Is this oil pressure normal?

2002 CHEVROLET BLAZER
115,000 MILES • 6 CYL • 4WD • AUTOMATIC
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YELLOW2007
  • MEMBER
  • 1 POST
is my oil pressue suppose to read 40-60
Feb 26, 2008 at 1:21 PM
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SQM
  • Experienced Mechanic
  • 6,383 POSTS
Hello,

Oil pressure of 40-60 PSI is higher than it should be.
This vehicle should have:
6 PSI, minimum at 1,000 RPMs
18 PSI, minimum at 2,000 RPMs
24 PSI, minimum at 4,000 RPMs

Typically high oil pressure is due to a oil pressure relief valve. That valve is part of the oil pump. So you might have to replace the oil pump to get the correct pressure.
The oil pump is located inside the oil pan. You will have to remove the oil pan to access the oil pump.

Here is a helpful article:

https://www.2carpros.com/articles/high-oil-pressure

I have attached the diagrams for your reference.

Please let me know of any questions.

Thank you.
Aug 20, 2021 at 11:45 AM
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