2003 Chevy Blazer oil pressure

2003 CHEVROLET BLAZER
63,355 MILES • 6 CYL • 4WD • AUTOMATIC
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DRJOSIE
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  • 1 POST
the oil pressure seems to fluxuate. when i first got the truck the oil pressure gauge would be at 40 when i gave it gas it would move just alitle . the other day i was driving the pressure dropped to 22 when i gave it gas it would go up to 40 when i stopped it would drop took to the dealer they said it was the oil pressure switch had it replaceed . its still doing it what do u think it could be
Jun 7, 2010 at 6:14 PM
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RASMATAZ
  • ✓ASE Certified Mechanic
  • 75,992 POSTS
  • ASE Certified Mechanic
Sounds like the oil pump pressure relief valve is sticking try doing an engine flush and see what happens
Jun 7, 2010 at 6:42 PM
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