GM Service Manual Online
For 1990-2009 cars only

Removal Procedure

  1. Drain the engine coolant. Refer to Cooling System Draining and Filling.
  2. Remove the engine cover. Refer to Engine Cover Replacement.

  3. Object Number: 2016606  Size: SH
  4. Remove the air cleaner cap sub-assembly with hose.
  5. Disconnect the mass air flow meter connector (3) and the 2 wire harness clamps (1, 2).

  6. Object Number: 2016608  Size: SH
  7. Disconnect the ventilation hose and loosen the hose clamp (2).

  8. Object Number: 2016609  Size: SH
  9. Unlock the 2 clamps (1) and remove the air cleaner cap sub-assembly with hose.

  10. Object Number: 2016610  Size: SH
  11. Disconnect the throttle body connector (1) and the 2 water by-pass hoses (2).

  12. Object Number: 2016611  Size: SH
  13. Remove the 2 bolts (2, 4) and the 2 nuts (1, 3), and remove the throttle body assembly.

  14. Object Number: 2016612  Size: SH
  15. Remove the gasket (1) from the intake manifold.

Installation Procedure


    Object Number: 2016612  Size: SH
  1. Install a new gasket (1) onto the intake manifold.
  2. Caution: Refer to Fastener Caution in the Preface section.

  3. Install the throttle body assembly with the 2 bolts and 2 nuts and tighten to 10N·m (7 lb ft).

  4. Object Number: 2016610  Size: SH
  5. Connect the 2 water by-pass hoses (2) and the throttle body connector (1).
  6. Install the air cleaner cap sub-assembly with hose and lock the 2 clamps.

  7. Object Number: 2016613  Size: SH
  8. Tighten the hose clamp (1) to 2.0N·m (18 lb in).

  9. Object Number: 2016614  Size: SH
  10. Connect the ventilation hose (1).

  11. Object Number: 2016606  Size: SH
  12. Connect the wire harness clamp (1, 2) and mass air flow meter connector (3).
  13. Add engine coolant. Refer to Cooling System Draining and Filling.
  14. Inspect for a coolant leak.
  15. Install the engine cover. Refer to Engine Cover Replacement.