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Low oil pressure is an indication of worn bearings, broken oil pressure relief valve or a worn or damaged oil pump. Since the oil pressure relief valve usually doesn't go bad and oil pumps usually hold together quite well, it's probably a problem with worn main/rod bearings. If the vehicle has run without an oil change as scheduled on a couple occasions, the bearings probably have too much clearance. If that's the case you might be able to change to a higher viscosity oil and squeeze a few more miles from the engine, but you'll be needing an engine rebuild soon.

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โˆ™ 2006-04-10 13:58:30
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Q: In my 93 grand am there's no oil pressure and after awhile the check gauges and oil light comes on but just gave it an oil change and has plenty of oil what's wrong?
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