Fuel tank spits gas back!!!

[Craig Menn]

Anybody else have problems with fuel tank bubbling out while filling. Mine almost always spews back while filling. And it’s only reading 3/4 full. I can trickle fill it to where the tank is actually overflowing, but it still won’t register full. I’ve replaced the canister, and the vent valve.

 

[J Ski]

That would be the backflow valve on the actual gas pump.. defective or worn out nothing wrong with your car

 

[Dennis_H]

I had the same issue recently. It only registered 3/4 full and was to the top and spitting out gas when I thought it needed more. It was the sending unit. It all of a sudden went from being correct to reading about 1/4 tank low. I let it stay like that for a month to see if it would somehow 'heal' itself. Had to put in new fuel pump with sending unit...

 

[jkayca]

What about the line from the tank to the vent valve? Have you replaced this?

 

[Craig Menn]

That would be the backflow valve on the actual gas pump.. defective or worn out nothing wrong with your car

 

[Craig Menn]

No, it happens at all gas stations. So that’s not the problem, thanks for the input though.

 

[Craig Menn]

What about the line from the tank to the vent valve? Have you replaced this?

 

[Craig Menn]

No, I haven’t tried that yet. But good idea.

 

[RenegadeBad_Dog]

It just not thirsty lol but no but in all seriousness I hope you resolve the issue.

 

[rjdelp7]

Try parking at gas pump, with the nose on a downhill. Pump gas a slower rate. Ford sending units do not or are slow to register less than 4 gallons. Run tank down to half before refilling.

 

[Dennis_H]

You have the exact same symptoms as I did. Doesn't matter how slow you fill, what station, what direction, moon phase, etc. At fuel gauge reading 3/4, your toes get wet. I waited a month and used my odometer hoping it would heal. It didn't. It is the sending unit on the fuel pump. Wait till it says it is empty, and then drop tank and replace fuel pump. They aren't cheap.

 

[Triplet Dad]

My 2007 does the same thing. If I am filling up I wait until it's about 3/4 full then I listen for the noise of it coming up the neck. Once I hear that I shut off the pump for a few seconds and let the air bubble out, maybe also shake the vehicle a bit. I fill the rest not using the position lock on the pump and make sure to listen for the noise of the fuel about to come out and it does the trick.

 

[Craig Menn]

Bump