GM Service Manual Online
For 1990-2009 cars only

The IAT sensor is mounted in the rear air intake duct.

Removal Procedure

  1. Disconnect the negative battery cable. Refer to Battery Negative Cable Disconnection and Connection in Engine Electrical.

  2. Object Number: 74279  Size: SH
  3. Disconnect the IAT sensor electrical connector.
  4. Grasp and remove the IAT sensor (3) with a twisting and pulling motion.

Installation Procedure


    Object Number: 74279  Size: SH
  1. Position and insert the IAT sensor (3) into the rear air intake duct (2).
  2. Connect the electrical connector.
  3. Connect the negative battery cable. Refer to Battery Negative Cable Disconnection and Connection in Engine Electrical.