Question about Chevrolet Tahoe

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I have a 99 chevy tahoe i checked the oil and it is good but when you start driving the oil pressure wants to jump up to 60 and sometimes close to 80 what is the problem.

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Oil pump is getting ready to go out or possibly your gauge is malfunctioning or oil pressure sending unit is bad you could go to a auto parts store and buy another one and mount it under dash.

Posted on Jan 04, 2011

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Sounds like your oil pressure switch is gummed up. East fix, pull oil sending unit and spray brake cleaner into sender and shake few times, dry it out and reinstall. That should take care of it. If it continues just replace sender.

Posted on Jan 04, 2011

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Within reason, high oil pressure is a good thing, and if this happens when the engine is cold, it is normal. If it occurs when warm, you might want to consider using a thinner oil than what you have been using. If this is happening when cold,l try not to 'flog' it until it warms up because this can blow seals (rear main comes to mind) and gaskets.

Posted on Jan 04, 2011

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I think your relief spring for the oil pressure is stuck. This is rare so there might be sludge in the sending unit close to where you put the oil filter on. You may need to take off the unit and explore but you have to drain the system first.

Posted on Jan 04, 2011

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