GM Service Manual Online
For 1990-2009 cars only

Intake Air Temperature Sensor Replacement for Pontiac Grand Prix 1999

Removal Procedure

Typical IAT Sensor shown.

The IAT sensor is located on the air intake housing.


    Object Number: 12347  Size: SH
  1. Disconnect 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


    Object Number: 12347  Size: SH
  1. Install the IAT Sensor (snap into place).
  2. Connect the IAT sensor electrical connector.