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: 1554091  Size: SH
  1. Remove the screw (1) retaining the vacuum tank (2), and remove the vacuum tank.

  2. Object Number: 1554098  Size: SH
  3. Disconnect the electrical connector (1) of the accelerator pedal sensor module (2).

  4. Object Number: 1554101  Size: SH
  5. Remove the accelerator pedal mounting bolts (1).
  6. Slide the APP sensor upwards, to disengage the sensor from the support bracket (3).
  7. Remove the accelerator pedal (2).

Installation Procedure


    Object Number: 1554101  Size: SH
  1. Install the accelerator pedal.
  2. Slide the APP sensor downwards, to engage the sensor to the support bracket (3).
  3. Notice: Refer to Fastener Notice in the Preface section.

  4. Important: Always use a torque wrench in order to obtain the proper torque.

  5. Install the accelerator pedal mounting bolts.
  6. Tighten
    Tighten the accelerator pedal mounting bolts to 10 N·m (7 lb ft).


    Object Number: 1554098  Size: SH
  7. Connect the accelerator pedal sensor module electrical connector.
  8. Inspect for complete throttle opening, and throttle closing positions by operating the accelerator pedal. Monitor the throttle angles using a scan tool. The accelerator pedal should operate freely without binding between full closed throttle, and wide open throttle.
  9. Inspect for an incorrect carpet fit under the accelerator pedal.

  10. Object Number: 1554091  Size: SH
  11. Install the vacuum tank, and secure the retaining screw.