GM Service Manual Online
For 1990-2009 cars only

    Object Number: 1953  Size: SH
  1. Remove the throttle cable support bracket.

  2. Object Number: 1952  Size: SH
  3. Remove the MAP sensor.
  4. Remove the EGR valve.

  5. Object Number: 1954  Size: SH
  6. Remove the upper intake manifold bolts.
  7. Remove the upper intake manifold.

  8. Object Number: 1955  Size: SH
  9. Remove the EGR injector.

  10. Object Number: 15087  Size: SH
  11. Remove the fuel injector retainer bracket.

  12. Object Number: 15088  Size: SH
  13. Disconnect the fuel pressure regulator from the lower intake manifold.

  14. Object Number: 15089  Size: SH
  15. Remove the fuel injectors.

  16. Object Number: 15090  Size: SH
  17. Disconnect the fuel pressure connection fitting.

  18. Object Number: 3437  Size: SH
  19. Remove the lower intake manifold nuts.
  20. Remove the lower intake manifold.

  21. Object Number: 3436  Size: SH
  22. Remove the lower intake manifold gasket.
  23. Clean the sealing surfaces on the upper and lower intake manifold and on the Cylinder head.