GM Service Manual Online
For 1990-2009 cars only

    Object Number: 1864750  Size: SH
  1. Disconnect and remove the fresh air positive crankcase ventilation (PCV) hose from the left camshaft cover fitting.

  2. Object Number: 1864751  Size: SH
  3. Remove the rear intake manifold insulator.

  4. Object Number: 1864752  Size: SH
  5. Disconnect and remove the dirty air PCV hose from the intake manifold and the right camshaft cover fitting.

  6. Object Number: 1864753  Size: SH
  7. Remove the front intake manifold insulator.

  8. Object Number: 1864754  Size: SH
  9. Disconnect and remove the intake manifold-to-solenoid evaporative emission (EVAP) hose from the intake manifold and from the EVAP solenoid.

  10. Object Number: 1864755  Size: SH
  11. Remove the EVAP solenoid bolt.

  12. Object Number: 1864756  Size: SH
  13. Remove the EVAP solenoid.

  14. Object Number: 1864757  Size: SH
  15. Remove the right intake manifold insulator bolts.

  16. Object Number: 1864758  Size: SH
  17. Remove the right intake manifold insulator.

  18. Object Number: 1864759  Size: SH
  19. Remove the left intake manifold insulator bolts.

  20. Object Number: 1864760  Size: SH
  21. Remove the left intake manifold insulator.

  22. Object Number: 1864761  Size: SH
  23. Remove the long intake manifold bolts.

  24. Object Number: 1864763  Size: SH
  25. Remove the short intake manifold bolts.

  26. Object Number: 1864764  Size: SH
  27. Remove the intake manifold assembly.

  28. Object Number: 1864766  Size: SH
  29. Remove and discard the lower intake manifold gasket.