Where is the idle air control valve on a 2006 Chevrolet Silverado?

The IAC valve (Idle Air Control) on a 2006 Chevrolet Silverado 1500 is located on the throttle body. It's a small valve usually found on the side or top of the throttle body, often with a single electrical connector attached.

However, the exact location can vary slightly depending on the specific engine (4.3L, 4.8L, 5.3L, or 6.0L). To be absolutely certain, you'll need to:

1. Consult your vehicle's repair manual: This is the most reliable source. The manual will have diagrams showing the location of all components.

2. Use a reliable online parts diagram: Websites selling auto parts (like AutoZone, Advance Auto Parts, etc.) often have detailed diagrams you can browse using your vehicle's year, make, and model. Search for "2006 Chevy Silverado throttle body diagram".

Caution: Before working on any part of your vehicle's engine, disconnect the negative battery terminal to prevent accidental short circuits.