GM Service Manual Online
For 1990-2009 cars only

Throttle Body Installation without RPO 9C2


    Object Number: 18303  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.

  1. Install the throttle body studs, if removed.
  2. Tighten
    Tighten the studs to 12 N·m (18 lb ft).

  3. Install the throttle body gasket.

  4. Object Number: 18302  Size: SH
  5. Install the throttle body onto the manifold.

  6. Object Number: 18299  Size: SH
  7. Install the throttle body nuts.
  8. Tighten
    Tighten the nuts to 10 N·m (89 lb in).

Throttle Body Installation with RPO 9C2


    Object Number: 18303  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.

  1. Install the throttle body studs, if removed.
  2. Tighten
    Tighten the studs to 12 N·m (18 lb ft).

  3. Install the throttle body gasket.

  4. Object Number: 18302  Size: SH
  5. Install the throttle body onto the manifold.

  6. Object Number: 354046  Size: SH
  7. Install the throttle position bracket for the govener.

  8. Object Number: 354049  Size: SH
  9. Align the slot in the throttle position bracket for the govener with the throttle body pin.

  10. Object Number: 354052  Size: SH
  11. Ensure correct placement of the slot in the throttle position bracket for the govener with the pin on the throttle body.

  12. Object Number: 354047  Size: SH
  13. Install the throttle body nuts.
  14. Tighten
    Tighten the nuts to 10 N·m (89 lb in).