GM Service Manual Online
For 1990-2009 cars only

Removal Procedure

Notice: The TP sensor is an electrical component. Do not soak the TP sensor in any liquid cleaner or solvent as damage may result.

Important: If the vehicle is equipped with electronic throttle control (ETC) the throttle position (TP) sensor is NOT serviceable. The throttle body and TP sensor MUST be serviced as a complete assembly.


    Object Number: 389028  Size: SH
  1. Remove the generator. Refer to Generator Replacement in Engine Electrical.
  2. Disconnect the TP sensor electrical connector.

  3. Object Number: 356448  Size: SH
  4. Remove the TP sensor screws (5).
  5. Remove the TP sensor (6).
  6. Remove the TP sensor O-ring seal (7).

Installation Procedure


    Object Number: 356448  Size: SH
  1. Install the TP sensor O-ring seal (7).
  2. Install the TP sensor into the throttle body with the throttle valve in the closed position. Make sure the TP sensor lever lines up with the TP sensor drive lever on the throttle shaft.
  3. Notice: Use the correct fastener in the correct location. Replacement fasteners must be the correct part number for that application. Fasteners requiring replacement or fasteners requiring the use of thread locking compound or sealant are identified in the service procedure. Do not use paints, lubricants, or corrosion inhibitors on fasteners or fastener joint surfaces unless specified. These coatings affect fastener torque and joint clamping force and may damage the fastener. Use the correct tightening sequence and specifications when installing fasteners in order to avoid damage to parts and systems.

  4. Install the TP sensor screws (5).
  5. Tighten
    Tighten the screws to 2 N·m (18 lb in).


    Object Number: 389028  Size: SH
  6. Connect the TP sensor electrical connector.
  7. Install the generator. Refer to Generator Replacement in Engine Electrical.