I took mines to three places, two independent mechanics and a Ford dealer. Two independent mechanics who both did a diagnostic and said it was my computer (i.e. Powertrain Control Module) that needed to be updated, one even kept it over night to pin point the issue. Because they had no luck seeking out the source of this issue. So they said that there was no issue, and I was like okay why don't I just let it run for a bit. However, just as I was about to take off it started like that again. So I went in and pulled the mechanic out and he ever spotted that "uh huh". Good thing I wasn't charged.

Prior to me taking it to the third mechanic, I took it to the local ford dealer, they did a diagnostic and gave me the run around telling me that my computer is up to date and the problem to them was unknown. Then these assholes guessed that it was the spark plug and coming up with the price. However, this mechanic gave me some possible info on how the computer did need updating and that the computer was the source of all this. Even giving me the fact sheet, from www.motorcroft.com, which says that all Ford Taurus' made after 8/26/2004 (i.e. 2005 to 2007 Taurus') may experience the symptoms I, as well as the rest of you probably have. Well after receiving new info, I called Ford again and was like their work was inaccurate. I remember the first time I was told that b/c it is a 2006 I didn't need the update, then they were telling me some other mess about the codes I have in the diagnostic were not accurate with theirs. Basically making every excuse they could about not fixing the computer......

I grew very angry and asked him to speak with his supervisor at first he did not comply, then i asked again and he gave me a number of someone who isn't present.

I'ma keep in his ass b/c I not only want the problem fixed, but I deserve to get my money back. I am working on a low salary and have to make payments. But this is the last time I ever purchase any sh*t from Ford, EVER. Anyone else who sees this, please take this to heart when you do car shopping....

God Bless

Its a pain in the ass because it just shouldn't do that! Dealership gives me the run around saying I should replace the fuel filter, and air filter. And If I do make sure I use the Ford Motorcraft brand because aftermarket can cause problems too. (Whatever, I'm not dumb.) Dealership asks me to leave the car overnight, supposed to be 10 degrees that night, so they can hear how it stalls. (Are they really that DUMB?) Have they never heard a car stall before??? Ok so I leave it overnight which is a pain in the ass too. It sat 12 + hours there in the same spot. The next morning they say it "fired right off" for them. They said they reprogrammed the computer or something and that must of fixed it. Then they try charging me for that which is another story but to make it short I didn't pay them a dime for that. Next morning is just as cold, I go to start it, and it runs for a few seconds and stalls. Damnit!

Update from Jun 6, 2009: I replaced the idle air control valve myself. It is extremely easy to fix yourself even if you have no mechanical skills whatsoever. (So don't pay your dealer to do it.) The car fires right off now, even when the regular air temp was -20. I would have liked to take the old IAC valve and throw it at the service guys face and tell him that was for wasting my time with his bullshit about the computer and sh*t. I would bet he knew that was the problem. I would like to say thanks to the person on here that e-mailed me and suggested the IAC valve was bad. You were right!