GM Service Manual Online
For 1990-2009 cars only

Removal Procedure


    Object Number: 951542  Size: SH
  1. Disconnect the intake air temperature (IAT) sensor connector.

  2. Object Number: 898897  Size: SH
  3. Loosen the clamp a the air cleaner assembly.
  4. Remove the push pin attachment from the outlet resonator/duct assembly to support bracket.
  5. Loosen the clamp at the throttle body assembly.
  6. Disconnect the positive crankcase ventilation (PCV) fresh air vent hose at the cam cover.
  7. Remove the outlet resonator/duct assembly.

  8. Object Number: 897640  Size: SH

    Notice: Cover the throttle body with a shop towel. Using air, clean the base of the throttle body to prevent debris from entering the manifold when the throttle body is removed.

  9. Cover the throttle body opening with a shop towel and use the shop air to remove any dirt at the base of the throttle body.

  10. Object Number: 947518  Size: SH
  11. Disconnect the electrical connector at throttle body.

  12. Object Number: 947783  Size: SH
  13. Remove the throttle body bolts.
  14. Remove the throttle body.
  15. Important: The throttle body-to-manifold gasket is not reusable.

  16. Remove the gasket and discard.

  17. Object Number: 951566  Size: SH

    Notice: Cover the intake manifold opening with a shop towel whenever the throttle body is removed to prevent foreign material entry.

  18. Block the intake manifold opening with a clean shop towel to prevent dirt from entering.

Installation Procedure


    Object Number: 951566  Size: SH
  1. Remove the shop towel from the throttle body opening.

  2. Object Number: 947783  Size: SH
  3. Install the throttle body gasket.
  4. Notice: Refer to Fastener Notice in the Preface section.

  5. Install the throttle body assembly and bolts.
  6. Tighten
    Tighten the throttle body-to-intake manifold bolts - L61 to 10 N·m (89 lb in).


    Object Number: 947518  Size: SH
  7. Connect the throttle body electrical connector.

  8. Object Number: 898897  Size: SH
  9. Position the outlet resonator/duct assembly into position.
  10. Connect PCV fresh air vent hose assembly.
  11. Tighten the clamp at throttle body assembly.
  12. Position the outlet resonator/duct assembly up with support bracket and install the push-pin.
  13. Tighten the clamp at the air cleaner assembly.
  14. Connect the IAT sensor connector.
  15. Turn the ignition ON for one minute while the engine control module (ECM) automatically relearns throttle position.