Gas pump issues...
02-17-2009, 06:06 AM
#11
JK Freak
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I hope it doesnt get like mine, it got progressively worse over time and I've gassed up from NJ to NC a lot, with the same issue no matter where I was.
02-17-2009, 06:57 AM
#13
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02-17-2009, 08:17 AM
#14
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My last few fill ups have, filled the tank. Then when I pull the nozzle out, gas pours out and down the side of the Jeep. I hope this isn't the start of what Jake is seeing.
02-17-2009, 08:20 AM
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02-17-2009, 08:34 AM
#16
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I am thinking it has something to do with the venting somewhere down in the bowels of the beast. I'm sure BCarr is dead on what is happening, I think I remember there being something in behing the driverside tail light that has to do with the vent.
02-17-2009, 08:54 AM
#17
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Two good pieces of advice were given to check:
i) Flapper valve (and whatever) in the filler neck pipe to tank.
-> might need a dealer to do that???
ii) The venting for the tank goes via EVAP cannister - there should be a vent valve and/or pipe from another fitting on the EVAP cannister to atmosphere.
[and a third pipe that goes to the engine via PRURGE valve]. Check the vent side for blockage - sorry I haven't checked mine so don't know exactly how it looks on a JK and if there is an electrical valve or not - but that's the principle.
i) Flapper valve (and whatever) in the filler neck pipe to tank.
-> might need a dealer to do that???
ii) The venting for the tank goes via EVAP cannister - there should be a vent valve and/or pipe from another fitting on the EVAP cannister to atmosphere.
[and a third pipe that goes to the engine via PRURGE valve]. Check the vent side for blockage - sorry I haven't checked mine so don't know exactly how it looks on a JK and if there is an electrical valve or not - but that's the principle.
02-17-2009, 11:11 AM
#19
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well I know what may be causing mine I found a crack in the evap canister, its actually on the white part that you see in this photo, according to my service manual its the ESIM switch and not usually serviceable...I guess I will be getting a new canister. 
Last edited by tkob1060; 02-17-2009 at 11:13 AM.
02-17-2009, 01:01 PM
#20
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ok just got back from dealer, they do have the Esim part separately, it was only 10bucks 
its listed on the receipt as part # 4891685-AA Detector Evap and its just twisted in and out without tools 
.....now I just need to wait till tomorrow for napa to get 5/8in fule hose in. The one hard plastic hose going to the evap has a bad kink in it, that maybe causing my issue also.
its listed on the receipt as part # 4891685-AA Detector Evap and its just twisted in and out without tools .....now I just need to wait till tomorrow for napa to get 5/8in fule hose in. The one hard plastic hose going to the evap has a bad kink in it, that maybe causing my issue also.