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Z71 high oil pressure - Silverado Chevrolet Cars & Trucks

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What is the pressure --most likely wiring or sender problem -sender is cheap and easy fix and not hard to replace
How to change an oil sending unit on 2007 2014 Chevrolet GMC Silverado...

Posted on Jul 31, 2016

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Hi,

normally the engine will start cold and have about 60 lbs and as it gets warmer the pressure will start to fall and should idle at about 35 or 40 lbs. you also could have a bad oil pressure sending unit that is giving you a false reading, along with possibly a bad wiring connection or gauge in the dash. first thing is the sender and the connector to check.
dave

Posted on Jul 31, 2016

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Posted on Jan 02, 2017

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SOURCE: oil pressure gauge at 80

your oil sending unit is bad, replace the sending unit and should fix it, the unit shorts out and maxes out the gauge, hope to help you,

Posted on Jul 08, 2009

gh20s
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SOURCE: replaced rear main seals and oil pressure sending on a 2000 z71

Check the oil filter housing and the cooler lines at the housing. The oil filter housing gaskets are good for no more than 15k to 30k miles if your lucky. The lines at the housing are easy to strip out when you reinstall them so take your time if you do it yourself an once you are finished and ready to start the truck, let it run for about 15 minutes and constantly check the area for leaks prior to road testing the vehicle.




Posted on May 12, 2010

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