Air only blows out of Defrost? Help
I have an 2003 f150 FX4 with 79k here at my dealership, and i am having an issue with my Air just blowing out of the defrost.
I already checked the vacuum lines and i cant find anything broken, but when i take a tube off it has a loud hissing sound and good suction.
Now i did find a Black vacuum line that is connected to nothing and i cant seem to find where its supposed to go. Its in a group of 2 other vacuum lines that are connected. These lines are located to the right of the battery down resting right above the passenger tire. Is that black line supposed to be connected to anything?
I don't know a whole lot on the vacuum system. Please tell me what i should do.
All your help is greatly appreciated!