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Low,fluctuating oil pressure on 1993 blazer 350cid

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  • Anonymous Sep 27, 2008

    My oil pressure fluctuates around 20 on the gauge only after engine warms up. good oil pressure at start. starts knocking when engine is hot.

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If your vehicle has over 160000 miles on it and the low oil pressure is accompanied by engine noise.Chances are you have bearing clearence problems and or oil pump issues.The oil pan should be lowered for inspection.If there is no noise from the engine,install a manual aftermarket oil pressure gauge to make sure the original oil pressure gauge isnt faulty.Good Luck!!!!

Posted on Aug 04, 2008

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