Gas tank is leaking???

98mstanggt

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Whenever i put gas in my car i always notice that gas be on the outside of my tank(The bottom area of the tank) but its not driping so it gotta be a small leak. IAnybody got any idea where it could be coming from or where to look or what can i do to fix the problem or should i just get another fuel tank. Any advice would help thanks
 

kyle94gt

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Fuel filler neck gasket. That or one of the seams are leaking at the pinch welds
 

duff daddy

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get a match and get under it see if you can see where its coming from



IM KIDDING DO NOT DO THIS LOL !!!!! there are several seals between the fuel filler neck and the tank and where the pump is as well. best to get it on a lift and take a peak BE CAREFUL!!
 

OnyxCobra

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Could be coming from the top seal where the floater goes into the tank, that's where mine leaks from so i can only fill my tank like 3/4, sucks balls.
 
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98mstanggt

98mstanggt

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No its not coming from the filler neck i know cause my other mustang leaked from the filler neck. This leak is coming from somewhere else ima take pics tomorrow so you guys can get a better idea.


OnyxCobra said:
Could be coming from the top seal where the floater goes into the tank, that's where mine leaks from so i can only fill my tank like 3/4, sucks balls.
This sound more like what it could be its like its coming from the top or something.
 

Win

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yeah show us some pics i had a leak in 2 different area's for some reason for mine. I will probably be able to tell yo uwhat you need :)
 

OnyxCobra

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Mine was just dripping down the back side of the tank, i've just been too lazy about dropping the tank again to try to fix it, what a pain in the ass.
 

Win

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OnyxCobra said:
Mine was just dripping down the back side of the tank, i've just been too lazy about dropping the tank again to try to fix it, what a pain in the ass.

Probably the O ring on the Pump or the leveling unit. One of the two
 

OnyxCobra

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i'm guessing it's the leveling unit, it lock ring went on really easy and i didn't even think that it wouldn't seal tight enough. part of the problem of doing things for the first time, you miss obvious stuff. I even ordered a new lock ring from LMR but of course it didn't fit my God damn tank and LMR basically told me tough shit.
 

Win

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OnyxCobra said:
i'm guessing it's the leveling unit, it lock ring went on really easy and i didn't even think that it wouldn't seal tight enough. part of the problem of doing things for the first time, you miss obvious stuff. I even ordered a new lock ring from LMR but of course it didn't fit my God damn tank and LMR basically told me tough ****.

Damn that's shitty... yeah the ring went on easily but did you get it to full seat. I did the same thing except when i was tilting mine to put back in i saw the fuel seeping out so i yanked it back out and re did it. I bet you can get it from the stealership..... Oh just to let you know i don't know if you remember my old thread looking for a wiring harness but it ate mine up the fuel relay wiring harness. So i would drop that take sooner then later to see
 

OnyxCobra

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yeah good point. I don't fill it enough for it to spill out any more though so it shouldn't be getting any worse, at least i hope.
 
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98mstanggt

98mstanggt

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Havent had i chance to jack the car up are anything but here's a few shots i took today while leaving the house. Hope this give a better idea of what it could be coming from.








1249409977.jpg

1249409822.jpg
 

Win

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Put your hand up there and see if you can tell where it is wet. If it is wet in the middle then you have a bad O ring for the Fuel Leveling unit. Although now on a second look it looks to be more soaked from the pump side and looks like it has traveled down. Might be a bad O ring for your fuel pump. There is also a Rubber grommet for the vent that could have come loose.



gastank.jpg
 

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