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#3309550 - 03/12/14 03:31 PM Gas coming out of tank while filling
Tom NJ Offline


Registered: 07/27/06
Posts: 1675
Loc: New Jersey & Virginia
Two of the last three times I filled my tank (2008 Altima 2.5SL), the pump kept kicking off prematurely and gas was coming out of the tank. I had to fill the tank very slowly to avoid this. Any idea what can be causing this? It was three different gas stations.

Tom NJ

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#3309557 - 03/12/14 03:37 PM Re: Gas coming out of tank while filling [Re: Tom NJ]
Bob_E Offline


Registered: 02/07/14
Posts: 52
Loc: Long Island NY
I had a similar problem with my old Hyundai. In my case it was the EVAP purge valve. But it could be the vent line being clogged too or the charcoal canister
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#3309558 - 03/12/14 03:37 PM Re: Gas coming out of tank while filling [Re: Tom NJ]
K20FA5 Offline


Registered: 03/03/10
Posts: 298
Loc: Frisco, TX
My Nissan Frontier does this from time to time. I read somewhere that this might be caused by the EVAP canister? I'm wondering if it's a Nissan thing?

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#3309559 - 03/12/14 03:38 PM Re: Gas coming out of tank while filling [Re: Tom NJ]
Olas Offline


Registered: 12/11/13
Posts: 1051
Loc: Manchester, England
I'll guess at the non-return flap in the filler neck sticking partly closed - fill too fast and the filler starts to overflow, fill real slow and the fuel has time to trickle through the small gap under the flap.

Or maybe the breather is blocked.
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#3309560 - 03/12/14 03:39 PM Re: Gas coming out of tank while filling [Re: Tom NJ]
Shannow Online   content


Registered: 12/12/02
Posts: 28265
Loc: a prisoner island
I don't know for sure, but I've had a couple of cars which formed air pockets, and they would spit fuel out as the bubble escaped (think fish tank bubble pump).

If I found the right pump on the right slope, I could "overfill" nearly 10L from the manual.

Is there something on the evaporative emissions system that should be venting while filling ?

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#3309561 - 03/12/14 03:39 PM Re: Gas coming out of tank while filling [Re: Tom NJ]
123Saab Offline


Registered: 10/27/10
Posts: 1347
Loc: PA
Happens on our 08 Liberty too, Chrysler does not think it happens.
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#3309563 - 03/12/14 03:40 PM Re: Gas coming out of tank while filling [Re: Tom NJ]
dparm Offline


Registered: 04/19/10
Posts: 12612
Loc: Chicago, IL
Certain cars seem to be worse at this than others. My mother's 2001 Infiniti I30t (basically a Maxima) was notorious for this at many pumps.

I think that it's a poor design of the valve in the filler tube in these cases -- it isn't sending the "shut off" to the pump nozzle.
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#3309575 - 03/12/14 03:52 PM Re: Gas coming out of tank while filling [Re: Tom NJ]
salv Offline


Registered: 04/21/11
Posts: 1194
Loc: Morrisonville, NY
Canister is clogged or vent valve stuck closed.
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#3309623 - 03/12/14 04:35 PM Re: Gas coming out of tank while filling [Re: Tom NJ]
jrustles Offline


Registered: 02/24/13
Posts: 2035
Loc: Ontario, Canada
The only time I've had gasoline back up and shoot out the filler neck was in the USA, Sheetz I believe was the station. Has never happened to me in Canada. shrug

I was expecting the pump to click off when the tank gets full... apparently not.
Probably not the same issue you're having, but thought i'd mention it


Edited by jrustles (03/12/14 04:36 PM)
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#3310134 - 03/13/14 03:20 AM Re: Gas coming out of tank while filling [Re: Tom NJ]
paulo57509 Offline


Registered: 07/13/03
Posts: 1883
Loc: Tracy, CA
This started happening with one of my cars after someone tried to siphon the fuel out of the tank. During the attempted theft, they bent the feces out of the little nozzle flap so that it now just dangles inside the filler neck.

I have to hold the fuel nozzle by the hose an force it upwards at an angle to get the fuel to flow into the tank.
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#3310171 - 03/13/14 06:10 AM Re: Gas coming out of tank while filling [Re: 123Saab]
Pop_Rivit Offline


Registered: 02/09/08
Posts: 4077
Loc: Midwest
My 2006 Durango was experiencing a similar fuel spit back issue. It was covered under an extended Chrysler lifetime warranty on the part, and I had it replaced a month or so ago. It hasn't happened since.

Originally Posted By: 123Saab
Happens on our 08 Liberty too, Chrysler does not think it happens.


Interesting. When I researched the issue on my Durango everything that I read said that it also covered the 2008 Liberty-service bulletin 14-003-13. Why is it that Chrysler would issue a service bulletin and cover it by an extended warranty, while at the same time they don't think it happens?


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#3310173 - 03/13/14 06:12 AM Re: Gas coming out of tank while filling [Re: Tom NJ]
MaxZX Offline


Registered: 04/07/10
Posts: 56
Loc: VA
Friend at work had a 2011 VW CC. Took 20 minutes to get 10 gallons in the tank. Turns out some vent tube near the filler neck was clogged. The air in the tank couldn't evacuate when gas was pumped in, so the gas coming from the nozzle backed up quickly, causing the pump to stop. The only way for air to escape was back up the filler neck, so gas had to be added very slowly to allow for that. No idea if your Altima has a similar set up. Google up a parts diagram of the fuel filler for your car, might give you a clue as to what's going on.

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#3310304 - 03/13/14 08:40 AM Re: Gas coming out of tank while filling [Re: Tom NJ]
Tom NJ Offline


Registered: 07/27/06
Posts: 1675
Loc: New Jersey & Virginia
Thanks all! I'll investigate the flap valve, venting system, and canister to see if I can clear the problem.

Tom NJ

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#3310364 - 03/13/14 09:34 AM Re: Gas coming out of tank while filling [Re: MaxZX]
zzyzzx Offline


Registered: 05/18/12
Posts: 2120
Loc: Baltimore, Maryland, USA
Originally Posted By: MaxZX
Friend at work had a 2011 VW CC. Took 20 minutes to get 10 gallons in the tank. Turns out some vent tube near the filler neck was clogged. The air in the tank couldn't evacuate when gas was pumped in, so the gas coming from the nozzle backed up quickly, causing the pump to stop. The only way for air to escape was back up the filler neck, so gas had to be added very slowly to allow for that. No idea if your Altima has a similar set up. Google up a parts diagram of the fuel filler for your car, might give you a clue as to what's going on.


I was thinking that all cars had that second tube for venting purposes. My 1995 Escort does.

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#3310452 - 03/13/14 10:58 AM Re: Gas coming out of tank while filling [Re: Tom NJ]
MaxZX Offline


Registered: 04/07/10
Posts: 56
Loc: VA
A quick google image search for that year/make/model filler neck shows it has a vent tube parallel to the filler tube. The vent looks to attach to the tank at one end and back into the filler neck a few inches down from the top at the other end (the end where the gas nozzle is inserted). Quite possible something is blocking that. I even saw pics of where spiders had nested in there and clogged it.

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