Low oil pressure

Discussion in 'Heavy Duty Diesel Truck Mechanics Forum' started by EZrider07, Nov 3, 2022.

  1. EZrider07

    EZrider07 Bobtail Member

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    Nov 3, 2022
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    2007 kenworth t2000

    Cummins isx 475

    My oil pressure is reading low (20psi) hooked up manual gauge read the same thing.

    I have changed rods and main bearings, oil pan gasket, new oil pressure sensor and connector, new oil filter, new oil pump, bypass valve, oil level is good. No smoking, no heavy blow by.
     
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  3. Smellfunny

    Smellfunny Road Train Member

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    Is that at idle? What is it at 1400 RPM.
     
  4. Joojie4life

    Joojie4life Bobtail Member

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    Oct 24, 2022
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    20psi is fine at idle…
     
    lester Thanks this.
  5. baha

    baha Road Train Member

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    Get a oil analysis done to ck for fuel in the oil, but it sounds like you have good oil pressure with a few thousand miles on it but a bit low for fresh oil change?
     
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