Oil pressure gauge not working properly?

2005 GMC SIERRA
165,000 MILES • 5.3L • V8 • 4WD • AUTOMATIC
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BENCOUPER
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  • 1 POST
Just replaced the oil pressure sensor. Fresh oil change with filter. The gauge in the truck reads just below 20. When driving with RPMs up the gauge will read 40. Also, to note the gauge does not read 0 when the truck is off.
Jul 23, 2023 at 6:51 PM
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STRAILER
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Did you have this problem before the sensor change? If so, the gauge sounds like it is going bad, but I would try a hard system reboot which may make them start working again.

https://www.2carpros.com/articles/step-by-step-guide-performing-a-hard-system-reboot-for-your-vehicles-electronics-systems

and if that doesn't work the cluster will need to be replaced, this video will show you how:

https://youtu.be/_HEC44xENxw

Please go over these guides and get back to us.
Jul 24, 2023 at 1:38 PM
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