GM Service Manual Online
For 1990-2009 cars only

    Object Number: 909582  Size: SH
  1. Remove any remaining spark plug wires from their retainers.
  2. Remove the ignition coil assembly bolts and nuts.
  3. Remove the ignition coil assembly.
  4. Remove the ignition coil assembly studs, if necessary.

  5. Object Number: 909586  Size: SH
  6. Remove the positive crankcase ventilation tube from the valve rocker arm cover.

  7. Object Number: 60846  Size: SH

    Notice: Valve rocker arm cover gasket and sealant must be carefully trimmed away from lower intake manifold gasket. Failure to do so will damage the lower intake manifold gasket, causing a severe oil leak.

  8. Remove the valve rocker arm cover bolts.
  9. Important: When removing the valve rocker arm cover make sure the gasket stays in place attached to the cylinder head.

  10. Remove the valve rocker arm cover.
  11. Remove and discard the valve rocker arm cover gasket, valve rocker arm cover grommets and valve rocker arm cover bolts if they are serviced with the grommet.

  12. Object Number: 190588  Size: SH
  13. Trim valve cover gasket and sealant away from lower intake manifold gasket at the cylinder head to lower intake manifold joints (1).
  14. Remove the valve rocker arm cover gasket.