Where is the idle air controller on 2002 Chevy truck 5.3 liter 1500 single cab z71?

On a 2002 Chevy Silverado 1500 5.3L with a single cab, the Idle Air Control (IAC) valve is typically located on the throttle body. The throttle body itself is found on the intake manifold, usually near the front of the engine. It's a relatively small, cylindrical component usually with one or more electrical connectors attached.

To be certain:

1. Visual Inspection: The best way is to consult a repair manual specific to your year, make, and model. A picture will help confirm its location. Look at diagrams of your engine's intake manifold.

2. Online Resources: Search online for "2002 Chevy Silverado 5.3L IAC valve location" along with pictures. Many repair sites and forums have photos that can guide you.

Important Note: Because there are variations in engine configurations, a visual check is the only definitive way to locate the part.