GM Service Manual Online
For 1990-2009 cars only

    Object Number: 522640  Size: SH
  1. Remove the brake booster hose from the throttle body.

  2. Object Number: 522641  Size: SH
  3. Remove the fuel pressure regulator vacuum tube from the fuel pressure regulator and the water crossover.

  4. Object Number: 522644  Size: SH
  5. Remove the PCV fresh air feed tube from the camshaft cover and the throttle body.

  6. Object Number: 798638  Size: SH
  7. Remove the PCV dirty air tube from the PCV orifice in the right camshaft cover and from the intake manifold.

  8. Object Number: 490817  Size: SH
  9. Disconnect the fuel injector electrical connectors (1) from the fuel injectors.
  10. Remove the fuel injector wiring harness.

  11. Object Number: 522654  Size: SH
  12. Remove the fuel rail bracket nut from the engine lift bracket.

  13. Object Number: 522658  Size: SH
  14. Remove the fuel rail studs.
  15. Lift and remove the fuel rail with injectors.

  16. Object Number: 522666  Size: SH
  17. Loosen the plenum duct clamp (1) in order to remove the intake manifold.

  18. Object Number: 522669  Size: SH
  19. Remove the intake manifold bolts.

  20. Object Number: 880571  Size: SH
  21. Remove the intake manifold.