2013 Cascadia Isx15 small fuel leak

Discussion in 'Heavy Duty Diesel Truck Mechanics Forum' started by coaxlefitting, Dec 15, 2018.

  1. coaxlefitting

    coaxlefitting Bobtail Member

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    Dec 31, 2017
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    Cascadia 2013 with isx15, ecm wire harness cover with fuel and some going to starter. I think is coming from one of this two fuel sensors. Picture is from my buddy's pro star same engine. Anyone knows the name or part number. Do they need to be replace or just change o ring. Thanks in advance.
     

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  3. Goodysnap

    Goodysnap Road Train Member

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    Jul 12, 2017
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    Most commonly you have fuel rail pressure sensor leaking fuel inside the connector and wicking through the wires all the way to the ecm. There are other fuel sensors in the system. Unplug the sensor to verify the leak and the sensor will need to be replaced at a minimum depending on the severity of the leak.
     
    pushbroom Thanks this.
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