GM Service Manual Online
For 1990-2009 cars only

Removal Procedure


    Object Number: 15093  Size: SH
  1. Remove the injector sight shield. Refer to Fuel Injector Sight Shield Replacement in Engine Mechanical.

  2. Object Number: 178680  Size: SH
  3. Disconnect the throttle position (TP) sensor electrical connector.

  4. Object Number: 178693  Size: SH
  5. Remove the 2 TP sensor attaching screws.

  6. Object Number: 178694  Size: SH
  7. Remove the TP sensor.

Installation Procedure


    Object Number: 178694  Size: SH
  1. Install the TP sensor to the throttle body assembly.

  2. Object Number: 178693  Size: SH

    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.

  3. Apply a thread-locking compound on the screws and install the 2 TP sensor attaching screws. Loctite 262®, GM P/N 1052624, or equivalent should be used.
  4. Tighten
    Tighten the screws to 2 N·m (18 in lb)


    Object Number: 178680  Size: SH
  5. Connect the TP sensor electrical connector.

  6. Object Number: 15093  Size: SH
  7. Reinstall the injector sight shield. Refer to Fuel Injector Sight Shield Replacement in Engine Mechanical.