Why does gas spew from the filler neck?!?!?

TurboGoKart · **Posted:** Thu Nov 01, 2012 12:18 am

I've owned this jeep long enough to fill it up twice. Both times and at different gas stations, gas has spewed from the filler neck. This time I at least heard the click of the pump nozzle shutting off, then freakin old faithful from the neck and gas ran all down the side of the jeep. What gives?!

*EDIT* Mods, if this should be in the KK Tech section please move it. My bad.

tjkj2002 · **Posted:** Thu Nov 01, 2012 12:19 am

The ethanol swelled the check valve ball in the filler neck not allowing air to escape properly when filling.Common problem on all newer vehicles with the mandated safety junk on the gas tanks.

TurboGoKart · **Posted:** Thu Nov 01, 2012 1:05 am

What's the fix for this?

hooperswish · **Posted:** Thu Nov 01, 2012 10:49 am

TurboGoKart wrote:

What's the fix for this?

If you fill up SLOWLY, I have found it to cut the issue to about a third of the time.

lfhoward · **Posted:** Thu Nov 01, 2012 1:03 pm

TurboGoKart wrote:

What's the fix for this?

There is a Technical Service Bulletin about this. All the KK TSB's are listed in a sticky in the KK Tech section, but here's the link to the gas tank TSB:
https://docs.google.com/file/d/0B8C_jwigGKy2OTA2ODY3MDMtNmJjYi00OTMwLWI5NmItOTNlNmNlZDk5ODcz/edit?num=50&sort=name&layout=list&pli=1

WHITE the civilian · **Posted:** Sun Nov 18, 2012 6:28 am

My 06 KJ started doing this a few months ago, and absolutely shoots out like darn ST Helen's

tommudd · **Posted:** Sun Nov 18, 2012 10:21 am

Glad mines never done it, have only seen 1 KK do it as well

mikey1273 · **Posted:** Mon Nov 19, 2012 8:35 pm

never has mine ever done this, maybe the CRD has different plumbing.

csmith515 · **Joined:** Thu Dec 15, 2005 4:31 pm **Posts:** 16

Happens to me too. The fill slowly trick works sometimes.

MoD · **Joined:** Sat Mar 17, 2012 12:53 am **Posts:** 1343

my 05 rene does it everytime unless i fill it as slow as possible but i hear that the wrnagler guys figured it out by putting some gm filler hose with the metal butterfly valve in it on

dieselenthusiast · **Posted:** Thu Jan 17, 2013 11:29 pm

Buy gasoline with very little to no ethanol.

HedsIc · **Posted:** Fri Jan 18, 2013 12:08 pm

This just happened to be the other day in my 06 KJ. I was pretty annoyed by it. I just got the Jeep and it was my first full fill up since it came filled from the dealer.

hooperswish · **Posted:** Sat Jan 19, 2013 12:28 pm

dieselenthusiast wrote:

Buy gasoline with very little to no ethanol.

Great, I'll do that. Now where in the he%^ do I buy 100% pure gasoline? Alaska maybe? :5SHOTS:

dieselenthusiast · **Posted:** Sat Jan 19, 2013 12:35 pm

hooperswish wrote:

dieselenthusiast wrote:

Buy gasoline with very little to no ethanol.

Great, I'll do that. Now where in the he%^ do I buy 100% pure gasoline? Alaska maybe? :5SHOTS:

When I drove from NM to KS, I found 3 gas stations that didn't have ethanol or less than 2%. If you do a little research, then you might be surprised.

TurboGoKart · **Posted:** Sat Jan 19, 2013 8:51 pm

On an empty tank, fill to about 16gal, then slow it down a bunch. Has worked for me everytime now since those first two gasplosions.

tjkj2002 · **Posted:** Sat Jan 19, 2013 9:28 pm

hooperswish wrote:

dieselenthusiast wrote:

Buy gasoline with very little to no ethanol.

Great, I'll do that. Now where in the he%^ do I buy 100% pure gasoline? Alaska maybe? :5SHOTS:

http://pure-gas.org/

dieselenthusiast · **Posted:** Sat Jan 19, 2013 10:03 pm

tjkj2002 wrote:

http://pure-gas.org/

I also use this one: http://www.historicvehicle.org/Resource ... re-Gas-Map

AOgden · **Joined:** Sat May 22, 2010 1:39 pm **Posts:** 15

My 07 has done this from the first fill up. the only way Ive found to combat it is to fill as fast as possible until you hear a difference in how the fuel is moving in the filler neck and then slow way down. Royal pain in the stupid when its below 0 and the wind is blowing.

Why does gas spew from the filler neck?!?!?

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