Air Conditioner only blowing through Defrost vents - Ford Mustang Forum
 
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post #1 of 2 (permalink) Old 09-07-2019 Thread Starter
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Air Conditioner only blowing through Defrost vents

My 2001 mustang a/c blows cold, but only through the defroster vents. I’ve been searching for a solution and read it has to do with damaged vacuum tubes. I found a broken tiny tube under the hood and reattached it, but it didn’t fix it and wondering if there’s another area to check.

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post #2 of 2 (permalink) Old 09-08-2019
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Just wondering........

Do you hear the sound of the "vacuum hiss" when the AC mode control is changed from defrost to other settings? IF not this shows there still isn't vacuum making it to the AC mode control module.

Are you sure that:
  • there isn't a break in the small vacuum line else where?
  • There isn't a block in the line? Have you checked to see IF there's vacuum at the AC mode control module



2003 GT Convertible (sold & missed)
2000 GT coupe (Craigslist project. Fixed. Now my DD). Windsor to Romeo swap.
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