Where is the intake manifold runner control valve on a 1996 3.8 ford windstar?

The intake manifold runner control valve (IMRC) on a 1996 Ford Windstar 3.8L is located on the intake manifold itself. It's not easily visible without removing some components. It's generally situated near the center of the intake manifold, often close to where the runners merge into the plenum chamber.

You'll likely need to remove some parts like the air cleaner assembly and possibly some other components to get a clear view and access to it. A repair manual specific to your vehicle year and engine will show its precise location with diagrams. The valve itself is usually actuated by a vacuum line.

Because of the difficulty in accessing it, it's strongly recommended you consult a repair manual or have a mechanic locate and diagnose the issue rather than trying to locate it blindly. Improperly working on this system can cause further damage.