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Car pukes fuel out the filler neck
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DaveyDrama
CCFBG Club Member
Joined: Mon Nov 15, 2010 7:17 pm Posts: 118 Location: Vast Automotive Distribution
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Car pukes fuel out the filler neck
Okay..
In August, my fuel pump went, so I took it the shop to have it replaced. In order to avoid dropping the rear-end, they cut the filler neck off the tank and replaced it with a rad hose.
Ever since then, when I've gone to put fuel in the car, it will puke out the filler neck unless you hold the trigger at 1/4 throttle. I thought all along it was because they had damaged the vent in the filler neck, so today I had them put a new tank in to fix the problem. Well, the new tank and filler neck are in, and I still have the exact same problem.
You squeeze the trigger, the nozzle gags and fuel pukes out the filler neck. It makes no sense to anyone why it's doing this. The guys at the shop just laughed. They are at a loss for words.
Has anyone else had this issue? What can I trouble shoot from here?
Someone suggested the vent solenoid to me, but doesn't that only come in to play when the car is running? Or the return line could be reversed, or attached to the vent line..? I don't know. Help lol.
_________________2001 XJR - Summer Daily 1986 IROC - Under Construction 1993 Blazer - Winter Beater
Last edited by DaveyDrama on Sat Oct 15, 2011 10:01 am, edited 2 times in total.
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Fri Oct 14, 2011 4:08 pm |
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Z28 MeTaL HeAd
CCFBG Club Member
Joined: Tue Feb 28, 2006 1:42 pm Posts: 2739 Location: Mississauga
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Re: Fuel Puking Issue
Something plugged up in the vent.
The filler neck or the tank needs to have some sort of vent tube to let the air escape as the fuel takes it's place to get rid of the "gulping" effect.
Sounds like some shady tree mechanics if they cut your "filler neck" off the tank to avoid dropping the rear end. In fact, I dont even understand what that has to do with it? You dont NEED to drop the rear end to remove the tank on a 3rd/4th gen F-Body, lol.
Check the evap line and make sure nothings pinched or capped off.
_________________2012 Camaro 2SS/RS - LS3/TR6060: BTR Cam, Long Tubes, 3" Catback, UDP, CAI Intake, Air Scoop, 3.91 Gears, Poly Diff Bushings, Toe Arms, Poly Subframe, Poly Radius-Rod bushings, ZL1 Suede Shifter, ZL1 Mounts, Arun Tuned - 475rwhp 443rwtq 11.97 @ 116 w/ 1.85 60'Listen To Song Of My People!
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Fri Oct 14, 2011 5:59 pm |
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DaveyDrama
CCFBG Club Member
Joined: Mon Nov 15, 2010 7:17 pm Posts: 118 Location: Vast Automotive Distribution
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Re: Fuel Puking Issue
Z28 MeTaL HeAd wrote: Something plugged up in the vent.
The filler neck or the tank needs to have some sort of vent tube to let the air escape as the fuel takes it's place to get rid of the "gulping" effect.
Sounds like some shady tree mechanics if they cut your "filler neck" off the tank to avoid dropping the rear end. In fact, I dont even understand what that has to do with it? You dont NEED to drop the rear end to remove the tank on a 3rd/4th gen F-Body, lol.
Check the evap line and make sure nothings pinched or capped off. All of this was done with the old tank, and again with the new. It doesn't make any sense.
_________________2001 XJR - Summer Daily 1986 IROC - Under Construction 1993 Blazer - Winter Beater
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Fri Oct 14, 2011 6:54 pm |
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Z28 MeTaL HeAd
CCFBG Club Member
Joined: Tue Feb 28, 2006 1:42 pm Posts: 2739 Location: Mississauga
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Re: Fuel Puking Issue
DaveyDrama wrote: All of this was done with the old tank, and again with the new. It doesn't make any sense. Right, and you said that it started happening once they replaced the fuel pump (and cut the filler neck off in the process of not dropping the rear end, which again, doesn't make sense) and replaced the filler neck with rad hose. Obviously they had to lower the tank down some how, maybe not all the way to the ground but they definitely lowered it and in that process they could have pinched some of the other lines. So, again, check your evap lines and tank vent. Make sure nothing is pinched.
_________________2012 Camaro 2SS/RS - LS3/TR6060: BTR Cam, Long Tubes, 3" Catback, UDP, CAI Intake, Air Scoop, 3.91 Gears, Poly Diff Bushings, Toe Arms, Poly Subframe, Poly Radius-Rod bushings, ZL1 Suede Shifter, ZL1 Mounts, Arun Tuned - 475rwhp 443rwtq 11.97 @ 116 w/ 1.85 60'Listen To Song Of My People!
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Fri Oct 14, 2011 9:38 pm |
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DaveyDrama
CCFBG Club Member
Joined: Mon Nov 15, 2010 7:17 pm Posts: 118 Location: Vast Automotive Distribution
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Re: Fuel Puking Issue
Okay, let's assume all of that has been done and nothing is pinched. What then?
_________________2001 XJR - Summer Daily 1986 IROC - Under Construction 1993 Blazer - Winter Beater
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Sat Oct 15, 2011 9:46 am |
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flame
CCFBG Club Member
Joined: Fri Mar 03, 2006 8:52 pm Posts: 1164 Location: Drayton
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Re: Car pukes fuel out the filler neck
So are you saying they cut the filler neck on the new tank too?
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Sat Oct 15, 2011 8:40 pm |
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DaveyDrama
CCFBG Club Member
Joined: Mon Nov 15, 2010 7:17 pm Posts: 118 Location: Vast Automotive Distribution
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Re: Car pukes fuel out the filler neck
flame wrote: So are you saying they cut the filler neck on the new tank too? No no. When they put the new tank/sender in yesterday, they dropped the rear-end and put the tank in with the new filler neck. The problem originated when the new fuel pump was installed in August. At that point the filler neck was cut off the old tank and replaced with a rad hose. The vent tube was damaged at that point, but now that there is a new tank/filler neck and the problem persists, we are stumped ..
_________________2001 XJR - Summer Daily 1986 IROC - Under Construction 1993 Blazer - Winter Beater
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Sat Oct 15, 2011 9:36 pm |
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Hawk
Forum Moderator
Joined: Thu Mar 17, 2005 10:28 pm Posts: 5900 Location: Center of the Universe
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Re: Car pukes fuel out the filler neck
pinched/plug'd vent line, air has to get out somewere else, guess were it picked but then again I am prolly just talking out my ass after all
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Sat Oct 15, 2011 10:00 pm |
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DaveyDrama
CCFBG Club Member
Joined: Mon Nov 15, 2010 7:17 pm Posts: 118 Location: Vast Automotive Distribution
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Re: Car pukes fuel out the filler neck
Hawk wrote: pinched/plug'd vent line, air has to get out somewere else, guess were it picked but then again I am prolly just talking out my ass after all any other possibilities? just trying to think outside the box here
_________________2001 XJR - Summer Daily 1986 IROC - Under Construction 1993 Blazer - Winter Beater
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Sun Oct 16, 2011 2:03 am |
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Z28 MeTaL HeAd
CCFBG Club Member
Joined: Tue Feb 28, 2006 1:42 pm Posts: 2739 Location: Mississauga
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Re: Car pukes fuel out the filler neck
Hawk wrote: pinched/plug'd vent line, air has to get out somewere else, guess were it picked but then again I am prolly just talking out my ass after all Hey look, we think alike And no OP. This is a matter of physics, so unless the new tank you have was manufactured without any form of a vent tube/line, then no theirs no other possibilities. Unless acts of god count
_________________2012 Camaro 2SS/RS - LS3/TR6060: BTR Cam, Long Tubes, 3" Catback, UDP, CAI Intake, Air Scoop, 3.91 Gears, Poly Diff Bushings, Toe Arms, Poly Subframe, Poly Radius-Rod bushings, ZL1 Suede Shifter, ZL1 Mounts, Arun Tuned - 475rwhp 443rwtq 11.97 @ 116 w/ 1.85 60'Listen To Song Of My People!
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Sun Oct 16, 2011 4:23 am |
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Mr Bastard
CCFBG Club Member
Joined: Sat Mar 19, 2005 8:07 pm Posts: 4327 Location: The big town
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Re: Car pukes fuel out the filler neck
except fuel filling vents out the neck of the tank!
_________________9.06@155 mph, small block pump gas with 3.42's bird 8.14@166 mph, big block on 250 shot monza
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Sun Oct 16, 2011 9:26 am |
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Hawk
Forum Moderator
Joined: Thu Mar 17, 2005 10:28 pm Posts: 5900 Location: Center of the Universe
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Re: Car pukes fuel out the filler neck
Ironicaly my Escalade does the same thing, but only at the Pioneer here in town, every other gas station seems to be fine so i dont know why it doesnt like this one, it has done it ever since they put in all the new pumps, maybe they just shoot the fuel too fast, but its a royal pain in the ass to fill when the pump shuts off every 3 seconds and trying to find a sweet spot I cant tell u how many times I'v had to wipe off the gas from the paint Hey John, Jay.... PINION ANGLE!! ** runs and hides
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Sun Oct 16, 2011 11:21 am |
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DaveyDrama
CCFBG Club Member
Joined: Mon Nov 15, 2010 7:17 pm Posts: 118 Location: Vast Automotive Distribution
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Re: Car pukes fuel out the filler neck
Alright. Back on the hoist it goes. Keep ya posted
_________________2001 XJR - Summer Daily 1986 IROC - Under Construction 1993 Blazer - Winter Beater
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Sun Oct 16, 2011 11:29 am |
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