GM Service Manual Online
For 1990-2009 cars only

Removal Procedure


    Object Number: 63936  Size: SH
  1. Disconnect the vacuum hose from the brake booster. Reposition hose away from the cover.
  2. Remove the fuel injector sight shield. Refer to Fuel Injector Sight Shield Replacement.

  3. Object Number: 928145  Size: SH
  4. Disconnect the positive crankcase ventilation (PCV) fresh air tube from the left camshaft cover.
  5. Remove the ignition module. Refer to Ignition Coil Module Replacement - Left Side.

  6. Object Number: 928237  Size: SH
  7. Remove the bolt connecting the ground strap to the left camshaft cover.
  8. Remove the bolt securing the oil level indicator tube to the left cylinder head and reposition the tube away from the camshaft cover.

  9. Object Number: 928241  Size: SH
  10. Remove the camshaft cover bolts.
  11. Lift the camshaft drive end of the camshaft cover up.
  12. Remove the camshaft cover.
  13. Discard the camshaft cover gasket and spark plug port seals if there is any evidence of damage or if the seal comes out of the groove in the cover during removal.
  14. Clean and inspect the camshaft cover. Refer to Camshaft Cover Cleaning and Inspection.

Installation Procedure

    Note: Be careful to prevent the exposed section of the camshaft cover gasket from being damaged by the edge of the cylinder head casting.

  1. Work the camshaft cover into position by pivoting the cover down and aligning the bolt holes.
  2. Caution: Refer to Fastener Caution in the Preface section.


    Object Number: 928237  Size: SH
  3. Install the camshaft cover bolts installing the ground strap to the camshaft cover and tighten to 10 N·m (89 lb in).

  4. Object Number: 63936  Size: SH
  5. Connect the vacuum hose to the brake booster.
  6. Install the ignition module. Refer to Ignition Coil Module Replacement - Left Side.
  7. Rotate the oil level indicator tube back into its original position and install the bolt securing the tube to the cylinder head. Tighten the oil level indicator tube bolt to 10 N·m (89 lb in).

  8. Object Number: 928145  Size: SH
  9. Connect the PCV fresh air tube to the left camshaft cover.
  10. Install the fuel injector sight shield. Refer to Fuel Injector Sight Shield Replacement.

  11. Object Number: 63936  Size: SH
  12. Connect the vacuum hose to the brake booster.