Jeep stalls after filling gas tank.

[Mr Pinchy]

Hello everyone. I am new to this forum and hope someone has advice for a problem I am having with a 2004 Liberty which I purchased new. In the last year the Jeep sometimes stalls about one minute after filling the gas tank. More often if the tank is lower. I try to refill at half a tank. After it sputters and stalls it starts right back up again then is fine. No other stalling issues. I have done a limited check of the EVAP system hoses and found no cracks in any hoses. The check engine light does not come on and there are no codes pulled by the reader. This leads me to believe that it is the valve on the gas tank that floods the engine briefly. From what I understand if it is the valve at the gas tank the whole tank needs to be replaced as the part is not sold seperately. If anyone has had a similar experience I would appreciate the input or were to go on this forum for more information. Thanks

 

[LibertyTC]

Ethanol fuels like to absorb moisture especially in humid climates like Florida, leaving you with water, stirred up by filling.
I would try adding a heavier dose of a marine or ethanol fuel stabilizer, with a water remover and then see if the problem goes away.
This is one of the best products.
Star Tron Enzyme Fuel Treatment Gas Additive Small Engine
Also the IAC controls the idle and it may need cleaning!
see post #10..
http://www.jeepkj.com/forum/f196/idle-air-control-no-screws-44826/

 

[Onebigwrenchy]

Dit cha try Dry gas?
Could be water in the tank.. if no codes which stinks, it could bea tank pressure/ return pressure issue. Could be as simple as a gas cap but usually the brain senses that pressure issue and throws a code.
Hmm. Evap solenoid on fuel rail maybe? Returns unused fuel to tank. Off fuel rail.
Not sure if 3.7 has this system tho.

 

[Conundrum2006]

Shot in the dark here, I remember reading newer vehicles (for me that's 2000 up) don't like to be overfilled because of.. and I've forgotten. I think it was something to do with how the tanks handle overflow, where as older tanks like in the cherokee just keep topping it off no problem.
So some kind of pressure relief system getting flooded? But only at full instead of over filled?