GM Service Manual Online
For 1990-2009 cars only

Removal Procedure


    Object Number: 17661  Size: SH
  1. Remove the negative battery cable.
  2. Caution: Unless directed otherwise, the ignition and start switch must be in the OFF or LOCK position, and all electrical loads must be OFF before servicing any electrical component. Disconnect the negative battery cable to prevent an electrical spark should a tool or equipment come in contact with an exposed electrical terminal. Failure to follow these precautions may result in personal injury and/or damage to the vehicle or its components.

  3. Remove the air cleaner resonator (2) from throttle body (3).

  4. Object Number: 13710  Size: SH
  5. Remove the electrical connectors from IAC valve and TP sensor.
  6. Remove the vacuum hoses at throttle body (3).
  7. Remove the throttle, cruise, and transmission control cables.
  8. Remove the accelerator cable bracket (2).
  9. Remove the MAP sensor.
  10. Remove the throttle body attaching bolts (1).
  11. Loosen throttle body from manifold.

Installation Procedure


    Object Number: 13710  Size: SH

    Notice: The EVAP canister may have released carbon particles which caused this part to fail and may cause damage to other components. Check the EVAP canister for loose carbon before returning the vehicle to service.

  1. Install the throttle body (3).
  2. Install the accelerator cable bracket (2).
  3. Install the MAP sensor.
  4. Install the throttle body attaching bolts (1).
  5. Tighten
    Tighten the throttle body attaching bolts to 6.5 N·m (58 lb in).

    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.

  6. Install the throttle, cruise, and transmission control cables to throttle body.
  7. Install the vacuum hoses to throttle body.
  8. Install the electrical connectors to IAC valve (2) and TP sensor (6).

  9. Object Number: 17661  Size: SH
  10. Install the air cleaner resonator (2) to throttle body (3).
  11. Important: With the engine OFF, check to see that the accelerator pedal is free, by depressing the pedal to the floor and releasing.

  12. Install the negative battery cable.
  13. Reset IAC valve pintle position:
  14. 10.1. Turn ignition switch to the ON position (engine OFF).
    10.2. Turn ignition OFF for ten seconds.
    10.3. Start engine and check for proper idle operation.