GM Service Manual Online
For 1990-2009 cars only

Removal Procedure

  1. Remove the engine cover. Refer to Engine Cover Replacement .
  2. Remove the oil filler tube.

  3. Object Number: 1938601  Size: SH
  4. Remove the positive crankcase ventilation (PCV) hose (1).

  5. Object Number: 869731  Size: SH
  6. Remove the rocker arm cover bolts.
  7. Remove and discard the rocker arm cover bolt grommets, if necessary.
  8. Remove the rocker arm cover.

  9. Object Number: 328573  Size: SH
  10. Remove and discard the rocker arm cover gasket.
  11. Clean and inspect the rocker arm cover, if necessary. Refer to Valve Rocker Arm Cover Cleaning and Inspection .

Installation Procedure

Important: Do not reuse the cover gasket or the valve rocker arm cover bolt grommets.


    Object Number: 328573  Size: SH
  1. Install a NEW rocker arm cover gasket.
  2. Install NEW rocker arm cover bolt grommets, if necessary.
  3. Notice: Refer to Fastener Notice in the Preface section.


    Object Number: 869731  Size: SH
  4. Install the rocker arm cover.
  5. Install the rocker arm cover bolts.
  6. Tighten
    Tighten the bolts to 12 N·m (106 lb in).


    Object Number: 1938601  Size: SH
  7. Install the PCV hose (1).
  8. Install the oil filler tube.
  9. Install the engine cover. Refer to Engine Cover Replacement .