Jump to content

Oil pressure


Recommended Posts

2014 5.3 just did an oil change and noticed the oil pressure pegs out at 80psi at WOT. The pressure immediatly drops back to 40psi when i back off the pedal. It stays around 40psi at idle/normal driving. I havent noticed this since ive owned the truck, surely 80psi isnt normal or even good for the truck, right?

Link to comment
Share on other sites

It will also do a self test of the 2 pressure system after a cold soak.

 

From the techlink article:

 

 

"Instrument Cluster Oil Pressure Gauge

The oil pressure gauge needle oscillation is due to the two-stage oil pump self test. The ECM will perform a functionality test of the two stage oil pump after a cold soak, when the engine is first started and the vehicle is driven.
This functionality test will occur three times in a short time span and can be observed on the oil pressure gauge as a brief increase (spike) in the oil pressure gauge needle. Upon completion of the three tests, the self test will not occur again until after the engine is turned OFF and another cold soak has completed.
TIP: The exception to this self test occurs if the vehicle has come to a stop BEFORE the three tests have been completed. If that occurs, the self test will run again until the test can complete.
Additionally, at 3,500 RPM or greater, the two-stage oil pump switches over to high stage and the oil pressure gauge needle will move to the high position."
Link to comment
Share on other sites

Archived

This topic is now archived and is closed to further replies.



×
×
  • Create New...

Important Information

By using this site, you agree to our Terms of Use.