedure

  1. Remove the engine cover. Refer to Fuel Injector Sight Shield Replacement .
  2. Remove the upper intake manifold with the lower intake manifold. Refer to Lower Intake Manifold Replacement .

  3. Object Number: 945711  Size: SH
  4. Disconnect the ignition coil electrical connectors.

  5. Object Number: 945536  Size: SH
  6. Remove the wiring harness from the side of the camshaft cover by sliding the conduit down and outboard.
  7. Remove the wiring conduit retainers from the camshaft cover by rotating the wiring harness conduit retainers counterclockwise.

  8. Object Number: 945682  Size: SH

    Important: It is not necessary to disconnect the engine front cover electrical connectors.

  9. Remove the wiring harness from the front of the camshaft cover.
  10. Reposition and secure the wiring harnesses away from the camshaft cover in order to provide clearance.

  11. Object Number: 860797  Size: SH
  12. Remove the ignition coils.

  13. Object Number: 902873  Size: SH
  14. Remove the camshaft cover.
  15. Remove and discard the camshaft cover seal and grommets.

Installation Procedure


    Object Number: 902873  Size: SH
  1. Install a NEW camshaft cover seal and NEW grommets.
  2. Install the camshaft cover. Refer to Camshaft Cover Installation - Right Side .

  3. Object Number: 860797  Size: SH
  4. Install the ignition coils.

  5. Object Number: 945682  Size: SH
  6. Install the wiring harness to the front of the camshaft cover.
  7. Install the wiring harness conduit retainers to the wiring harness conduit.

  8. Object Number: 945536  Size: SH
  9. Install the wiring harness to the side of the camshaft cover.

  10. Object Number: 945711  Size: SH
  11. Connect the ignition coil electrical connectors.
  12. Install the upper intake manifold with the lower intake manifold. Refer to Lower Intake Manifold Replacement .
  13. Install the engine cover. Refer to Fuel Injector Sight Shield Replacement .