gas coming out around cap

[blsticms1]

when i fill up and go thru turns gas comes out around my cap . ive replaced the cap twice . im not over filling either , i stop when it clicks off . anybody had this happen ?

 

[LarsD]

Yeah, I had this happen before when I accidentally capped the fuel tank vent line thinking it was a vacuum line.

 

[blsticms1]

where is that line at? the only thing ive done to the car is a cold air intake

 

[Mustang5L5]

Runs up to the charcoal canister up fromt. Check the vac lines coming off the canister and make sure they aren't pinched anywhere. One line runs to intake, other line runs along pass inner fender andnthen under the car to the rear.

 

[blsticms1]

would the cold air intake have anything to do with that

 

[jrichker]

would the cold air intake have anything to do with that

No.


Charcoal canister plumbing - one 3/8" tube from the bottom of the upper manifold to the rubber hose. Rubber hose connects to one side of the canister solenoid valve. Other side of the solenoid valve connects to one side of the canister. The other side of the canister connects to a rubber hose that connects to a line that goes all the way back to the gas tank. There is an electrical connector coming from the passenger side injector harness near #1 injector that plugs into the canister solenoid valve. It's purpose is to vent the gas tank. The solenoid valve opens at cruse to provide some extra fuel. The canister is normally mounted on the passenger side frame rail near the smog pump pulley.

It does not weigh but a pound or so and helps richen up the cruse mixture. It draws no HP & keeps the car from smelling like gasoline in a closed garage. So with all these good things and no bad ones, why not hook it up & use it?


The purge valve solenoid connector is a dangling wire that is near the ECT sensor and oil filler on the passenger side rocker cover. The actual solenoid valve is down next to the carbon canister. There is about 12"-16" of wire that runs parallel to the canister vent hose that comes off the bottom side of the upper intake manifold. That hose connects one port of the solenoid valve; the other port connects to the carbon canister.

Purge valve solenoid:

The carbon canister is normally mounted on the passenger side frame rail near the smog pump pulley.
Carbon Canister:

 

[90lxcoupe]

It should also be said that you should fix this problem ASAP, because you have a pressurized gas tank which could be very dangerous and get pretty ugly for you.

 

[Mustang5L5]

would the cold air intake have anything to do with that

Only if you accidentally pinched the line closed during the install

 

[blsticms1]

thanks everybody im going to run the lines tomorrow and see what i find

 

[5.0Droptop]

My vent line got pinched and it caused excessive tank pressure to the point of affecting my fuel pressure..