Strange gas leak

[keith88]

 Yesterday I had the back of my charger up in the air so i could get to the underneath it better to paint the rear end  and clean and re undercoat it.  I noticed a drip coming from what look like where the filer pipe goes though the trunk floor to the tank,i wiped it off and seemed to be OK. Today I was back at it again and started to see it drip again but looked to be seeping from inside the trunk  though the sealant around the fill pipe ,so i opened the trunk and i had quite the puddle of gas just in front of where the pipe goes though the floor any one had it leak before in that spot still not sure where it is coming from and it stops if the car is level.

[70 sublime]

Do you have the small vent pipe on your fill pipe that goes down through the floor also  ?

[keith88]

Yes I put it in myself out the bottom of the floor this spring it was just venting in to the trunk before but its not wet at all around that it is where the pipe seals around and though the floor to the tank when the back is jack up at least 4-8" only.

[moparnation74]

Did you overfill it? Some gas can seep from the rubber hose to vent line and ran down the filler tube.

Or leaking from one of the welded metal tabs that hold the vent line?

[keith88]

Its not over full ..I did fill it but went to a cruise about 15 miles round trip before i parked it for the winter .That being said you can smell gas for a short time after i put gas in it but you cant see it anywhere like i saw today. And its fine when its sitting on all 4.

[Patronus]

Are you sure it's gas? (Sorry, just had to ask the obvious)

[keith88]

Yes ..mater of fact I used the gas soaked rag that i cleaned it up with for clean up with after i undercoated and painted the rearend.

[moparnation74]

Sounds like when jacked up on a full tank, the gas moves forward and up the tube a bit.  Then it could be leaking around the clamp for the vent line or a pinhole.  I would test it to see.

[keith88]

Well i know it wasn't coming from the vent hole ,that was the 1st thing i looked at but it could be a pin hole i suppose although i cant see it seeping. How would i test that? And it dose appear that the sealant around the filler pipe as it goes though the floor is loose on the back side.

[squeakfinder]

   If it turns out to be a pin hole in the filler tube itself they are available new. There is a thread on it. Had to replace mine but it was leaking closer to the tank.