Folks, I have a weird problem on my 2007 F150 super cab, 5.4. When I turn my air selector on, no matter what position, defrost, lower air etc. I get the following symptoms: if parked, the vehicle will NOT come out of park, high beam dash light comes on, both turn signal dash lights come on and turn signals do not work and a/c blower motor is just a trickle. I DO have brake lights.

Turn the air selector to the off position and the dash lights are normal and turn signals work again. I have checked the obvious fuses and looked for loose wires or connections but am stumped. Any ideas?

 

u ever mess with your wires? did u just get your truck?

 

^^ X2 How long have you had your truck, have you done any mods involving wiring? When did these symptoms start?