GM Service Manual Online
For 1990-2009 cars only

    Object Number: 1369211  Size: SH
  1. Remove the manifold absolute pressure (MAP) sensor bolt (504), the clip (505), and the sensor (506) from the upper intake manifold.
  2. Remove the heater outlet pipe hose clamp and hose from the pipe.
  3. Remove the heater outlet pipe nuts and bolt (310, 311, 318) from the upper intake manifold.
  4. Remove the heater outlet pipe (309).

  5. Object Number: 1369239  Size: SH
  6. Remove the fresh air tube and the wire harness retaining bolt (557).
  7. Remove the ignition module nuts (702) and bolts (703).
  8. Remove the ignition module with the ignition wires attached (700).
  9. Remove the ignition module studs (701).
  10. Remove the PCV fresh air tube (529).

  11. 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.

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

  12. Remove the valve rocker arm cover bolts.
  13. Remove the valve rocker arm cover.
  14. 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.

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