Sounds like what I'm going through right now. From what I've learned, its the PCM (powertrain control module). They have to be reprogrammed, or so Ford tells me. Reportedly takes only .2 hours at the dealer. Ford has out 2 TSB's on the problem; one being the PCM, and the other is about the Intermediate Shaft Sensor (oh yeah, that thing). I have seen some others say you can pull some fuses, and that clears the problem from the PCM. Too bad I didnt check here LAST night. Good luck.