Where is idle air control valve on 99 dodge durango 5.2l engine?

On a 1999 Dodge Durango with the 5.2L engine (a Magnum), the Idle Air Control (IAC) valve is typically located on the throttle body. It's a small, usually cylindrical, valve mounted directly to the throttle body itself. You'll find the throttle body on the intake manifold, near the air filter housing.

Because of slight variations in placement based on specific engine configurations, the best way to locate it definitively is to:

1. Consult a repair manual: A Haynes or Chilton manual specific to your 1999 Dodge Durango 5.2L will have a diagram showing the exact location of the IAC valve. This is the most reliable method.

2. Use an online parts diagram: Many auto parts websites (like AutoZone, Advance Auto Parts, etc.) allow you to look up parts diagrams for your specific vehicle. Search for your Durango, year, and engine, and find a diagram of the intake manifold. The IAC valve should be clearly labeled.

Remember to be careful when working near the throttle body and intake manifold. Disconnect the negative battery terminal before doing any work to prevent electrical shorts.