I have a 99 Jetta that leaks gas out of the rear passenger side after it runs for a couple minutes. I jacked it up to look at that side but it doesn't leak when that side is jacked up. When it it sitting normal it pretty much pours out from that side. My brother thinks it may be an o-ring at the top of the gas tank but before I try taking it apart does anyone have any suggestions? I saw somewhere that that year has a faulty fuel tank filler neck. It's bad enough that I can't drive it.

 

dude the only thing you can do is pull the tank...sorry

ican tell you that if it was the oring it shouldent leak if its level. dont quote me but 99% sure the pump hole is on top of the tank. isay 99% becaus i have never pulled my tank but most are on top. itcould be the filler neck but agen i dont know but i think its on top.
i think your looking more at a hole in the tank, but agen you have to pull the tank to find out.

 

you dont need to pull tank
undo coverplate in trunk to get to sending unit and fuel linesmight have a loose clamp on one of the lines
filler is part of the tank
it is all one piece