GM Service Manual Online
For 1990-2009 cars only

Removal Procedure

    Caution: Refer to Battery Disconnect Caution in the Preface section.


    Object Number: 1371851  Size: SH
  1. Disconnect the negative battery cable.
  2. Remove the engine cover bolts and cover.

  3. Object Number: 1371852  Size: SH
  4. Disconnect the breather tube from the valve cover.

  5. Object Number: 1371853  Size: SH
  6. Disconnect the crankcase ventilation tube from the valve cover.

  7. Object Number: 1371854  Size: SH
  8. Disconnect the camshaft position (CMP) sensor connector.

  9. Object Number: 1371855  Size: SH
  10. Disconnect all of the necessary vacuum lines.
  11. Disconnect the ignition wires from the spark plugs.

  12. Object Number: 1371856  Size: SH
  13. Remove the valve cover bolts.
  14. Remove the valve cover.

  15. Object Number: 1371857  Size: SH
  16. Remove the valve cover gasket from the valve cover.

Installation Procedure


    Object Number: 1371857  Size: SH
  1. Apply a small amount of gasket sealant to the corners of the front camshaft caps and the top of the rear valve cover to cylinder head seal.
  2. Install the new valve cover gasket to the valve cover.

  3. Object Number: 1371856  Size: SH
  4. Install the valve cover.
  5. Notice: Refer to Fastener Notice in the Preface section.

  6. Install the valve cover bolts.
  7. Tighten
    Tighten the valve cover bolts to 10 N·m (89 lb in).


    Object Number: 1371855  Size: SH
  8. Connect the ignition wires from the spark plugs.
  9. Connect all of the necessary vacuum lines.

  10. Object Number: 1371854  Size: SH
  11. Connect the CMP sensor connector.

  12. Object Number: 1371853  Size: SH
  13. Connect the crankcase ventilation tube from the valve cover.

  14. Object Number: 1371852  Size: SH
  15. Connect the breather tube from the valve cover.

  16. Object Number: 1371851  Size: SH
  17. Install the engine cover.
  18. Install the engine cover bolts.
  19. Tighten
    Tighten the engine cover bolts to 3 N·m (27 lb in).

  20. Connect the negative battery cable.