GM Service Manual Online
For 1990-2009 cars only

Removal Procedure

  1. Turn the ignition OFF.
  2. Remove the air cleaner intake duct. Refer to Air Cleaner Inlet Duct Replacement .
  3. Notice: Refer to Disengaging Connectors Notice in the Preface section.


    Object Number: 945417  Size: SH
  4. Remove the throttle body electrical connector.

  5. Object Number: 1285256  Size: SH
  6. Unlock and reposition the wiring harness conduit.

  7. Object Number: 1285255  Size: SH
  8. Remove the throttle body bolts.
  9. Remove the throttle body and gasket.

Installation Procedure


    Object Number: 1285255  Size: SH
  1. Carefully clean the throttle body mounting surfaces of any gasket and/or seal material.
  2. Install the throttle body and NEW gasket.
  3. Notice: Refer to Fastener Notice in the Preface section.

  4. Install the throttle body bolts.
  5. Tighten
    Tighten the throttle body bolts to 10 N·m (89 lb in).


    Object Number: 1285256  Size: SH
  6. Install the wiring harness conduit.

  7. Object Number: 945417  Size: SH
  8. Install the throttle body electrical connector.
  9. Install the air cleaner intake duct. Refer to Air Cleaner Inlet Duct Replacement .
  10. Perform the idle learn procedure. Refer to Idle Learn .
  11. Use the scan tool to clear all DTCs.