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Truck Repair/low oil pressure on N14


Stupid Shit Never Ends wrote at 2010-01-12 23:04:38
I'm dealing with the same problem right now. Have not found any resone for the low oil presure,but it has seemed to fix itself. We went from little or NO presure,to 22psi at warm idel. All we did, was spray W-D40 in the ports to flush them out, reinstall sensers and the oil presure came back.     We installed a new oil pump and pick-up tube, just to make us feel like did somthing. HA HA...

doughboy wrote at 2011-03-18 12:13:58
i did the oil pressure check and the guage is reading the same as the equipment checking the pressure, but this problem didn't occur until i used cenpeko oil in my motor  

jones wrote at 2014-12-07 13:34:36
check your piston oil cooler nozzles they are plastic and can sometimes break. there six of them located along the block on the turbo side of the engine . they are hard to see with one bolt holding each  

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Cliff B.


I am ASE Certified Med/HD Master Tech but only work on Cummins engines. I have worked on them since 1989. I can answer questions about electronic or mechanical problems with heavy duty or mid range Cummins engines.(ISX, ISM, ISB, ISC, L10, M11, N14, 6C, and B series).


I have worked on Cummins engines since 1989.I am ASE certified Master Med & HD Truck Mechanic.

Nashville Auto Diesel College Graduate in 1984.

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