GM Service Manual Online
For 1990-2009 cars only

Removal Procedure

  1. Remove the upper intake manifold with the lower intake manifold. Refer to Lower Intake Manifold Replacement .

  2. Object Number: 1394057  Size: SH
  3. Disconnect the ignition coil electrical connectors.

  4. Object Number: 1394076  Size: SH
  5. Remove the wiring harness from the side of the camshaft cover by sliding the conduit down and outboard.
  6. Remove the wiring conduit retainers from the camshaft cover by rotating the wiring harness conduit retainers counterclockwise.

  7. Object Number: 1394020  Size: SH

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

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

  10. Object Number: 868186  Size: SH
  11. Remove the ignition coils.
  12. Loosen the left engine strut bracket.
  13. Loosen the left engine strut bracket-to-cylinder head bolts.

  14. Object Number: 902871  Size: SH
  15. Remove the camshaft cover bolts and camshaft cover.
  16. Remove and discard the camshaft cover seal and grommets. DO NOT reuse.

Installation Procedure

  1. Install a NEW camshaft cover seal and NEW grommets.

  2. Object Number: 902871  Size: SH
  3. Install the camshaft cover. Refer to Camshaft Cover Installation - Left Side .
  4. Notice: Refer to Fastener Notice in the Preface section.

  5. Tighten the left engine strut bracket-to-cylinder head bolts.
  6. Tighten
    Tighten the left engine strut bracket-to-cylinder head bolts to 50 N·m(37 lb ft).


    Object Number: 868186  Size: SH
  7. Install the ignition coils.

  8. Object Number: 1394020  Size: SH
  9. Install the wiring harness to the front of the camshaft cover.
  10. Install the wiring harness conduit retainers to the wiring harness conduit.

  11. Object Number: 1394076  Size: SH
  12. Install the wiring harness to the side of the camshaft cover.

  13. Object Number: 1394057  Size: SH
  14. Connect the ignition coil electrical connectors.
  15. Install the upper intake manifold with the lower intake manifold. Refer to Lower Intake Manifold Replacement .