Thanks for the feedback, I've forwarded this information to my dealer for their thoughts. Can you describe in more detail what the symptoms or behavior was? Was there an associated fault code that helped your dealer diagnose the issue?
Another thing I experienced in this morning's -12 degree F weather as I neared the end of my 20 minute drive to work, with the HVAC in Auto/84/max fan, was the air coming out of the vents went from fairly nice warming air temps to downright cold air temps. This lasted about a minute or so, and right after I parked at work the temperature then went back to warm air. I don't understand why this occurs from time to time, and makes me wonder if the same sensor isn't going bad and causing this.
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Originally Posted by capnmorganxx
Have the dealer check it out. My '12 F25 was doing the same thing and it turned out a sensor was bad that controls how much outside air gets into the car. Mine was blowing freezing wisconsin air in with the warm heater air at the same time.
It would eventually heat up, but that 70 degree air was NOT 70 degrees...
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