Mechanics

AC COMPRESSOR WON'T SHUT OFF ('99 )

1999 Chevrolet Blazer

I have a problem with my AC system in which the compressor runs constantly while the engine is running. I can turn off the AC button on the climate control panel, but the compressor still runs. I checked the clutch and it's not stuck. I removed the compressor relay and the compressor stopped running, but when I replaced the relay with a different one it again runs constantly. I disconnected the climate control panel completely and the compressor still runs.

Any ideas?

1999 Chevy Blazer
150,000 miles
3.4L V6
Avatar
RogerL
July 15, 2007.




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