Intrepid175

Used to be, back in the olden days, they used a rheostat to control fan speed. Most of the time it was a set of resistors mounted on a block that controlled the various fan speeds. It wasn't uncommon for that part to fail. I'm sure they're not using anything that crude these days, but whatever it is, I'd have to wonder if that's not where the problem is. Even back then, it was very uncommon to have issues with the blower motor itself or the control switch. Good luck!

CM8112

15GT with a little over 50K miles.Just want to share my experience. Ford is NOT giving financial assistance for the Evaporator core issue once you are out of warranty. Ford knows it is a design problem, but they are not helping with anything. My repair costs $2,100. Likely my unit started to fail months ago, I just found out, when the Freon leaked out completely.
If you own a 2015-2017 Mustang please, please, keep checking you AC Freon pressure in a regular basis. It will be too late if you are out of warranty. If you are in the hole like me, please consider to fill a form with classaction.org

jaks1857

My 2015 Mustang GT is back in the shop today for another new evaporator, this is the second one since I bought the car new. My whole air conditioner has been rebuilt since I bought the car and I feel it necessary to let you know that I live in Houston Texas so it's hot as blazes here in the Summer! When I first started having problems they tried to tell me there was nothing wrong so I told them to get in it and drive around for 30 minutes and see how hot they are when they get back! Now when I tell them there is an AC problem, my guy hears me the first time.

megahertz

Thanks for the info guys.

tribonse

Check out my threads in the 2017 V6 tech section.Same crap!