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A/C KEEPS CUTTING OUT???

paulrv6 on Sat August 02, 2008 9:31 PM User is offline

Year: 96
Make: OLDS
Model: AURORA

I was checking my AC today and added a can of freon. The AC seemed to work good after that. Had 55 psi on low side and 275 psi on high side. Later in the day when it got warmer about 90 F (this morning it was 70) I started the car and tried the AC and it would not blow cold air. The comp took a long toime to kick on and when it did it would only stay on for a very short time. I hooked the gages up and the low side read 125 psi, when the compressor kicked in the low side would drop to about 100 psi and shut off so I was never getting any cold air. Any suggestions?

paul

GM Tech on Sat August 02, 2008 10:01 PM User is offline

what was the high side when a/c cut off?

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The number one A/C diagnostic tool there is- is to know how much refrigerant is in the system- this can only be done by recovering and weighing the refrigerant!!
Just a thought.... 65% of A/C failures in my 3200 car diagnostic database (GM vehicles) are due to loss of refrigerant due to a leak......

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