GM Service Manual Online
For 1990-2009 cars only

Notice: Handle the intake air temperature (IAT) sensor carefully. A damaged IAT sensor will affect proper operation of the fuel injection system.

Removal Procedure

Typical IAT Sensor shown.

The IAT sensor is located on the air intake housing.


    Object Number: 179039  Size: SH
  1. Remove the IAT sensor electrical connector.
  2. Carefully grasp the sensor and with a twisting and pulling motion, remove the IAT sensor from air intake duct.

Installation Procedure

Typical IAT Sensor shown.


    Object Number: 179039  Size: SH
  1. Install the IAT Sensor into the hole.
  2. Connect the IAT Sensor electrical connector.