I have a 2000 F150 4x4 4.6 automatic, after the engine warms up it will die once I put in gear at idle, or if I'm driving down the road it does fine NO miss, cutting out, loss of power or anything but once I come to a stop it will die, only when engine is at operating temperature.
Engine light does work but is not or has not come on.
I replaced the throttle position sensor but it still does the same thing, I'm about out of ideas. Any would be greatly appreciated, Thanks

 

Sounds like IAC(idle air control) valve stuck. Try lightly tapping on it.If truck idles now,you might try cleaning IAC or just replacing.

 

I am having the same problem with my 1994 F150 4x4, automatic transmission. Please let me know what solves the problem.

 

I agree, I just had to replace my IAC because of the same problem 2 wks ago - had to use both feet to drive or it would die.

Lance

 

I thank you, that seemed to be the problem, I just pulled it off and cleaned it out, worked it, & pecked on it and I hav'nt had another problem out of it.