2005 allegro bus defroster
Last spring I was driving down the road and noticed the drivers side of the window fogging up but the passenger side was doing fine. I put my hand over the vent and did not feel any air coming out. I wiped the window down with a towel and I was only 30 miles from home so I drove the rest of the way home. The next day I try it and now it is working. The next couple of times I tried the defrost on trips it worked fine. The last time I drove it the drivers side quit working again. I realize there is a door that is moved by vacuum that controls that. I am not sure how to get to the door and vacuum line. Do you have to take the top of the dash off and if so how do you get to it ?
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