I have a 09 FX4 with the sync/nav system about 24k miles. I got in the truck this morning turned it on and the A/C blower was blowing 3/4 speed. I always turn the A/C off when i get out of the truck, so it was wierd. But the blower will not slow down. It will turn up and blow even harder, but won't slow down when pressing the buttons..

Has anyone heard of this? Or has anyone had a similar problem?

Thanks

 

I have an '07 Expedition with 80K miles on it and just started having this same problem. Were you able to fix it yourself?

Thanks

Doug