GM Service Manual Online
For 1990-2009 cars only

Removal Procedure

  1. Turn OFF the ignition.

  2. Object Number: 69056  Size: SH
  3. Disconnect the electrical connector from the idle air control valve.

  4. Object Number: 185614  Size: SH
  5. Remove the idle air control valve attaching screws.

  6. Object Number: 185583  Size: SH
  7. Remove the idle air control valve.

  8. Object Number: 185626  Size: SH
  9. Remove the idle air control valve O-ring.

Installation Procedure

Notice: The IAC valve may be damaged if installed with the cone (pintle) extended more than 28 mm (1-1/8 in). Measure the distance that the valve is extended before installing a new valve. The distance from the idle air control valve motor housing to the end of the idle air control valve pintle should be less than 28 mm (1-1/8 in). Manually compress the pintle until the extension is less than 28 mm (1-1/8 in).


    Object Number: 185626  Size: SH
  1. Install the new idle air control O-ring.

  2. Object Number: 185583  Size: SH
  3. Install the idle air control valve in the intake manifold.

  4. Object Number: 185614  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.

  5. Install the idle air control valve attaching screws.
  6. Tighten
    Tighten the idle air control valve attaching screws to 3.0 N·m (27 lb in).


    Object Number: 69056  Size: SH
  7. Connect the idle air control valve electrical connector.
  8. The PCM will reset the idle air control valve whenever the ignition switch is turned ON, then OFF. Turn ON the ignition, then OFF.
  9. Start the engine and allow the engine to reach operating temperature.