GM Service Manual Online
For 1990-2009 cars only

    Object Number: 309727  Size: SH

    Important: Do not remove the positive crankcase ventilation (PCV) valve grommet from the cover unless service is required.

    If the grommet has been removed from the cover, a NEW grommet must be installed.

  1. Remove the ignition coil and bracket assembly and bolts.

  2. Object Number: 260085  Size: SH
  3. Remove the valve rocker arm cover bolts.
  4. Remove the valve rocker arm cover.

  5. Object Number: 490696  Size: SH
  6. Remove the gasket (1) from the cover.
  7. Discard the gasket.
  8. The bolt grommets may be used again if not damaged.


    Object Number: 309850  Size: SH
  9. Remove the ignition coils, wire harness, and bolts from the bracket, if required.