1987 Chevy Blazer Oil Pressure gauge stuck on 80

Tiny
DSGRUBB
  • MEMBER
  • 1987 CHEVROLET BLAZER
  • 6 CYL
  • 2WD
  • AUTOMATIC
  • 51,910 MILES
Yes my oil pressure gauge reads 80 all the time is this a bad ggauge or is it the oil pump?
Saturday, June 28th, 2008 AT 2:24 PM

1 Reply

Tiny
RASMATAZ
  • MECHANIC
  • 75,992 POSTS
Could be the oil pump pressure relief valve not opening. Check the oil pressure with a mechanical gauge if normal -replace the oil pressure switch-if not engine bearings/oil pump etc-
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Saturday, June 28th, 2008 AT 3:02 PM

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