Question about 1992 GMC Sierra C3500

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Oi pressure gauge eratic

Oil presur went from really high to really low when exelarating

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Probably your gauge is not working well. change the guage. if same problem check your oil presure sensor

Posted on Dec 21, 2014

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I suggest installing an af
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Posted on Dec 21, 2014

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Could be a bad gauge, air in the oil line leading to the gauge, if the engine temp was cold enough it could have been an oil filter bypass, in such case this would be normal behavior.

Posted on Oct 24, 2008

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