s-10 high oil pressure - Engine Troubleshooting


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s-10 high oil pressure

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farm kid
User

Feb 3, 2013, 2:17 PM

Post #1 of 5 (2093 views)

s-10 high oil pressure	Sign In

I have a 1996 Chevy S-10, 4.3 v-6, automatic and a 4-wd. It has started blowing the oil filter off itself. I have removed the cooler lines and checked for obstructions (none), checked cooler itself with low pressure compressed air(ok), removed and cleaned the remote filter housing and adapter from engine. I also tried different brand filter with same result. Upon start-up the oil pressure gauge sweeps to past 80 psi then pop goes the filter gasket. Any ideas will be appreciated and thank you.

Hammer Time
Ultimate Carjunky / Moderator
Hammer Time profile image

Feb 3, 2013, 2:49 PM

Post #2 of 5 (2072 views)

Re: s-10 high oil pressure	Sign In

I would guess bad check valve in the oil pump.

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We offer help in answering questions, clarifying things or giving advice but we are not a substitute for an on-site inspection by a professional.

re-tired
Veteran / Moderator
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Feb 4, 2013, 7:33 PM

Post #3 of 5 (2023 views)

Re: s-10 high oil pressure	Sign In

I concur with your diagnosis DR Hammer.

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farm kid
User

Feb 10, 2013, 2:00 PM

Post #4 of 5 (1972 views)

Re: s-10 high oil pressure	Sign In

ordered a pump and screen, going to try to pull it apart this week and will let you know, thanks.

farm kid
User

Mar 3, 2013, 10:22 PM

Post #5 of 5 (1883 views)

Re: s-10 high oil pressure	Sign In

Finally got it pulled apart, replaced oil pump and screen, oil pressure ok for now. Thanks for the input and advise.

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