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Chevy oil pressure gauge stuck at 550 - Cars & Trucks

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6 Suggested Answers

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  • 2 Answers

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Posted on Jan 02, 2017

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SOURCE: changed oil pressure switch,still no oil pressure

The fuel pump on that model runs through the oil pressure switch so that if the truck looses oil pressure,It kills power to the fuel pump to prevent engine damage.you need to find the cause of the low oil pressure reading(possibly a bad oil switch).That would be the cheapest place to start,or have it checked with a mechanical gauge.Good luck,
ChevRev

Posted on Mar 30, 2009

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SOURCE: oil pressure gauge stays at top, about 80 psi, is this normal

80 is on the high side for those... possibly a sending unit issue

Posted on Apr 19, 2009

  • 16 Answers

SOURCE: When driving my oil pressure gauge and tachometer does not work

if its not a fuse check the speed sensor for the tach, and the oil pressure switch on the side of the engine block see if the lead came loose

Posted on May 08, 2009

  • 5 Answers

SOURCE: oil pressure gauge reads 80 while running

could be one of two things, oil pressure switch (located on top of engine behind intake) or instrument panel cluster, if your vehicle has under 70,000 miles, it's covered under warrenty

Posted on Jun 19, 2009

  • 22 Answers

SOURCE: I own a 2005 Chevy Trailblazer. My oil pressure

could be the oil pump in the motor.

Posted on May 29, 2010

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Is there a oil safety switch on 2002 Chevy s10 zr2


You have a oil pressure switch which is located by the oil filter,it is screwed into block,just removed electrical connector,get wrench and remove.
  • When the oil pressure is either high or low it will either turn the oil light "on" in the dash or move the gauge to the extremes
  • Undetected high or low oil pressure can result in internal engine damage and/or gasket leakage. Here's a picture of what it look's like.
http://www.autozone.com/external-engine/oil-pressure-switch/duralast-oil-pressure-switch/chevrolet/s10-p-u-2wd/2002/6-cylinders-w-4-3l-sfi/31135_652060_8450

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Usually two reasons why oil pressure drops over time,worn engine parts,old oil.Try an oil change with new filter I sometimes use an additive like Restore.Over time the oil will become thinner and less viscous leading to a drop in oil pressure.

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I just recently had the same problem with my 06 Tahoe .. I replaced the oil sending
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What should i do if my oil pressure gauge goes up as high as 80 when pressing the gas and when idol its at 40.. Chevy Trailblazer 4.2 2005


This sounds about normal, possibly a little high, you could check to make sure there isnt too much fluid! If not, then i wouldnt worry about it!
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The oil pressure gauge on my 2003 Avalanche reads "0" and activates low oil pressure warning. Oil level is OK and engine does not sound like one with with no oil pressure; AKA no knocks or ticking. The mileage is 50,000 on this vehicle any ideas as I with no gauge I am leary of driving it? Please advise!

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