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1987 - 1996 F150 & Larger F-Series Trucks 1987 - 1996 Ford F-150, F-250, F-350 and larger pickups - including the 1997 heavy-duty F250/F350+ trucks

a/c vents

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Old May 17, 2003 | 11:53 PM
  #1  
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omni
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a/c vents

On my 1991 f-150. I was using the vent setting on my temp control the other day, and now when I set it to floor or defrost, I still get what seems like out side air coming out of the a/c vents, could a vacuum hose be off? the only thing I did out of the ordinary was swap out my radio, and when I put it back in it was a little struggle, could I have knock off a vac hose? any clues on this one? thanks
 
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Old May 18, 2003 | 11:38 PM
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a/c vents

Yes, you could have unhooked or broken something. But 'floor' & 'defrost' (and everything else except 'Max A/C') normally pull outside air, so that's not a problem.
 
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Old May 19, 2003 | 12:33 AM
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a/c vents

so if I have the defrost on or floor could I get alittle air out of the a/c vents aswell, maybe it was always like that I just picked up on it the other day and thought it was strange, I took my radio back out and all the vacuum lines seem to be in place, I activated the lever for floor to defrost and the little vacuum pots were working,
 
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