GMT 800 & Older GM General Discussion 2006 & Older Trucks | General Discussion

High oil pressure?? hmmm

Old Feb 5, 2009 | 09:37 PM
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Default High oil pressure?? hmmm

I have a question for you guys again.... I was driving home today and i noticed that my oil pressure was at 80 so i pulled over turned off my truck and turned it back on psi still at 80. so i checked the oil and it was good the truck runs fine and has no weird noises coming from the engine. Do you guys have any idea what could be causing this? and yes i have searched but all the other oil pressure problems seem to be with low oil pressure
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Old Feb 5, 2009 | 09:40 PM
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Was that cruising? Does it go above 80 if you increase the rpm's?
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Old Feb 5, 2009 | 10:16 PM
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No it just lays there like a dead fish. it does not matter what rpm im @
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Old Feb 5, 2009 | 10:20 PM
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Could be just the gauge that is bad. If you have someway to log the actual pressure sensor(like with EFILive) check it that way.

The gauge on my TBSS is useless.
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Old Feb 5, 2009 | 10:25 PM
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I really hope that's the case. No i don't really have a way to check the gauge. if it's the gauge would i have to buy a whole new instrument panel?
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Old Feb 5, 2009 | 10:41 PM
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gauge or maybe sender unit.
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Old Feb 5, 2009 | 10:42 PM
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whats a sender unit?
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Old Feb 5, 2009 | 10:44 PM
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Originally Posted by blkonblk
whats a sender unit?
pretty self explained. It's a unit that sends the signal to the gauge.
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Old Feb 5, 2009 | 10:48 PM
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true. Where is it located at? and are those easy to replace? can they be replaced or should i just find another way to monitor the oil press.
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Old Feb 6, 2009 | 12:41 AM
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Originally Posted by blkonblk
true. Where is it located at? and are those easy to replace? can they be replaced or should i just find another way to monitor the oil press.
Mine did that, would register 80psi when engine off key on. The sender is located on the top rear of engine block behind intake manifold. Probably need to remove the intake manifold to get to it.
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