Question about 2001 GMC Sonoma Extended Cab

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I HAVE A 2001 GMC SONOMA WITH 2.2L, AND IT HAS A PROBLEM WITH THE A/C NO COOLING, I TOOK IT TO A SHOP AND THEY REPLACE THE ORIFICE TUBE AND RECHARGE 30OZ OF R-134A, DURING ROAD TEST COOLIG WAS GREAT BUT NOW IT IS NOT COOLING AT ALL, I TOOKE TO ANOTHER SHOP AND THEY SAY THERE IS NO LEAK, SO THEY SUSPECT FAULTY COMPRESSOR PRESSURES ARE LOW 85PSI HIGH 85PSI PLEASE ANY ADVISE

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The HI side should be well into the 200 range.
My only question is why your here,when two shops seem to be on their A game.
Does the compressor pull down and cycle off,when watching the low side? Or just run all the time.
Did they jump the switch,to force it to run?
If the compressor failed,lets hope it didn't trash the system.
I always flush everything regardless.
Most likely the compressor went in some fashion.

Posted on May 05, 2010

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Posted on Jan 02, 2017

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