Question about 2010 Ford F-350 Super Duty

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Fuel backs up when fueling

I have a 2010 f-350 with a v-10 and a 40gal tank. Recently it started becoming difficult to get fuel into the tank as the filler neck would fill up and shut the fuel nozzle off. I have to keep at the nozzle at all times and it takes about a half hour to fill the tank now. Pulled the tank and made sure i could blow air through the two tank vents and the filler neck and vent tube. Everything looks ok so what else could be the problem? The anti syphon valve moves freely in the tank but could it be jamming somehow when the fuel hits it?

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  • jason gagne Nov 05, 2012

    already disassembled canister and looks ok. solenoid is open and all ports pass air freely. also put air to lines from tank to evap canister and air is felt from all connected tubes.

  • jason gagne Nov 05, 2012

    is it possible there is something wrong with the anti syphon valve or the purge valve?

  • jason gagne Nov 05, 2012

    looks ok

  • Richard M.
    Richard M. Nov 06, 2012

    If the anti syphon look ok and not damanged in anyway...I dont think that the problem. The purge valve does not do anything with tank venting when filling. I would double check all vent lines and filler neck....make sure there are no kinks in any lines and something as small as a spider web in one of the lines can cause a problem like this.

  • jason gagne Nov 06, 2012

    Replaced the vapor canister and valve. Now the truck accepts fuel at full pump output with no issues. On a side note the canister wasn't plugged just dirty and it still caused this issue. Thanks for the help.

  • Richard M.
    Richard M. Nov 06, 2012

    That's great to hear its fixed. Have a good day



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Check the evap fuel canister...make sure its not clogged with dirt or fuel. Check the evap canister vent solenoid- it should be open with the car off.

Posted on Nov 05, 2012


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SOURCE: 2004 Ford Taurus takes 15 min plus to fill fuel tank, help!

theres a problem with the pipe that goes from the gas tank to the gas cap.Look under neath and see if the hose is pinched or bent.Another cause could be who ever owned it before had the tank out and they messed up the hose when they put it back in but that is differently the problem..

Posted on Apr 01, 2009

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SOURCE: Problem with fuel tank filling. Pump nozzle shuts off

get the filler hose checked out as it may have a spring inside it to hold its shape or something has been dropped inside restricting it!

Posted on Jul 20, 2009

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SOURCE: Replacing fuel filler neck on 2000 Crown Vic

Good news, no the tank doesn't have to come down. However, there needs to be less than 3/4 tank. Jack it up and set on a jack stand, remove the wheel, four screws housing to pipe, filler pipe sensing hose from filler pipe, screw retaining the cap, four retaining screws from filler pipe, screw from filler pipe retainer, slide into the tank until it can be rotated and pulled out through the fender. lube the tank grommet with clean oil and reverse the removal for install.

Posted on Aug 21, 2009

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SOURCE: 06 Mustang Gas Tank; Last 2 times I couldn't take

There is a fault with the fuel tanks in the 06 cars (and some 05). It is a well known problem and Ford has issued a service bulletin on the issue.

It also seems to be a problem with the fuel pumps at certain gas stations but not others. Try a couple of different service stations (not the same fuel brand) and see if you have the same shut off problem because some people have found that the pumps at some gas stations do not cause premature shut off when re-fueling their 06 Stangs.

I would contact the nearest Ford dealer service people and see if they will rectify the problem for you FOC even though the vehicle is now out of warranty. In some vehicles the fuel tanks were replaced to fix the problem but not in all apparently.

In the meantime you can try 2 means to resolve the problem that has worked for some (not at the same time).

1. Turn the fuel pump nozzle 45 - 90 degrees when re-fueling and do not run the pump full bore. Slow the fuel flow a little.

2. I would avoid this one and I do not recommend it but it has worked well for some people with your problem. Turn on the car's ignition (not the engine)before you fill the tank . Switch it off immediately you have completed re-fueling.

Posted on Dec 18, 2010

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