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High Oil Pressue


(Wade asks...)

I'm having a problem with high oil pressure in my 1991 Rexhall motorhome. Do you know what could be causing the problem or what I could do to fix it? Thanks for any advice or suggestions you have.


Coleen, the RVing editor replies:

Plugged Oil Journals

I asked my in-house mechanically inclined all around fix-it guy for help answering this one. This was his response, "It could be the oil journals are plugged and starving the engine of oil, which could lead to major engine problems. This isn't something to dink around with. Take it to a good mechanic that you trust."

Bob's a dyed-in-the-wool do-it-yourselfer. He tears apart and fixes all sorts of things, both RV related and otherwise. For him to say that it needs to see a professional mechanic, well, I'd believe him.

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Comments for High Oil Pressue

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Reasons for High Oil Pressure
by: RVwarrior

As a mechanic, I doubt the oil passages are clogged. You'd have to have never changed the oil for an engine to get to that point. My first thought is a wrong oil filter or clogged one. My second guess would be a stuck (closed) pressure relief valve. Either one will give you high oil pressure readings. Does your RV have an oil cooler and a inline thermostat diverter? That could also be something to check out. A faulty gauge or sending unit is also another option. I'd have a shop test the oil pressure off a mechanical hand held gauge, and then go from there. Good luck!

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