Need help from any DD16 guru's.

Discussion in 'Freightliner Forum' started by Codynidaho, Jun 2, 2017.

  1. Codynidaho

    Codynidaho Light Load Member

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    Apr 8, 2016
    Cheyenne, Wyoming
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    Hey there. I am new to this forum which can usually be a bad thing... I'm here trying to seek help with a problem I cant seem to solve. If you're a DD16 guru, I hope you can help me. Let me tell you what I have going on...

    I have a 2011 frtlner with a DD16 Detroit. It has 378k miles. I've done a full delete to it(egr, Def,dpf, with a 10% power increase).

    The other night, I notice a fuel leak coming from one of the two fuel ports that are located on the top rear part of the common rail. I quickly put it out of service to prevent anything catching fire. Note the truck was running perfectly except for this leak. No engine problems.

    I assumed it was cracked at the fitting but was hard to tell so I began the removal process of the common rail. With just a couple wrenches, I had the rail out in no time. I removed only four electrical connectors. The fuel pressure controller sensor, inlet temperature sensor, and the two plugs for the injectors and Jake brakes.

    Once inspected, I confirmed that there was no way it was cracked and had to be a loose B-nut. I proceeded to clean all the fuel parts I removed very thoroughly and began reinstalling everything. All went back together perfectly with no apparent damage to any parts.

    Once all back together, the truck turns over fine but does not fire up. So a master mechanic and I proceeded to ensure the fuel system was bled all the way up to the injectors. Still, no start. We confirmed it was getting strong fuel pressure too. It very much is. We used starting fluid just before the intake butterfly valve and the results were the truck was running solely in the starting fluid. Once the starting fluid was removed, the truck quickly stopped.

    We then wondered if the ecm somehow went bad. We hooked up the diagnosticlink8 program. We found codes from when I disconnected the four plugs( I forgot to disconnect the battery). We cleared the codes and they never came back on. We continued to pull plugs throughout the engine to see if the ecm would read it. Results were the computer noticed ever error we created.(including the plugs to the injectors to ensure they were getting power)

    In conclusion, the truck turns over but does not start. If anybody has advice or suggestions that I can try or inspect, your help would be greatly appreciated. I've been down for three days and of your an O/O, you know the feeling of downtime. I will check this post periodically during my troubleshooting... Thank you for any help you provide.
     
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  3. RocketyMan

    RocketyMan Medium Load Member

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    Jun 5, 2015
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    I wouldn't use too much ether to try and start your truck.
    Depending on what version of DLink you have, you can view the different templates for the FIS and make sure that fuel is being delivered to the low pressure pump up to the rail. You obviously still have air in the system and need to PRIME PRIME PRIME! Make sure you have your batteries hooked up on a good charger as you are starting and don't crank the engine longer than 20-25 seconds.
     
  4. Animosus

    Animosus Heavy Load Member

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    I've never had luck with a hand primer for anything other than changing fuel filters. We always run about 7 gallons through an ESOC when we do any fuel system repairs.
     
  5. Codynidaho

    Codynidaho Light Load Member

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    Apr 8, 2016
    Cheyenne, Wyoming
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    Thank you for the response. We didn't use to much ether. Only a one time deal to see it's results. We won't be using it again. We were using the most current dlink and since im familiar with the program, I asked him the same thing. He replied saying that it can't be done but only turning it over due to the loss of connection during starting. I've been priming and bleeding for a day and half now... I suppose I'll keep doing it but we cracked injector 1 open for some time to bleed it out. Along with every other injector line that goes into the head.


     
  6. RocketyMan

    RocketyMan Medium Load Member

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    Good point.
    Do you have a DAVCO or any other external fuel filters?
     
    Codynidaho Thanks this.
  7. Codynidaho

    Codynidaho Light Load Member

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    Apr 8, 2016
    Cheyenne, Wyoming
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    ESOC... Is that the electronic pump system that you hook up to the fuel nipple below the main filter? Ill have to ask the mechanic if he has those tools. I dont have them.


     
  8. Codynidaho

    Codynidaho Light Load Member

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    Apr 8, 2016
    Cheyenne, Wyoming
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    I just have the stock three stage fuel filter system. Which I have replaced about 250hrs ago.
     
  9. Codynidaho

    Codynidaho Light Load Member

    87
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    Apr 8, 2016
    Cheyenne, Wyoming
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    I just have the stock three stage fuel filter system. Which I have replaced about 250hrs ago.

     
  10. RocketyMan

    RocketyMan Medium Load Member

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    Jun 5, 2015
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    You might have debris in your pre filter causing the fuel to drain back into tanks. Did you check that? You should see fuel in the checkball stand pipe when you take it apart--otherwise that could be your problem.
    Do you have the service test ports on your fuel filter module?
    Go to your Fuel System Integrity Check template on DLink and report what you find for your pressures.
     
  11. Codynidaho

    Codynidaho Light Load Member

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    Apr 8, 2016
    Cheyenne, Wyoming
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    Could you help me locate this pretty filter and I'll check right away. Also, the location of the checkball.
    But since I'm getting alot of fuel at injector one fuel line tell me that I'm getting fuel and it's flowing properly?

    I believe I have fuel test ports. I can only check once the mechanic comes back. I don't have the dlink myself.

    Thanks for the help.

     
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