Ghostrider7272

I have a 08 an my fan speed switch only works in 3 of the 4 positions think it would be the switch or something else?

rfinger

Mine does the same thing. Ill be watching to see if there is an answer to this.

techrep

iTrader: (1)

pull the switch and check voltage on it..

gone postal

^ What he said.

If everything is Okay at the switch, get a resistor pack and change it, that should cure the issue if it isn't the switch.

Ghostrider7272

Ok cool I'm kinda figuring it would be the switch but who knows I'll let ya know when I check it out tomorrow thanks for the help!

jetpuck73

This should fix it - http://www.f150online.com/forums/art...emtc-hvac.html

Thisguyuknow

This is a common problem. It is the resistor for the blower, located behind the glove box

Ghostrider7272

Thanks jetpuck now I know what and where to look as well gonna try and tackle it out tomorrow looks really simple. I knew it wasn't my blower cus that works fine and at first I thought maybe the switch would be bad but iv never seen that switch go bad.

Am3gross

Here is a youtube video, I just did this over the weekend, part from advanceauto was 24 bucks, really simple to change

igorknowsall

This is a common problem. It is the resistor for the blower, located behind the glove box. I found mine on eBayfor 22 dollars. Took 15 minutes to change and now all my fan speeds work.