Question about 2000 Hyundai Accent

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GASOLINE TANK FILLER VENT IS BLOCKED

WHEN I TRY TO FILL THE GAS TANK ON A 2000 HYUNDAI, THE GAS PUMP SHUTS OFF EVERY 2 SECONDS.

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  • Anonymous Nov 21, 2008

    Exact same problem on my 2000 Accent. Searching so far I've seen a lot of similar cases. Possibly caused by a burst or blocked Charcoal canister. Now I just have to find where that is located.



  • bginty Dec 27, 2008

    same problem... anyone know how to fix this???



    mine is a 2001 hyundai accent

  • Anonymous Jan 12, 2009

    I can only fill the tank at the slowest possible speed without the nozzle shutting off.

  • candygirl200 Jan 23, 2009

    I found this on the internet. I'm going to try it this weekend. Good luck. This is so frustating at the pump.

    Answer
    If there's nothing obstructing the flow of fuel into the tank, then there's a restriction that's not allowing the vapors to leave the system. Here are the possibilities:

    1. Sticking fuel tank vent valve
    2. Restricted evaporative hoses
    3. Fuel in canister or canister otherwise restricted (you can cross this off since you've already replaced the canister)
    4. Canister close valve stuck closed
    5. Canister filter obstructed

    Your best bet is to probably start at the end of the list and work toward the beginning in your checking. The tank vent valves are on the top of the fuel tank, so you'd need to remove the fuel tank to check them.

  • Anonymous May 02, 2009

    I have the same problem with my 2003 Sonata with only 36,000 miles on it and I took it to a mechanic and it has been there 5 times trying to fix this problem. They replaced 3 parts and i still don't know if it will work. Also cost me $600.00 to fix.

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Hold filler nozzle back a bit and hold trigger halfway in

Posted on Nov 18, 2008

  • shannon S
    shannon S Dec 10, 2010

    This is a strange system, tank wise. There is a TSB (Technical service Bulliten) that states fuel venture problems. Unfortunately, most people start at the canister or the hose routing when the problem is in the tank. I can't answer for sure with out seeing a car, but lift up the back seat, on a 4 door. Remove the plate in the middle and you will see the fuel pump, filter, ect. When you turn the car off does the tank make a popping sound? This is realising pressure from the tank, indicating a venting problem. The canister purge is on the back side of the intake and the canister is behind the left rear tire. The vent line runs close to the ground, so make sure it isn't dented going to the tank. Make sure the vent valve is operating correctly. Normally one of these is the problem.
    Shannon
    Master ASE certified Mechanic

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Check the vent valve behind the intake. Also check for damage to the vent line from the tank to the filler neck. Also there is a TSB on the tanks venture system which causes all kinds of vent problems, clogged canisters, ect

Posted on Dec 10, 2010

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Gas pump shuts off before tank full


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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.

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"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.

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