046oh
New member
I have an 04 6.0 that's stuck on defrost but my 4wd works thought it was my wheel bearings because when I switched to 4wd it would kick it back to any of the vents I would select and switch back to defrost in 2wd, I replaced my wheel bearings my 4wd works but now when I put it in 4wd it stays stuck on defrost. I'm going to try putting in a new Pulse Vacuum tonight, but would like to hear any other thoughts on what it could be.