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Low oil pressure

Discussion in 'Ask An Owner Operator' started by liljim, Sep 9, 2019.

  1. Sep 9, 2019 #1
    liljim

    liljim Bobtail Member

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    I have a 2006 International 9900 with a Cummins isx I just had a head gasket job done 2 weeks ago because I had coolant getting in the oil. The head checked out find and the egr cooler check out good. Today my low oil pressure light and yellow check engine light came on. Oil pressure was 20 going down the way and drop to 18 when I let off pedal. Fresh oil change and new head gasket. Truck is not running hot
     
    liljim, Sep 9, 2019
    liljim, Sep 9, 2019
    #1
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  3. Sep 9, 2019 #2
    xsetra

    xsetra Road Train Member

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    xsetra, Sep 9, 2019
    xsetra, Sep 9, 2019
    #2
  4. Sep 9, 2019 #3
    Ridgeline

    Ridgeline Road Train Member

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    Did you by the way have the oil analysis done?

    You may have bottom end issues.
     
    Ridgeline, Sep 9, 2019
    Ridgeline, Sep 9, 2019
    #3
  5. Sep 9, 2019 #4
    snowwy

    snowwy Road Train Member

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    Could be poor quality oil.

    Maybe time for oil pump and new bearings.

    If sensors don't fix.

    Engines don't like water in oil.
     
    snowwy, Sep 9, 2019
    snowwy, Sep 9, 2019
    #4
  7. Sep 9, 2019 #5
    liljim

    liljim Bobtail Member

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    Thanks guys, I think I will try oil sensor and oil filter first
     
    liljim, Sep 9, 2019
    liljim, Sep 9, 2019
    #5
  8. Sep 9, 2019 #6
    snowwy

    snowwy Road Train Member

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    Get an oil sample.

    Another thing would be blowby test.

    Different motor but I drove a cat with broken piston rings. Needed an oil change every 2 weeks. The blowby was diluting the oil and ruining it. Causing low pressure to the point the lights would come on.
     
    snowwy, Sep 9, 2019
    snowwy, Sep 9, 2019
    #6
    77fib77 Thanks this.
  9. Sep 10, 2019 #7
    liljim

    liljim Bobtail Member

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    Did you drive it while the light was on?
     
    liljim, Sep 10, 2019
    liljim, Sep 10, 2019
    #7
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