i am sure someone can tell me the name of this.
thanks

 

That looks like what's called the Intake Manifold Runner Control on some other Fords, or Secondary Intake Manifold Control.

Does your truck still have the underhood vacuum diagram label? If so, it should be identified on that. Which year and engine is this from?

-Rod

 

label is not there
it is a 97 with 4.0 V6
thanks

 

Looks like it's the 4.0L SOHC engine. Per the factory service manual, that's called the "intake manifold tuning valve (IMTV)."

-Rod

 

now, i have to find the part # of this
thanks