1999 Saturn Sport Coupe ac cycles

1999 SATURN SPORT COUPE
170,000 MILES • 4 CYL • FWD • MANUAL
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BILLYIRELAND
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I have a 1999 saturn. The a/c will work when the car is first started for maybe 1 minute and then it stops, hot air blows out of the vents. The compressor will start again within a few minutes and the cold air starts again. The compressor will not run for more than 45 seconds at a time. The compressor is also making a bit of noise, not sure if its more than usual. Could this be from low freon???
Jul 25, 2010 at 11:54 AM
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SATURNTECH9
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A compressor cycling can be from low charge or too high of system pressure from a failed part or blockage in the system.Does your radiator fan come on when you turn on the a/c?
Jul 25, 2010 at 1:12 PM
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BILLYIRELAND
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I checked the pressure and its good, the fan comes on....
Jul 26, 2010 at 8:52 AM
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SATURNTECH9
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What is your low side pressure and your high side pressure i need both for diagnoses.Your low side could be fine but if your high side get's too high your compressor will turn off.
Jul 26, 2010 at 12:16 PM
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BILLYIRELAND
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I can only check the low side..... Guess its off to the shop!
Jul 26, 2010 at 1:53 PM
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SATURNTECH9
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Yeah without the high side pressure it's only have the story.Sorry i couldn't tell you more.
Jul 26, 2010 at 2:00 PM
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BILLYIRELAND
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Thanks for your help.
Jul 26, 2010 at 3:45 PM