Question about 2003 Hummer H2

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2003 h2 hummer low pressure on gauge less then 40 can u help runs good and has plenty of power just low oil pressure. also chage the oil senser but nothing

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These vehicles have been known to have failure of servo motors that drive your guages and routinely read wrong is this your only guage issue I just replaced three of these servos on a freinds H2 the motors are about $2 on ebay

Posted on Feb 19, 2010

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I have a 2005 Hummer H2 and it will not hold oil pressure until we change the filter. We change the filter and it goes up to 40 and stays good for about a week then drops back down and we have to repeat...

Cut the filter in half and see what is happening with it. Is it clogged up? is it blown out? Also replace the oil sending unit, it could be bad.

Oct 30, 2014 | 2005 Hummer H2

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Your oil is low or you have a bad oil pressure switch / sensor

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your oil pressure sensor is not the problem. the motor that runs the gauge has failed. a replacement gauge cluster is the solution

Nov 06, 2011 | 2003 Hummer H2

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because when the engine is shut off, the oil pump is also shut off, therefore no oil pressure. no problem here!

Mar 24, 2010 | 2003 Hummer H2

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After an oil change my hummer looses oil pressure and I have to turn the truck off. After it sits for a minute the restart pressure comes up. I have to repeat this several times in order to drive.

did you check the oil pump stream? dirty or low **** oil in the bottom oil pan. check the oil pressure with the oil pressure tool meter and get a trusted values

Feb 05, 2010 | 2003 Hummer H2

1 Answer

My oil presure senor when i start my truck (h2 Hummer) is starting to move to the right when i pressed the gas in my truck instead of staying in the middle. Does anyone know what could cause that to...

the more you give it gas the more oil pressure your engine generates so yes the gauge should go to the right indicating more pressure.especially now with new and clean oil.normal nothing to worry about.hope this helps you.

Feb 01, 2010 | 2003 Hummer H2

1 Answer

Oil Sensor light keeps coming on 2003 H2 Hummer

There is a sensor located on the oil pan. If the plug-in to this sensor comes loose it or if the sensor fails, it will send the low oil signal. You are wise to check the oil to confirm it is not low.

Jul 05, 2009 | 2006 Hummer H3

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First thing that i would reccomend is switching to 5w30 oil since this is what GM wants you to run in your hummer. Next i assume your gauge is pegged out and doesn't fluctuate. You are going to have to take your hummer down to the local dealer and have a computer hooked up to see if the gauge is bad or the oil pressure sender is bad, more than likely the sender. thanks for using fixya !! have a nice day

Mar 15, 2009 | 2006 Hummer H2

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