Cat C15 Fuel Problem

Discussion in 'Heavy Duty Diesel Truck Mechanics Forum' started by Brightlog, Jun 12, 2019.

  1. Brightlog

    Brightlog Bobtail Member

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    Also what’s the horsepower on the MBN? I know this is off topic haha.
     
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  3. Muddydog79

    Muddydog79 Heavy Load Member

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    Its all good. I tried the check valve route ONCE. Had to hit it with either to get it started. Now i just fill the filters with atf and it never gives me a problem.
     
  4. Muddydog79

    Muddydog79 Heavy Load Member

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    Mines 475. I THINK lol they came factory 475/550.
     
  5. Cam Roberts

    Cam Roberts Road Train Member

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    forgive my ignorance but explain the atf thing. ive read something about it before but cant remember. Clean injectors?
     
  6. Muddydog79

    Muddydog79 Heavy Load Member

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    Supposedly. I dont ever notice a difference. And for me its easier than putting fresh diesel in them.
     
    Cam Roberts Thanks this.
  7. Cam Roberts

    Cam Roberts Road Train Member

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    im always looking for new ideas
     
  8. Brightlog

    Brightlog Bobtail Member

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    I’m getting mad lol, Ok guys the primary stays filled when I shut off truck. But then shortly after leaving it off for 10 minutes I go to crank it’s still doing it. I checked filter housing all good no cracks. Fuel lines all good. Replaced fuel pump all good on that. Replaced check and return valves all good. Need help!
     
  9. Brightlog

    Brightlog Bobtail Member

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    Like 10 minutes of setting this effer on fire lmao
     
  10. Brightlog

    Brightlog Bobtail Member

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    081634BE-7D9B-4F9C-8B88-4964564A5737.jpeg
    I’m seeing a lot of bubbles when on
     
  11. Brightlog

    Brightlog Bobtail Member

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    Jun 8, 2019
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    I’m seeing a lot of bubbles when on
     

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