OK, I've seen umpteen million posts about this but there are WAY too many to read through them all, so here's another: 2001 Windstar, 3.8. Sometimes stalling when putting into gear. No trouble codes, no CEL. I've seen references to the IAC sensor, I thought I knew all these three letter acronyms, but IAC has me stumped....what is the IAC, where is it, and is that a good place to start?

I can now answer one of my own questions: IAC (Idle Air Control) OK, now where is it, what does it look like. I carefully "assume" it is in the air cleaner housing or duct going to the intake???

I can now answer one of my own questions: IAC (Idle Air Control) OK, now where is it, what does it look like. I carefully "assume" it is in the air cleaner housing or duct going to the intake???

Yes it is really a good start for this issue. Look at that link for all the information on the IAC. http://leckemby.net/windstar/windstar02.html