Hey folks, first Thanks for the IAC valve suggestions..it worked! Now one that I have been "living" with but now that it's winter and 18 degrees out it seems to be a bigger problem. It started pretty suddenly or I didn't notice is but when I did the Heater / defrost wasn't getting hot or even warm, and the ac wasn't cold but cool. The temp control switch on the dash feels funny like it's stuck in the midrange position. It turns to either direction hot or cold but feels funny. Could this switch simply be the problem? If so how do I remove and replace it. Any help is appreciated.

 

I dont know alot about the F-150 but I think that it as a vacum operated blend door and switch take the switch out and check and see if is cracked or the **** may just need replaced

 

COme to think of it ckeck the **** first

 

WOW it was the ****...I certainly don't live up to my name..I had pulled it several times and didn't look for a crack...moved the switch manually and voila! Now I just need a new **** and my baby is in tip top shape, and I'll stay warm. Thanks this site is awesome!

 

Glad we could help thats what we are all here for. Happy holidays