I have no idea, but here is a bump for ya. Maybe send some compressed air down the vent tube to see if it is clear. Im not sure if it goes through a charcoal canister or not, but this would be the first thing I did. Good luck.

 

yea its a problem with alot of jeeps. alot of people got it covered under warranty and got a new fuel tank. My 05 has the same problem, if you looked like a few threads down, someone just posted about this

 

I did do a search on this forum and came up empty on the topic. I also have an 05, but obviously no longer under warranty.

 

Is your Jeep a Cali Jeep or 49 state? I used to own a 49 state and never had this problem, but my current jeep is a cali jeep and it does this. The charcoal canister comment got me thinking about the extra evap crap that cali requires.

Also i dont think its the actual fuel tank cause i now have an aftermarket tank and it still does it

 

Mine's not a Cali.

 

mines not a cali. Not the Cali Gasoline either as ive traveled many states and had the same problem. Hmm well the dealership may have replaced more than the aftermarket tank, its probably simply a valve that gets stuck. Someways to stop it is to stop fueling midway (atleast ive heard and I think its true). Give it a break and do it again, ive noticed it only mostly happens when I filled up alot of gas.

Yup mines an 05 and no longer under the 3 year warranty. Well I go through alot of forums and maybe I was talking about threads on there. But yea no ones come up with an exact answer, but the JKs also have this problem.

 

Hi. We are chasing this problem on Jeep Forum. There seems to be a defect in the vaccum evap system that is causing a check valve to close too early. I do not have the phone number for chrysler but it is listed on that post. If enough of us call, maybe they will issue a recall for this problem.

 

I think they also said it was the bubble thing which stops the flow gets stuck = (

 

06 Rubicon. It started belch every fillup at around 59k miles (1 month ago). Never happened before that. I'm sure if it continues the paint and flare will get screwed up. I usually can't avoid stepping in the gas which then makes the whole interior stink. Not to mention it's costly for me and the environment. I did fill out a complaint on some vehilce recall page.