janeejay

Ok, I took my car in after the AWD warning light came on and the acceleration dropped....the dealership was able to mimic the issue and they found.... (drum roll please....) that it was the throttle body that needed replacement! It stumped my dealership because when they hooked it up to the computer to see if any problems registered, it said that everything was fine and there were no issues. Knowing that it was the throttle body makes sense because I've had issues with accelerating from the get-go and I found that when I filled up with premium gas performance was better. Now after getting the throttle body replaced I find that I no longer have issues with accelerating with regular gas. Crisis averted!

I've had the same thing happen - mine has been happening on rolling stops as I'm making a right turn. Alert light comes on saying that AWD is off and the service wrench appears. My car slows down to nothing and I have to shut off and turn my car back on to get it up and rolling. Once I shut it off and re-start it works....rougher for a bit, but at least I could accelerate. It was idling rough for a bit after. At first my dealership thought it had to do with the shifter (which I needed replaced) but it happened twice after the replacement within the matter of a week. My dealership is in the process of talking to Ford engineers and I'm taking it in on Thursday. My husband thinks it could be the O2 sensor that needs replacement - but I'm not too sure about that. I'm going to bring the TSB 11-5-6 in with me as well and talk to my dealership about the possibility of it as well. I have no idea what to expect - if they can't find an issues (this will be the second time taking my car in about this issue) then I will be requesting the "black box".