Thread: A/C/Heat air blows ONLY from defrost vents and floor

some cars dont have that vac ball. the vac line off the sc runs right into the cab of the car.

if you have a T under the fuse box, you have that ball for sure.

Originally Posted by BillBoost37

You say you tested the vac line coming in. Did it have vacuum?

If no.. then here's the pic of that res, it's the black ball

Yeah, do have vacuum. Went under the dash while the car was running. Pulled that line off and it's sucking..lol

Could that box that line plugs into be bad?

Originally Posted by bandook

Drivers side. Was on my car, imagine its the same on yours. There's a bracket it clips in to. Mine popped out of the bracket and wouldn't move the door. Just clipped it back on, fine since.

Need to check that next. Is that up under the dash?

Originally Posted by ScottyBDoggs

some cars dont have that vac ball. the vac line off the sc runs right into the cab of the car.

if you have a T under the fuse box, you have that ball for sure.

I really don't think I have one, I never noticed it when I did my I/C install..

There is a rubber fitting that connects the two hard plastic lines. One end is the one that comes off the blower, then other is was seem to go down the fender wall by the battery into a wire loom with a bunch of wires that go into the firewall. Which is the same plastic line I disconnected under the dash.