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Old 06-24-2012, 11:18 PM   #1
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Fueling Problem gas overflowing at pump

I have had a problem with my jeep ever since I got it I have never had before. I cant fill it very fast or gas overflows. If I squeeze the trigger on the pump more than 25% it starts coming back out or the pump cuts off like the tank is full. It takes me forever to fill it up, and since I live next to NJ where it is illegal to pump your own gas (stupid as hell law) the attendants give me hell and tell me it is full since the pump keeps cutting off on them. This YJ has a 3" body lift I am ripping out soon and am not sure if that has anything to do with the problem. I am just hoping someone out there has had this same problem and knows how to fix it. It really pisses me off and I don't feel like "exploring" the gas tank lines. Dropping that thing is such a pain in the ass.

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Old 06-24-2012, 11:23 PM   #2
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Quote:
Originally Posted by OverkillYJ
I have had a problem with my jeep ever since I got it I have never had before. I cant fill it very fast or gas overflows. If I squeeze the trigger on the pump more than 25% it starts coming back out or the pump cuts off like the tank is full. It takes me forever to fill it up, and since I live next to NJ where it is illegal to pump your own gas (stupid as hell law) the attendants give me hell and tell me it is full since the pump keeps cutting off on them. This YJ has a 3" body lift I am ripping out soon and am not sure if that has anything to do with the problem. I am just hoping someone out there has had this same problem and knows how to fix it. It really pisses me off and I don't feel like "exploring" the gas tank lines. Dropping that thing is such a pain in the ass.
Vent on fill tube stopped up rubber hose under fender has breather cap on it

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Old 06-25-2012, 12:11 AM   #3
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I will have to check that. I looked under the fender and saw no hose ends. Figured i needed to drop the tank. Still might have to though. I didnt install the body lift and dont know what corners the po cut. Found a couple already on the lift. Thanks!
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Old 06-25-2012, 06:34 AM   #4
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Yeah, sounds like eithe the vent on the fill tube or the two rubber overflow stops need to be looked at. If you have a body lift, can get in there with your hands. Otherwise, will have to drop the tank to inspect/replace.
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Old 07-09-2012, 09:39 AM   #5
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Two rubber overflow stops? What do those look like? I looked in there and see everything is sealed. I was expecting to see a vent hose like the axles have i could just clear mud out of the end or something. I don't want to just start ripping everything apart blindly not knowing what the part I am after looks like. Any way you guys could explain this in a little more detail? I would really appreciate it. BTW, I can get in there easily without dropping the tank (for now). I want to have this fixed for a few weeks before I pull the body lift so I know it is fixed for a while before I make it a pain in the a$$ to get to again.
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Old 07-09-2012, 09:46 AM   #6
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It is a problem with jeeps from like 04-08 or something like that. Mine does it too, it sucks. I usually fill it up slowly the last 1/4, or only put some gas in. There is a thread on how to fix it. You have to take out the rubber hose right behind where you put the gas in and replace it with a hose with a valve in it. The hose is only like $30, so it's mostly labor depending on if you want to do it. I probably will when I get around to it
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Old 07-09-2012, 09:51 AM   #7
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Any links to the fix thread? I have searched and cant find it. I will buy that hose tomorrow if that's all I need to do. I just need to know where to buy it and which of the two hoses I need to replace.
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Old 07-09-2012, 10:06 AM   #8
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Old 07-09-2012, 01:30 PM   #9
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It sounds like whoever did the bl didn't extend the filler neck vent tube and it's pinched off. There are two hoses from the filler neck to the gas tank. The bigger hose is the filler and the smaller is the vent. Gas goes in the filler and air (vapor) comes out the vent. If the vent is plugged, the air tries to come out the filler pushing the gas out with it, shutting off the pump and/or spraying gas out. If you pull down the plastic flap in the wheel well under the filler, you should be able to see the two hoses and check to see if they are stretched to tight and pinched off.
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Old 07-09-2012, 07:42 PM   #10
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Thanks guys! Those last two answers were exactly what I was looking for. I will check this out sometime this week and let you know how it goes. Will try the free route first.
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Old 07-10-2012, 12:14 AM   #11
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It could have to do with the BL, but I don't have any BL, so that probably isn't the only problem...

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