2000 Chevy Blazer oil pressure guage

2000 CHEVROLET BLAZER
99,000 MILES • 6 CYL • 2WD • AUTOMATIC
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MIKESIMM29
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My oil pressure guage moves back and forth from a very high point to a very low point when the engine is on as if the oil pump is going bad. I change the oil and the oil filter hoping that this would clear it up put it still acts this way. My next best guess is maybe the oil strainer at the bottom of the engine base pan is clogged but hey what do you think
Apr 6, 2009 at 10:47 PM
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BMRFIXIT
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Replacing oil pressure switch would be my 1st move
Apr 7, 2009 at 5:33 PM