Question about 2004 Chevrolet Tahoe

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2004 TRAILBLAZER OIL GAUGE MAXING OUT

THE GAUGE MAX'S OUT

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  • Chevrolet Master
  • 3,103 Answers

It may be bad or the sensor is bad.. look at both..

Posted on Dec 25, 2013

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Posted on Jan 02, 2017

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csmock132
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SOURCE: oil pressure gauge is showing max pressure. Figure that sensor is bad???

I agree with you, replace the oil pressure sending unit.

Posted on May 07, 2009

  • 107 Answers

SOURCE: 2004 Trailblazer strong smell of exhaust/rotten eggs in interior

sounds like you have a plugged convertor

Posted on Jul 11, 2009

  • 28 Answers

SOURCE: oil pressure reads 40 lbs on inside dash until it

If car has a lot of miles you might be dealing with worn main bearings in the engine.

Posted on Apr 30, 2010

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2004 chevy trailblazer ext at stop light push gas pedal to go oil pressure get low after 30 feet it goes back to normal


You may have a oil pressure switch going bad or your idle is too low. The idle should be around 600 RPM. The oil pressure displayed on the instrument panel gauge is not an actual reading, it is made up by the computer. You probably should clean the throttle body as well, make sure to clean both front side and rear side thoroughly. Also disconnect the battery while doing the cleaning. This will allow the computer to reset and relearn.

Aug 30, 2011 | 2004 Chevrolet TrailBlazer

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I have been having intermittent problems with my '04 Trailblazer oil pressure gauge. Recently, when I am stopped at a light, or sitting idle, the oil pressure gauge drops to zero. Then, when I get...


It sounds like the oil pressure switch has failed. It is only an on/off switch that trips at about 15 - 17 PSI, the reading displayed on the dash is created by the computer based on the pressure switch being closed and the engine RPM.

Aug 02, 2011 | 2004 Chevrolet TrailBlazer

2 Answers

Gas gauge not working and oil pressure goes to 80 pounds


Pretty common problem with these. Here's a guide to learn how to fix GM instrument clusters yourself, I used it to fix mine and it worked great.How to guide for Trailblazer instrument cluster repair

Sep 15, 2010 | 2004 Chevrolet TrailBlazer

1 Answer

Oil pressure gauge goes to zero and back to normal after turning engine off.no codes or idiot lights or oil loss or burning even sounds fine.pressure loss on gauge after 1hrs. driving


It could possibly be a bad gauge, this is a pretty common issue for Trailblazers to have. Here's a link with more information about these GM gauge problems. Also, where you can purchase replacement parts on Amazon if you want to do the repair yourself.
Trailblazer Speedometer

Feb 15, 2010 | 2004 Chevrolet TrailBlazer

3 Answers

Oil pressure gage non functioning


replace the oil sending unit,it screws in to block and is close to oil filter

Jan 26, 2010 | 2004 Chevrolet TrailBlazer

1 Answer

Oil pressure gauge is showing max pressure. Figure that sensor is bad???


I agree with you, replace the oil pressure sending unit.

May 07, 2009 | 2004 Chevrolet Tahoe

1 Answer

Oil pressure gauge reads past 80


now unless there is a very loud knocking of the motor which would mean that the engine's top end was not getting any oil I would say that your oil guage is sprung and needs replacing. a high pressure rating would indicate a restriction in the oil flow pasdt the sending unit or a plugged oil filter. if the filter were plugged you would know it because your enging would run tight in no time at all. replace the guage itself... please rate this........thanks

Sep 29, 2008 | 2005 Chevrolet Trailblazer Ext

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