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2004 Chevy Avalanche Oil Pressure Gauge Reading High

Tiny
JAZZ90
  • MEMBER
  • 2004 CHEVROLET AVALANCHE
Engine Performance problem
2004 Chevy Avalanche V8 Two Wheel Drive Automatic

The oil pressure gauge started running up to 80 this past weekend. I didn't do anything differently to have caused this. It normally stays at or slightly above 40. I noticed the oil was a little low, so I added some (not much). It's still running close to 80 while on the highway. What could have caused the change and is it dangerous to drive?
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Tuesday, September 7th, 2010 AT 1:25 PM

1 Reply

Tiny
RASMATAZ
  • MECHANIC
  • 75,992 POSTS
Is there any type of engine knocking noises if not. Check the oil pressure with a mechanical gauge, if normal replace the oil pressure switch still abnormal could mean the oil pump pressure relief valve is not opening
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Tuesday, September 7th, 2010 AT 4:51 PM

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