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1999 Saturn Sport Coupe Repair Question


Topics covered: Noise, Radiator, Vents.
Mileage: No information provided.

Asked on July 25, 2010

1999 Saturn Sport Coupe ac cycles

Air Conditioning problem
1999 Saturn Sport Coupe 4 cyl Front Wheel Drive Manual 170000 miles

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???
Avatar Asked by billyireland

Answer

Replied on July 25, 2010

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?

Tiny Answered by saturntech9 (expert)
23,163 answers provided
Replied on July 26, 2010

I checked the pressure and its good, the fan comes on....

Tiny Response from billyireland
1 question asked
Replied on July 26, 2010

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.

Tiny Answered by saturntech9 (expert)
23,163 answers provided

Replied on July 26, 2010

I can only check the low side..... Guess its off to the shop!

Tiny Response from billyireland
1 question asked
Replied on July 26, 2010

Yeah without the high side pressure it's only have the story.Sorry i couldn't tell you more.

Tiny Answered by saturntech9 (expert)
23,163 answers provided
Replied on July 26, 2010

Thanks for your help.

Tiny Response from billyireland
1 question asked