GM Service Manual Online
For 1990-2009 cars only

Removal Procedure

Notice: Handle the electronic throttle control components carefully. Use cleanliness in order to prevent damage. Do not drop the electronic throttle control components. Do not roughly handle the electronic throttle control components. Do not immerse the electronic throttle control components in cleaning solvents of any type.


    Object Number: 1530325  Size: SH
  1. Remove the air cleaner outlet duct. Refer to Air Cleaner Assembly Replacement .
  2. Remove the engine sight shield. Refer to Upper Intake Manifold Sight Shield Replacement in Engine Mechanical - 6.0L.
  3. Disconnect the throttle actuator motor electrical connector.

  4. Object Number: 1401966  Size: SH
  5. Remove the throttle body nuts (507).
  6. Remove the throttle body bolts (538).
  7. Remove the throttle body (508) and the gasket (509).
  8. Important: Do not reuse the throttle body gasket. Install a new gasket during assembly.

  9. Discard the throttle body gasket.

Installation Procedure


    Object Number: 1401966  Size: SH
  1. Install a NEW throttle body gasket (509).
  2. Notice: Refer to Fastener Notice in the Preface section.

  3. Install the throttle body (508).
  4. Install the throttle body nuts (507).
  5. Tighten
    Tighten the nuts to 10 N·m (89 lb in).

  6. Install the throttle body bolts (538).
  7. Tighten
    Tighten the bolts to 10 N·m (89 lb in).

    Important: Verify that the throttle actuator motor harness connector and the connector seal are properly installed and not damaged.

  8. Connect the throttle actuator motor electrical connector.
  9. Install the engine sight shield. Refer to Upper Intake Manifold Sight Shield Replacement in Engine Mechanical - 6.0L.
  10. Install the air cleaner outlet duct. Refer to Air Cleaner Assembly Replacement .

  11. Object Number: 1530325  Size: SH
  12. Connect a scan tool in order to test for proper throttle-opening and throttle-closing range.
  13. Operate the accelerator pedal and monitor the throttle angles. The accelerator pedal should operate freely, without binding, between a closed throttle, and a wide open throttle (WOT).
  14. Verify that the vehicle meets the following conditions:
  15. • The vehicle is not in a reduced engine power mode.
    • The ignition is ON.
    • The engine is OFF.
  16. Start the engine.
  17. Inspect for coolant leaks.