Oil pressure gauge maxed out??? - Chevy and GMC Duramax Diesel Forum
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post #1 of 10 (permalink) Old 03-19-2012, 12:56 PM Thread Starter
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Oil pressure gauge maxed out???

My brother has an 03 lb7 and he noticed on his way to work this morning that his oil pressure gauge was all the way burried to the right???

Just trying to help the lil bro out and see if anyone on here has had this happen and if its just the oil pressure sensor or gauge itself.

The gauge stays all the way over even when the truck is turned off.

Any help is appreciated before I go look at it tonight. Thanks!

Last edited by dirty-max; 03-19-2012 at 01:42 PM.
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post #2 of 10 (permalink) Old 03-19-2012, 01:15 PM
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Sounds normal to me if it was within a few minutes of him taking off. My 2002 goes all the way up to 80psi for a few minutes when i first get going and then backs down to 60psi at highway speeds.

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post #3 of 10 (permalink) Old 03-19-2012, 01:39 PM Thread Starter
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The oil pressure gauge is all the way on 120 and stays all the way over even when the truck is turned off. He says when he drives it, it stays all the way over and goes even further at times. It doesnt smell like fuel is in the motor and I dont see signs of coolant in the oil either. I guess its the oil pressure sensor or maybe the actual gauge???? The truck does seem to be using oil though but idk if that would make the oil pressure max out. Just makes me think its the sensor cause it stays over even when the truck is off.
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post #4 of 10 (permalink) Old 03-19-2012, 01:55 PM
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Mine is ed up too..im not to worried about it. I just keep an eye on my levels and drive er like i stole it

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post #5 of 10 (permalink) Old 03-19-2012, 01:58 PM
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My battery voltage gauge is beyond maxed out and the dealership said it was a bad clutch. From what I have read on here it sounds like stepper motors or a bad clutch to me but I don't know a whole lot about this stuff.

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post #6 of 10 (permalink) Old 03-19-2012, 02:03 PM
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My cluster went bad .My speedo didnt read right and oil was way over red line.

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post #7 of 10 (permalink) Old 03-19-2012, 02:57 PM
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My oil pressure does the same thing will bury the needle way past 120 at times or will read at 120 and then a couple days later it will be reading normal then it will go back to reading really high again, like dirty04max said I just keep an eye on my levels an keep driving haven't had any issues yet I figure its the cluster but I called the dealer an a new cluster is about $300, my rpm and speedo will read off sometimes also

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post #8 of 10 (permalink) Old 03-20-2012, 11:38 AM
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when i start my truck up in the morning its pegged at 80 and then after it warms up it goes to 40 at idle then back to 80 while driving

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post #9 of 10 (permalink) Old 03-20-2012, 11:39 AM
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Mine does it too..its just a bad cluster...check your oil the old fashon way and rock on!

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post #10 of 10 (permalink) Old 03-20-2012, 03:25 PM Thread Starter
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Thanks guys seems like a common problem. So if it was the oil pressure sensor would the gauge stay burried, not sure what happens to the gauge when the pressure sensor goes bad??? Would much rather it be the sensor than the cluster but sounds more like a cluster problem with the responses.
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