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2000 Chevy Blazer A/C compressor starts and stops.

Tiny
GORONGORN
  • MEMBER
  • 2000 CHEVROLET BLAZER
  • 6 CYL
  • 4WD
  • AUTOMATIC
  • 135,000 MILES
I recently had to replace a heater core in my 2000 blazer. After reassembling and starting the vehicle, I noticed that the A/C compressor would spin with the serp belt and then abruptly stop every 5 seconds or so before spinning again. The A/C still works fine, but I'd like to know what is causing this. Any suggestions? Thank you for your time.
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Wednesday, October 21st, 2009 AT 6:36 PM

1 Reply

Tiny
CRZYDRVR
  • MEMBER
  • 432 POSTS
This is normal. Your A/C compressor will cycle every several seconds. It's the clutch that will engage and disengage. If it were to stay on at all times the a/c system would freeze up and then be inoperable. In other words this is good news that it even works. I wouldn't be concerened.
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Thursday, October 22nd, 2009 AT 1:42 AM

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