1996 Buick Regal squeaking

1996 BUICK REGAL
120,000 MILES • 6 CYL • 2WD • AUTOMATIC
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GOTITESPN
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When I turn the AC on I will get a periodic loud squealing. The squealing goes away when I turn the AC off. Not sure if its the AC clutch or belt. I guess I could buy a belt (cheaper) and try that first, but is there any good way to determine which is causing the problem?

Thanks
Aug 12, 2009 at 4:12 PM
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AKANYR
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Is the Oil Presure light in the dashboard on? I had the same problem when I turned on the heater or the a/c. I changed the oil pressure switch & the noise stopped. I think it was because ofthe extra load in the engine & the oil pressaure was low to begin with putting on the a/c jus strained the engine & pump more, making the noise.
Aug 18, 2009 at 5:11 PM