GM Service Manual Online
For 1990-2009 cars only

Important: 

   • Do not reuse the valve rocker arm cover gasket. Install a NEW gasket during assembly.
   • Remove the ignition coils before cleaning the cover in solvent. Do not submerge the ignition coils in solvent.
   • Note the location of the beauty cover mounting studs for assembly.
   • Do not remove the oil fill tube or crankcase vent valve grommett from the covers unless service is required.
   • If the oil fill tube or crankcase vent valve grommet have been removed from the rocker arm covers, install a NEW tube or grommett during assembly.


    Object Number: 65292  Size: SH
  1. Remove the ignition coils, bolts and wire harness from the left cover (if required).

  2. Object Number: 65290  Size: SH
  3. Remove the ignition coils, bolts and wire harness from the right cover (if required).

  4. Object Number: 64263  Size: SH
  5. Remove the oil fill cap and tube from the right cover (if required).

  6. Object Number: 63244  Size: SH
  7. Remove the crankcase vent valve grommet from the left cover (if required).
  8. Remove the gaskets from the covers.
  9. Remove the cover mounting bolts (with grommets).
  10. Cover mounting bolts and grommets that are not damaged may be reused during assembly.

  11. Clean the covers in solvent.

  12. Object Number: 65290  Size: SH

    Caution: Wear safety glasses in order to avoid eye damage.

  13. Dry the covers with compressed air.
  14. Inspect the ventilation system passages for restrictions.
  15. Inspect the gasket grooves for damage.
  16. Inspect the coil mounting bosses threaded bolt holes for damaged threads or debris.

  17. Object Number: 64263  Size: SH
  18. Inspect the oil fill tube and the crankcase vent valve grommet for a loose fit or damage.