GM Service Manual Online
For 1990-2009 cars only

Intake Manifold Removal Upper


    Object Number: 36609  Size: SH
  1. Remove the right spark plug wires.
  2. Remove the manifold vacuum source.
  3. Remove the EGR outlet pipe bolt and nut.
  4. Remove the EGR outlet pipe from the intake manifold.
  5. Notice: The two bolts which fasten the lower intake manifold to the cylinder head are accessible only after the upper intake is removed. The bolts are located in the right front and left rear corners of the lower intake manifold. Remove the upper intake manifold to service the lower intake.


    Object Number: 36624  Size: SH
  6. Remove the throttle body nuts and bolt.
  7. Remove the throttle body.
  8. Remove the throttle body gasket.

  9. Object Number: 36631  Size: SH
  10. Remove the fuel injectior rail nuts.
  11. Remove the fuel injector rail.

  12. Object Number: 36634  Size: SH
  13. Remove the upper intake manifold bolts.
  14. Remove the upper intake manifold.
  15. Remove the upper intake manifold gasket.

Intake Manifold Removal Lower


    Object Number: 566980  Size: SH
  1. Remove the ignition control module and bracket.
  2. Remove the generator bracket.

  3. Object Number: 50046  Size: SH
  4. Remove the lower intake manifold bolts.
  5. Notice: The two bolts which fasten the lower intake manifold to the cylinder head are accessible only after the upper intake is removed. The bolts are located in the right front and left rear corners of the lower intake manifold. Remove the upper intake manifold to service the lower intake.

  6. Remove the lower intake manifold.
  7. Remove the lower intake manifold gasket.