Only able to fit 3 gallons of gas...

[doctordave00]

So I've got a little bit of a weird problem. I can only fit 3 gallons of gas into my fuel tank... I honestly have to say that I don't even know where to start with this, so if you guys have any ideas, post em up!

It's on an 87 5.0.. Lemme know if you need more info


-Dave

[billyNOTnice]

your fuel gauge is broken, your actually full.

[Sonic03snake]

your fuel gauge is broken, your actually full.
Yep, probably needs one of these.

http://www.laurelmountainmustang.com/products/1987-1993-mustang-fuel-level-sending-unit

[doctordave00]

Ha, yea, the gas gauge is indeed broke. But, I don't think that the car would only take 3 gallons of gas solely based on the gas gauge. I've run the car to empty 2 or 3 times now, and the most I can ever fit in the tank is 3 gallons... Oh well, guess I'm just gonna have to rip things apart and see what i can find.

[SAC81]

Crazy....

Drop the tank, remove the fuel pump retainer and have a look in the tank.

[PaceFever79]

I never had this happen to a fox, but our Ford van was doing the same thing,
the vent tube that runs alongside the filler neck was clogged.

Also there was a pressure checkvalve in the filler neck where it meets the tank.

[Sonic03snake]

I never had this happen to a fox, but our Ford van was doing the same thing,
the vent tube that runs alongside the filler neck was clogged.

Also there was a pressure checkvalve in the filler neck where it meets the tank.
Good thinking!! Could be a stuck vent valve on the top of the tank too. Blow the line out 1st.

http://www.laurelmountainmustang.com/products/1980-1997-mustang-fuel-tank-vent-valve-original-ford

[crazylou]

LOL... SMOKE WHAT.... JK... fuel pick up tube rotted off, all the water in ur fuel u buy...

[somethingclever]

definately sounds like a venting problem

[doctordave00]

Turns out it was the vent plus a fuel filter, thanks for the help guys!

[PaceFever79]

Cool

[Mater]

Hows a fuel filter stop it from taking fuel into the tank?