Excessive oil pressure m925a1

[ROCKWELL-C60]

Recently took my truck out of hibernation and my oil pressure reads 80 at idle 95 at speed. Everything seems fine and I don't remember what it ran at b4 but I'd think I'd Remember something like this. I haven't changed the oil yet but will soon. Any ideas, do these guages mess up like this

 

[98G]

Doesn't sound unusual to me. Fairly typical of NH250s. I've had several.

 

[ROCKWELL-C60]

Thanks l was kinda worried

 

[Swamp Donkey]

If still using the original electric gauges, a weak ground will cause a high reading due to higher resistance. Very common problem with the way they grounded the gauges to the panel, and the panel to the dash. A ground wire directly from the mounting stud on the gauge, going directly to the dash, will fix future ground issues. Same thing for the temp and fuels gauges. I did all mine several years ago and while accuracy might be debateable, at least they're consistent now. Consistency is about the only thing I ask of them, lol

My truck runs around 80 psi cold and around 50 psi when warmed up at idle, with full throttle being around 65-70 psi. As 98G said, your pressures don't seem unreasonable.

 

[ROCKWELL-C60]

That might explain why fuel gauge don't work either

 

[Slate]

What is a normal idle oil pressure on the A2 with the Cummins 8.3?

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[98G]

What is a normal idle oil pressure on the A2 with the Cummins 8.3?

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IIRC, spec is 8psi at hot idle. Typically you'll see more like 30psi.

What does your oil pressure gauge read

I have the 8.3 cummins turbo and at idle it sits around 20 and when driving it's about 50. Is that a normal range? thanks goobs

www.steelsoldiers.com

 

[Jbulach]

Yep, I see about 30 at idle and 65 at 2100.