Oil light

Discussion in 'Heavy Duty Diesel Truck Mechanics Forum' started by Perez700r, Mar 3, 2020.

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  1. Perez700r

    Perez700r Bobtail Member

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    It’s got fresh oil and filters
     
    Perez700r, Mar 6, 2020
    #41
  2. Perez700r

    Perez700r Bobtail Member

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    We change them every 500hrs
     
    Perez700r, Mar 6, 2020
    #42
  3. Perez700r

    Perez700r Bobtail Member

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    This is the oil pressure at 1500rpm from an accurate gauge about 35psi.
     

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    Perez700r, Mar 11, 2020
    #43
  4. spsauerland

    spsauerland Road Train Member

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    And low oil warning light was on @ that pressure.
     
    spsauerland, Mar 11, 2020
    #44
  5. Perez700r

    Perez700r Bobtail Member

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    Yes it was on
     
    Perez700r, Mar 11, 2020
    #45
  6. Perez700r

    Perez700r Bobtail Member

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    I replaced the oil pump and the oil filter housing and everything new that goes into the housing plus new cat oil filter and oil pressure picked up about 15psi but the oil light and buzzer still turned on this morning after about a 15 min drive. Anything else I can change out?
     
    Perez700r, Mar 16, 2020
    #46
  7. spsauerland

    spsauerland Road Train Member

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    How old are rod and main bearings?
     
    spsauerland, Mar 16, 2020
    #47
  8. Perez700r

    Perez700r Bobtail Member

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    Overhauled maybe 200,000 miles ago. Could a bad Iva oil pressure sensor cause this too?
     
    Perez700r, Mar 16, 2020
    #48
  9. spsauerland

    spsauerland Road Train Member

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    Not typically, but a leak in VVA's could. Kinda surprised it isn't throwing low VVA pressure code.
     
    spsauerland, Mar 16, 2020
    #49
    Frieghtliner2007 Thanks this.
  10. Perez700r

    Perez700r Bobtail Member

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    So a leak in one of the vva solenoids could be causing it? Any way to check them?
     
    Perez700r, Mar 16, 2020
    #50
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