GM Service Manual Online
For 1990-2009 cars only

    Object Number: 260102  Size: SH

    Important: In order to properly remove the exhaust manifold, remove the AIR components when applicable.

  1. Remove the Air Injection Reaction (AIR) center pipe bolt.

  2. Object Number: 260106  Size: SH
  3. Loosen the hose clamps and remove the hose assembly.

  4. Object Number: 260103  Size: SH

    Important: Do not remove the check valve from the AIR pipe unless service is required.

  5. Remove the AIR pipe (with check valve), nuts and gasket from the left exhaust manifold.
  6. Remove the AIR pipe studs from the manifold (if required).
  7. Remove the spark plug wires from the spark plugs.
  8. Do not remove the spark plug wires from the ignition coils unless required.


    Object Number: 260074  Size: SH
  9. Remove the exhaust manifold, bolts, and gasket.
  10. Discard the gasket.

  11. Object Number: 492766  Size: SH
  12. Remove the heat shield (2) and bolts (3) from the manifold (1) (if required).