WHEN I TRY TO FILL THE GAS TANK ON A 2000 HYUNDAI, THE GAS PUMP SHUTS OFF EVERY 2 SECONDS.
i have the same problem on my 99 chevy camaro i've had this car ten years, never had any problems til the other day i was on E and i couldn't put gas in it so now its sitting at home til i can afford $500 to have the dealership fix it.....this really sucks!!!!!!!!!!!! anyone have any better solutions?
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Re: GASOLINE TANK FILLER VENT IS BLOCKED
You need to drop tanks and find out where blockage is and remove it! Temporarily, you can fill from a gas can, slowly so air can escape while filling! I'd at least look underneath and find out if the vent pipe to the fill neck is crimped anywhere.
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well first have you tried using another pump,and if so are you sure the tank is not full i know these sound simple but fuel gauge cold be faulty ext...but if so the fuel tank pressure could be to high do you or have you had the fuel come back up the filler neck something like a fuel tank overfill valve could be faulty in this case would need to see a prof. mechanic to diagnose ,and last pour gas in with a gas can see what happens you may get some type of answer fegas coming up filler or gauge inop ect...hope this helps
Due to the different shapes of fuel tank filler necks in cars & trucks, it may be necessary to vary one or more things to allow fuel to flow uninterrupted until the tank is really full.
The main problem can come from the new "vapor recovery" gasoline pumps. These pumps and hoses actually recover gasoline fumes from your tank as the liquid gasoline displaces the air / fumes in the tank is it is being filled. If gasoline flow is started at full blast, it can splash back slightly, causing liquid to be pulled back by the pump - so it shuts off. So, start with a slow rate of filling and gradually increase flow rate to maximum over 5 to 10 seconds. If it still shuts off, try some of the suggestions below.
First, don't fill at maximum flow rate from the pump - that is, don't set the nozzle for wide open. Select one of the other "latches" on the handle instead of the fastest flow and let the tank fill entirely at this rate.
Second, you should experiment a bit with the length of nozzle that you push into the tank's filler neck. If you push it in too far or too little, the pump nozzle can do what you're describing.
Third, try twisting the nozzle slightly so that it doesn't hang straight downward - a little to the left or right may provide a solution.
Lastly, try a different gas station. Their pumps may not be so picky with your tank's filler neck.
hi from uk make sure you push pump nozzle fully in tank filler as there is a flap just below filler that has to be opened fully to allow fuel to flow unrestricted ?? also considering age of vehicle ? check under the wheel arch along side of fuel filler pipe you will see a hose attached alongside ? make sure this is not kinked or blocked up at its lower end this hose is the ventilation for fuel tank ie as you put fuel into tank you also displace air from tank there for if air vent is blocked ? fuel will be restricted fro flowing hence pump shuts off ? the pipe vent is subjected to dirt from roadway and rain spray due to its location and usually blockage is with hardened mud over time ? hope this helps ? best wishes from n/west uk
The problem is that your gas tank "pushes back" like it's full even when it isn't and makes the fuel valve click off. Tom and Ray on Car Talk covered this in a 2007 show and I pasted some of their response below:
"RAY: This condition is probably caused by either a blockage in your gasoline vapor recovery lines or a bad refueling control valve.
TOM: Gasoline vaporizes. How do we know that? Well, when gasoline is spilled, you can smell it, right? What you're smelling is vaporized gasoline.
RAY: And in the old days, when you filled up your tank, all the air inside the tank -- the air filled with gasoline vapors -- came whooshing out through the filler hole or through a vent at the top of the gas tank.
TOM: But then people in places like Los Angeles realized they couldn't see the person standing next to them due to smog. And since gasoline vapors contribute to smog, car makers were forced to install devices to capture those vapors.
RAY: So now each car has a vapor recovery unit that collects the gasoline vapors from the tank and then, the next time the car is started, sends them to the engine, where they're combusted. Your vapor recovery system isn't working, Lottie. One possibility is that one of the rubber hoses is blocked or collapsed."
there is a vent tube that runs along side the fuel tank fill pipe, this tube allows air to went out as fuel is put in,if it kinks (it is very soft thin plastic tube) then u end up with your problem, replace the vent tube, the fill pipe and vent tube come as one part.
are you putting the delivery pump nozzle into tank filler far enough so it ppushes open the restrictor flap inside fill neck ? if so then check under n/s/rear wheel arch and where the filler pipe is you will see a smaller bore pipe clipped along side this is the fuel tank ventilation pipe that as you fill tank it will vent theair from tank as displacement occures ensure this pipe is clear ?