rough idle wants to die on 2001 Ford Explorer Sport Trac

idles rough and wants to die at a stop when a/c or heat is on.

Asked by for the 2001 Ford Explorer Sport Trac
1 answer 2 comments
Does it run rough down the road. Could be intake gasket leaks, dirty throttle plates, if a misfire could be tune up.
No it runs great down the road, only has problem when I come to a stop.
More then likely vacuum leaking, spray water with a spray bottle around intake gaskets. Spray good amounts to see if the idle changes for a leak. Clean throttle with some good carb cleaner and remove all black soot inside.