03 379 6NZ fuel issues...HELP

Discussion in 'Heavy Duty Diesel Truck Mechanics Forum' started by Kray4439, Jul 8, 2019.

  1. Kray4439

    Kray4439 Bobtail Member

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    Dec 10, 2018
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    Yesterday fuel had went to passenger side.. Slam full and running out. It finally equalized. Today I noticed it wasn't building full boost when I went to high gear and sometimes lower gears. I figured fuel filters. Got to my destination, just cracked the water separator. Very little fuel came out then it died on me losing prime. I'm assuming yesterday's equalizing issue prob has something to do with current situation. Any ideas or suggestions while I wait for service truck to come in the morning...
     
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  3. ErieMcDreary

    ErieMcDreary Medium Load Member

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    Always check the cheap simple stuff first.
    Tank vents? Do you hear a woosh of vacuum when removing the cap?
     
    Kray4439 Thanks this.
  4. Kray4439

    Kray4439 Bobtail Member

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    Dec 10, 2018
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    I've got fuel lines coming apart smh.
     
  5. ErieMcDreary

    ErieMcDreary Medium Load Member

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    Dec 4, 2016
    Erie PA
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