1996 Chevy Suburban Oil Pressure too high

IMACHEVY

MEMBER
1996 CHEVROLET SUBURBAN

Engine Mechanical problem
1996 Chevy Suburban V8 Four Wheel Drive Automatic

Drove vehicle, ran fine. Went to start again, oil spraying from under car. Checked filter. Loose. Changed oil and replaced filter. Started the car and it blew the O-ring out of the filter, spraying oil everywhere. When starting, the gauge goes to about 65-70lbs. Why would a suburban have so much oil pressure as to blow the O-ring out of the filter?

5 Replies

RASMATAZ

MECHANIC
75,992 POSTS

Check the oil pump pressure relief valve its sticking closed not opening

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Sunday, January 31st, 2010 AT 11:58 AM

IMACHEVY

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5 POSTS

Thanks for the quick reply. The relieif valve is still in the pump correct? Or have they relocated them remotely on newer vehicles?

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Sunday, January 31st, 2010 AT 12:08 PM

RASMATAZ

MECHANIC
75,992 POSTS

The OPRV is within the oil pump

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Sunday, January 31st, 2010 AT 12:45 PM

IMACHEVY

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5 POSTS

Thank you very much! Very helpful!

Now I know I will be pulling an engine this week.

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Sunday, January 31st, 2010 AT 12:52 PM

IMACHEVY

MEMBER
5 POSTS

Hello,
Does anyone know if you can pull the distributor and remove the motor mount bolts, and lift the engine up to the tunnel to pull the pan off of a 350 in a 4wd suburban? I would much rather do this than pull the engine.

If it were a 2wd it wouldn't be a problem. But the front axle is in the way.