GM Service Manual Online
For 1990-2009 cars only

Removal Procedure

    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.

  1. Disconnect the negative battery cable.

  2. Object Number: 416588  Size: SH
  3. Disconnect the intake air temperature (IAT) sensor harness connector.

  4. Object Number: 424590  Size: SH
  5. Remove the IAT sensor by grasping the sensor, twist and pull out from the air cleaner outlet duct.

Installation Procedure


    Object Number: 424590  Size: SH
  1. Install the IAT sensor.

  2. Object Number: 416588  Size: SH
  3. Connect the IAT sensor harness connector.
  4. Connect the negative battery cable.