Hey all, need to see if anyone has had a similar or the same issue. For reference I have a ‘93 ford f250 XLT with a 5.8L.
My A/C and heat will only blow through the defrost vent, and none of the others. It’ll blow as hard as it always has on any of its 4 settings.
I replaced the belt and air filter with the last oil change about 300 miles ago. I also fixed a charging system issue so I kind of doubt its an issue with those, but could it be a switch or relay issue at the board?
If anyone has ideas or diagrams and any other references that woumd be greatly appreciated.