Removal (3.8L)

WARNING: This page is about a different car, the 2003 Buick Regal, 2003 Buick Century, 2002 Buick Regal, and 2002 Buick Century. However, it is still accessible from the selected car via links, so may be relevant.

Disconnect the intake air temperature (IAT) sensor electrical connector (3). See Fig 1 .
Remove the IAT sensor with a twisting and pulling motion.
Loosen the air cleaner intake duct clamp.
Remove the air cleaner intake duct from the air cleaner cover.
Remove the air cleaner intake duct from the throttle body.

Fig 1: Identifying Air Cleaner Intake Duct (3.8L)
Courtesy of GM