GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Pontiac 🢒 1999 🢒 Grand Prix 🢒 Engine 🢒 Engine Controls - 3.8L 🢒 Intake Air Temperature Sensor Replacement

Removal Procedure

    Object Number: 74279 Size: SH

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

  1. Disconnect the IAT sensor electrical connector.
  2. 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.