2000 Chevy Blazer A/C compressor starts and stops.

2000 CHEVROLET BLAZER
135,000 MILES • 6 CYL • 4WD • AUTOMATIC
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GORONGORN
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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.
Oct 21, 2009 at 6:36 PM
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CRZYDRVR
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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.
Oct 22, 2009 at 1:42 AM