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Why did my A/C suddenly stop blowing cold air?

Tiny
JENELLEPERE
  • MEMBER
  • 1997 CHEVROLET CAVALIER
  • 18,600 MILES
Last night I was driving, and my a/c was working perfectly, the air was freezing cold. I heard a weird sound, kind of like a squeal, and it stopped blowing cold all of a sudden. I checked the belt, it's fine. The compressor is working, and the clutch is engaging. The fuses and relays are fine. My brother is my usual "backyard" mechanic, and he is baffled, we don't know what to check next. Could it maybe be low on freon? Or is there a different problem that we overlooked?
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Sunday, July 1st, 2012 AT 7:39 PM

3 Replies

Tiny
ASEMASTER6371
  • MECHANIC
  • 52,797 POSTS
Need some gauge readings to determine if the system is functioning.

Could be the compressor. If it was low in freon, the clutch would cycle or not engage

Roy
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Sunday, July 1st, 2012 AT 7:46 PM
Tiny
JENELLEPERE
  • MEMBER
  • 6 POSTS
We tried to check the psi with a gauge, but it didn't do anything. The needle didn't jump or move at all. Could that be a sign of a bad compressor?
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Sunday, July 1st, 2012 AT 11:58 PM
Tiny
ASEMASTER6371
  • MECHANIC
  • 52,797 POSTS
No, a sign of no freon

Roy
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Monday, July 2nd, 2012 AT 1:58 AM

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