Where is the IAT sensor on 2006 Chevy 5.3 Liter vortec engine?

The Intake Air Temperature (IAT) sensor on a 2006 Chevy 5.3L Vortec engine is located in the intake tube, usually near the mass airflow sensor (MAF). It's a small, usually black, sensor with a wire harness connected to it. It's often mounted directly to the intake tube itself or to a bracket very close to it.

Because there's some variation depending on the exact configuration of the intake system (some have slightly different intake tubes), the best approach is to:

1. Consult your owner's manual: It should have a diagram showing sensor locations.

2. Use a repair manual or online diagrams: Websites like GMPartsDirect or others specializing in GM parts often have diagrams. Search for "2006 Chevy 5.3L Vortec IAT sensor location."

3. Look closely at the intake tube: Follow the wiring harness from the mass airflow sensor; the IAT sensor is often nearby and connected to a similar type of harness.

Don't confuse it with the MAF sensor; while close, they are distinct components.