GM Astro/Safari 1985-1996 Repair Guide

Low Oil Pressure

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When the engine presents low oil pressure, replace or repair the following items or systems, as necessary:



Low oil level in the crankcase.
 
Blocked oil pickup screen or tube.
 
Malfunctioning or excessive clearance of the oil pump.
 
Sticking oil pressure relief valve.
 
Very thin engine oil.
 
Worn (loose) main, rod or camshaft bearings.
 

 
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