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What causes low oil pressure in a 1989 corvette?
December 25, 2008 9:54PM
Low oil pressure can be due to many problems. A bad oil pump is first guess. A bad oil pressure sending unit could also be one. The engine oil level is below operating levels. Bad cam bearings could also affect oil pressure levels. The oil pump only provides the oil supply. The main, rod and cam bearings provide the pressure as the oil is squeezed past them.