05 super crew with a 5.4 Here is the problem....it won't let me put gas in. Even at super slow speed on the pump it shuts off or the gas shoots back out. The truck is a builder and yes the box was off. I took all the filler neck and vent stuff off and nothing is bent, pinched or kinked. Any ideas

Gas tank already full?

I'd take a clean hose and make sure it's got a clear shot to the tank.

Sounds to me like the air can't escape from the tank as fast as you're trying to put the fuel in.

I had an eclipse that did the same thing after I replaced the vent line that ran up the side of the filler neck. I thought the hose was large enough but it provided enough restriction that the only speed I could use on the gas pump was the super slow speed.

We see lots of Super Duties from the oil field that have the vent for the gas tank at the charcol canister plugged with mud.

We sell about 2 a month at Napa for Ford's and chevy's. It's the charcoal canister, they plug up over time and need to be serviced, IE replaced. around $125 and your good to go.

try putting some diesel in it

try putting some diesel in it
wtf??

Fawking nob trying to be funny.

We have 05 E350s at the mine (dirt roads only) same thing happens to them. Above the rear diff there is a bunch of solenoids, canisters, hoses etc, and a breather. Disconnect all the hoses you can get ahold of, and with a blowgun clean out everything you can both ways, tap them to break up more dirt. Just don't blow dirt back into the tank.

This is a gas motor so I don't think it is a canister problem. The vent line is steel from the top of the filler neck to just above the tank and it is clear of obstructions. There seems to be a check ball or rollover valve at the tank inlet. Could this be stuck from the crash

Newer Fords vent through the canister even when you are just filling them up nwith fuel. If you look at the vent to the filler neck you will see thats it's very small. If you look at the fuel pump it should have a small and a large fitting on it, the large is the vent and it runs back to the canister. You might want to follow that hose back and make sure it's not blocked or pinched. Hope this helps you out. Although this TSB only applies to gas Super Duty trucks it might give you a idea what to look for. http://www.ford-trucks.com/forums/672761-cant-fill-fuel-tank-very-fast-05-cc-lb.html

Thanks for the replies. I got pissed yesterday and took it to the dealer. I will post what they find

We just had two 08 E-250's in our shop for the same thing. So far can't find anything wrong with either one. Solenoids are fine, canisters are good, I know a lot of the time Ford simply suggests trying a different gas station for that issue. As stupid as it sounds it has actually worked most of the time. :confused:

Edit:
This was their answer to my question:
Matthew, There are not any knowns for this concern on E series. Slow fill concerns are caused by fuel not being able to enter the fuel tank or air not being able to escape. In order to determine the cause of the concern, monitor Fuel Tank Pressure (FTP) while fueling. Normally ftp is 2.6v +/- .3v. While fueling if voltage stays within this range and slow fill concern is present, fuel is not entering the tank and the flow is restricted, check filler neck or flapper valve. If while fueling the FTP voltage rises .7v or higher than the air is not allowed to escape, check evap system (canister vent, charcoal canister, evap lines, tank vent valves, etc).

Here is what Ford said
the rollover valve in the tank went off?????? this may occur even when the vehicle hasn't been rolled (good plan)
what's the fix?? a different tank or remove the valve. they of course will not remove it only replace the tank.
So is it ok to remove the valve. is there an underlying reason for it or is it like the rollover valve in my fuel cell on my crawler???

just a thought but if it's called a rollover valve maybe it's a rollover valve. WTF is complicated about that?

Here is what Ford said
the rollover valve in the tank went off?????? this may occur even when the vehicle hasn't been rolled (good plan)
what's the fix?? a different tank or remove the valve. they of course will not remove it only replace the tank.
So is it ok to remove the valve. is there an underlying reason for it or is it like the rollover valve in my fuel cell on my crawler???

I've never heard of that and I work at a Ford stealership.

I know what it is, what I want to know is if it is tied to some electrical bs or something that will make the truck not funtion if it is not there. It is blocking the fill hole.
They said they ran a pressure test and that is what it shows. Are they just trying to sell me a new tank? Can you check around and verify? thanks

I will ask around and see what I can find out for you and let you know something as soon as I can. I've just never heard of that being the reason to cause your issue.

Sounds like the dealer is full of shit. No reason for a roll over valve on the filler neck.

Do you have the hose to the canisters/valves/solenoids disconnected? If not, disconnect it and try to fuel it.

x2 on the dealer being full of it. I talked to one of my Master Techs here and he has never heard of that happening either. He said the rollover valve wouldn't just rollover. He did however say that the reason they can not take it out is because its a safety issue, either a big fine or jail time for them. He said the only vehicles that they have had that issue with is the Ford 500(the flapper valve). Other then that, like stated I/we/he thinks they are full of it.

thanks for all the input. If the dealer will ever call me back so I can pick it up I will start to check the lines on the canister and such. I didn't even know that stuff existed. with only 16000 city miles is it even possible that they could be clogged?

It could be clogged but if its all city miles and in the city most of the time, I doubt it. When you get it back try a different station. Like I stated before, as crazy as it sounds its worked many of times.

the first time I tried to put gas in I went to 7 different stations! I thought the same thing. I had an old Scout that only liked one station.

I would pull the tank, pull the filler line and look in. If there is a valve then there has to be some way to remove it or modify it to work. Run a snake or another hose through the filler line to ensure it is clear. Otherwise go after the canister as everyone else has stated. No vent then no fill!!

Long story short, lifted the box checked everything. I couldn't see any problems. We had another tank to put in but I decided to try it and now it works fine. I think the box had one of the lines pinched but I couldn't see anything that looked like it was. Another mystery of the world