GM Service Manual Online
For 1990-2009 cars only

Notice: Never attempt to remove the intake manifold from a hot engine, allow the engine to cool to ambient temperature. The intake manifold is made of a composite plastic and can be damaged if it is removed when the engine is hot.


    Object Number: 33604  Size: SH
  1. Remove the throttle body.
  2. Remove the intake manifold support brace.

  3. Object Number: 33605  Size: SH
  4. Disconnect the fuel pressure regulator hose.
  5. Remove the EGR pipe from the EGR adapter.

  6. Object Number: 33607  Size: SH
  7. Remove the intake manifold retaining nuts and bolts.
  8. Remove the intake manifold.
  9. Remove the intake manifold gasket. The gasket is reusable if it is not damaged.

  10. Object Number: 33613  Size: SH
  11. Remove the EGR pipe from the intake manifold.
  12. If the intake manifold needs to be replaced, transfer the following parts:
  13. • The throttle body
    • The throttle body gasket. The manifold to the throttle body gasket is reusable if it is not damaged.
    • The EGR tube. The O-ring is reusable if it is not damaged.