Need help guys. Doesn't matter if AC is on or not, nothing comes out of vents unless the dial is on 4 (highest setting). Anyone else experience this? And is it something I can tackle myself instead of paying the dealer?

 

blower motor resistor

 

...or blower motor speed controller if you have auto hvac.


What year?

 

'09. Non-auto.

 

Youtubed "2009 f150 blower motor resistor".....problem diagnosed and showed easy install. Thanks guys very much.