GM Service Manual Online
For 1990-2009 cars only

Removal Procedure

  1. Relieve the fuel system pressure. Refer to Fuel Pressure Relief in Engine-Engine Controls.

  2. Object Number: 193392  Size: SH
  3. Remove the air cleaner inlet duct (1).

  4. Object Number: 193394  Size: SH
  5. Remove the resonator.

  6. Object Number: 193395  Size: SH
  7. Remove the resonator bracket/fuel rail cover.
  8. Disconnect the vacuum hoses at the throttle body.

  9. Object Number: 183480  Size: SH
  10. Remove the throttle body. Refer to Throttle Body Assembly Replacement in Engine-Engine Controls.

  11. Object Number: 193512  Size: SH
  12. Disconnect the MAP sensor.

  13. Object Number: 193410  Size: SH
  14. Remove fuel rail. Refer to Fuel Injection Fuel Rail Assembly Replacement in Engine-Engine Controls.
  15. Raise vehicle. Refer to Lifting and Jacking the Vehicle in General Information-General Information.
  16. Disconnect the following components:
  17. • Evap purge solenoid
    • Camshaft sensor
    • Crankshaft sensor
    • VSS
    • Knock sensor
    • Back-up lamp switch
    • Oxygen sensor
    • Oil pressure switch
  18. Lower vehicle.
  19. Unroute wiring harness.
  20. Remove the intake manifold attaching nuts and the bolts.

  21. Object Number: 182943  Size: SH
  22. Remove the intake manifold from the engine.
  23. Clean the mating surfaces on the intake manifold and the cylinder head.
  24. Inspect the manifold for cracks, broken flanges, and gasket surface damage.

Installation Procedure

  1. Install the intake manifold assembly.

  2. Object Number: 182943  Size: SH
  3. Install the intake manifold to cylinder head bolts and the nuts.
  4. Tighten
    Tighten nuts and bolts to 24 N·m (17 lb ft.).

    Tighten
    Tighten studs to 12 N·m (107 lb in.).

  5. Route wiring harness.
  6. Raise vehicle.
  7. Connect the following components:
  8. • Evap purge solenoid
    • Camshaft sensor
    • Crankshaft sensor
    • VSS
    • Knock sensor
    • Back-up lamp switch
    • Oxygen sensor
    • Oil pressure switch

    Object Number: 193410  Size: SH
  9. Install the fuel rail. Refer to Fuel Injection Fuel Rail Assembly Replacement in Engine-Engine Controls.

  10. Object Number: 193512  Size: SH
  11. Connect the MAP sensor.

  12. Object Number: 183480  Size: SH
  13. Install the throttle body. Refer to Throttle Body Assembly Replacement in Engine-Engine Controls.

  14. Object Number: 193395  Size: SH
  15. Install the resonator bracket/fuel rail cover.

  16. Object Number: 193394  Size: SH
  17. Install the resonator.

  18. Object Number: 193392  Size: SH
  19. Install the air cleaner inlet duct (1).