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Shannon Martin
Shannon Martin, ASE Certified Master Technician
Category: Chevy
Satisfied Customers: 589
Experience:  over 20 years as a line technician both asian and domestic.
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normal oil pressure reading on the dash gauge?..be fluctuating a lot

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What is the normal oil pressure reading on the dash gauge? Mine seems to be fluctuating a lot, and reads from 20-45psi.

Shannon Martin :

hi i am shannon i will help on this issue.

Shannon Martin :

pressure dependes on oil temp, rpm, and engine wear

Shannon Martin :

but normaly its 20 psi at idle riseing to 45 psi at 2500 rpm.

Shannon Martin :

there is a old ruel for oil pressure min its 5 psi per 1000 rpm

Shannon Martin :

if the pressure drops verry low at idle but rises ok with rpm you could have a stuck oil pressure relife valve

Shannon Martin :

you may need to test the pressure with a mechcanal gauge to be sure it not the sender or gauge that is failty

if you have any questions or more info to shear then please use the box below to respond if the info i provided answered your question then please press the ACCEPT button and i will thank you now. shannon
Customer: replied 6 years ago.
Ok. I'll check this. Where is the port for checking with a mech gauge?

you must remove the oil pressure sender i,ll try to get you a picture. be right back

 

 

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Shannon Martin and 5 other Chevy Specialists are ready to help you
if the info i provided answered your question then please press the ACCEPT button i will still answer on this issue. thanks shannon