no air comes out of the dash vents in my 1999 Buick. Air does come out of the floor vents.
When I turn on the a/c with fan, I have air blowing from the door vents and the
floor vents but nothing coming out of the dash vents. What is wrong?
Turned out to be a mashed line. Apparently, when I had a battery installed (during the Fall when I didn't use the A/C), whoever installed the battery accidentally put the battery on top of the line.
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