Oil pressure

citibori · Dec 28, 2012

My truck is idling at about 110 degrees but the oil pressure is at 65 psi and doesn't seem to go down. Isn't it supposed to go down to about 40 if its idling?

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BigCat · Dec 28, 2012

Mine idles at 60 as well. Volvo dealer didn't act like it was a problem.

davekc · Dec 28, 2012

Not sure what kind of truck but 110 is too low. Oil is thicker so the pressure is higher.
Turn off the engine fan or put a piece of cardboard in front of the radiator to make it run warmer.
Like around 180 degrees. Then see if the pressure drops.

citibori · Dec 28, 2012

Thanks guys. By the way it's a Cat C15 in a 379 Pete.

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LDB · Dec 28, 2012

citibori said:
Thanks guys. By the way it's a Cat C15 in a 379 Pete.
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Problem identified but unsolveable.

BobWolf · Dec 29, 2012

I agree with daveck If no other problems are showing. If an increase in the temp dosent change the oil pressure try changing the oil filter especialy if you used a cheap one. Also check the oil pressure and coolant sensor and circuits. If one sensor is off and depending on how much controll the computer has it can cause the engine to compensate.