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Oil pressure drop

(1995 Chevrolet Camaro)
in Richmond, TX on January 14, 2011
oil pressure drops when car is idling after 30 min but small knock in engine
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Popular Answer
on January 21, 2011
Sounds like either the oil pump is worn and not pumping the correct amount of oil or something is plugging up the oil pick up screen. this is most likely due to sludging in the engine. The oil pan needs to be removed for inspection.
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