GM Service Manual Online
For 1990-2009 cars only

Removal Procedure


    Object Number: 1613990  Size: SH
  1. Remove the engine sight shield. Refer to Intake Manifold Sight Shield Replacement .
  2. Remove the front and rear sections of the supercharger inlet duct. Refer to Supercharger Inlet Duct Assembly Replacement .
  3. Remove the positive crankcase ventilation (PCV) fresh air tube (1) from the left camshaft cover. Refer to Positive Crankcase Ventilation Hose/Pipe/Tube Replacement .

  4. Object Number: 1614610  Size: SH
  5. Remove the left side ignition coils (1) as an assembly. Refer to Ignition Coil Replacement - Bank 2 .

  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 the gasket mating surface on the cylinder head.
  15. Disassemble the camshaft cover, if necessary. Refer to Camshaft Cover Disassemble .
  16. Clean and inspect the camshaft cover. Refer to Camshaft Cover Cleaning and Inspection .

Installation Procedure


    Object Number: 1242782  Size: SH
  1. Install a new camshaft cover gasket to the camshaft cover, if necessary.
  2. Assemble the camshaft cover. Refer to Camshaft Cover Assemble .
  3. Place a small amount of sealant at the split line (1, 2) of the left cylinder head and the left camshaft position actuator housing. Refer to Adhesives, Fluids, Lubricants, and Sealers for the correct part number.
  4. Important: Be careful to prevent the exposed section of the camshaft cover gasket from being damaged by the edge of the cylinder head casting.

  5. Work the camshaft cover into position by pivoting the cover down and aligning the bolt holes.
  6. Notice: Refer to Fastener Notice in the Preface section.


    Object Number: 928241  Size: SH
  7. Install the camshaft cover bolts.
  8. Tighten
    Tighten the camshaft cover bolts to 10 N·m (89 lb in).


    Object Number: 928237  Size: SH
  9. Install the bolt connecting the left camshaft cover ground strap to the left camshaft cover.
  10. Tighten
    Tighten the left ground strap bolt to 10 N·m (89 lb in).

  11. Rotate the oil level indicator tube back into its original position and install the bolt securing the tube to the cylinder head.
  12. Tighten
    Tighten the oil level indicator tube bolt to 10 N·m (89 lb in).


    Object Number: 1614610  Size: SH
  13. Install the ignition coils (1) as an assembly. Refer to Ignition Coil Replacement - Bank 2 .

  14. Object Number: 1613990  Size: SH
  15. Install the positive crankcase ventilation (PCV) fresh air tube (1) to the left camshaft cover. Refer to Positive Crankcase Ventilation Hose/Pipe/Tube Replacement .
  16. Install the front and rear sections of the supercharger inlet duct. Refer to Supercharger Inlet Duct Assembly Replacement .
  17. Install the engine sight shield, cross car brace, and engine compartment sight shields. Refer to Intake Manifold Sight Shield Replacement .