Question about 2000 Hyundai Elantra

14 Answers

When I try to put fuel in the tank the nozzle keeps shutting off and it takes forever to fill it up. I don't know whether it is the tank pressure sensor or whatever. I have exactly the same problem, it takes forever to put gas in the tank, any advise will be highly appreciated

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  • micamargo Feb 16, 2009

    I have already try that and doesn't work, there must be something else to be done to get this problem solve. Pls experts your help will be highly appreciated, I know I'm not the only one with this problem.

  • micamargo Feb 16, 2009

    I have tried that but still is a nightmare to get gas into the tank. Is there anything else I can do, any part to replace to have this solve??

  • micamargo Feb 17, 2009

    Still waiting for your help, is there something that really can fix the problem.

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Your charcoal filter has been overfilled one too many times.
The charcoal filter is designed to recirculate gas fumes from your gas tank back into the fuel system. If you have been burning cheap gas or topping off the tank - the charcoal is clogged up.
It creates a back pressure to the gooseneck check valve, and will not allow gas to freely flow into the tank.
Sometimes removing the rubber hoses attached will relieve the pressure, but after 1 fill, you will be crawling back under the car to do it again (canister is filled with gas).


Get yourself a new one - either junk yard or online and fix yourself.
It's pretty easy to get to- it's under car between the rear wheel and the rear bumper. It's held on by two bolts and there are a few hose connections.
There are two rubber hoses.. one to the tank one to purge...plus an electrical connection to a valve.

Thanks for using FixYa - a FixYa rating is appreciated!!

Posted on Feb 17, 2009

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That is a factory problem with this model.
The bladder that lines the tank expands under the pressure generated bypump with too pressure, and not enough venting on gas vapours, this cause the pump to stop.

When this happens all you can do is finding slower pumps and fill slowly.

Posted on Feb 17, 2009

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Hi and welcome to FixYa,

To my understanding, the issue is caused by the inability of the trapped air inside the tank to escape while filling. This being so, the air has no alternative but to exit where the fuel is coming in. This caused fuel to splash back into the nozzle automatically triggering the nozzle to switch off fuel flow. This would therefore call for cleaning air escape vents/ports for clogged/blocked openings within the tank assembly/section. Most common causes are rubber hoses that have been clogged due to dirt accumulation and/or kinked.

Good luck and thank you for using FixYa.

Posted on Feb 17, 2009

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For a poor mans repair, use a funnel as an intermediary(go-between), sure beats doing costly diagnostic repairs & driving around town looking for good pumps.

Posted on Feb 17, 2009

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  • 124 Answers

Found the troubleshooting proceedure:


general diagnostic procedures: hard-to-fill fuel tankDESCRIPTIONAll 1999 and later Hyundai vehicles incorporate a new emission control system known as On-Board Refueling Vapor Recovery (ORVR). A general schematic of the system is provided below. Some owners may experience difficulty filling their vehicle with gasoline and a premature shut off condition as a result of the gas pump nozzles installed at their gas stations. The nozzles at these stations are in the process of being retrofitted or replaced by the nozzle manufacturers. In the meantime, owners should follow instructions posted near the gas pump, and/or try filling the vehicle at a different gas station.If the refueling difficulty continues, verify that the 1/2" vapor path from the fill vent valve on the gas tank to the air filter on the charcoal canister (see schematic below) is completely
free and clear. To perform the procedure below, make sure the fuel tank is below 1/4 tank full.To quickly determine the general location of a possible vapor path restrictionWhen I try to put - biggrin.gifisconnect the hose connected to the canister side of the liquid-vapor separator (see schematic below).Take the vehicle to a known "good" or major brand gas station.If the vehicle readily accepts fuel, the restriction is located between the liquid vapor separator and the air filter.If the vehicle does not easily accept fuel, the restriction is located between the liquid vapor separator and the fuel tank.9930002a.gifOn-Board Refueling Vapor Recovery (ORVR) SchematicThe following components are contained in the ORVR system:Vapor hosesLiquid-Vapor Separator(s)Fuel Fill Vent ValveFuel Cut Valve (anti-spitback)Canister Close ValveAir FilterCharcoal Canister9930002b.jpgAfter the restriction has been isolated to either half of the system, inspect each component to make sure it is free and clear of any restrictions. Verify that no
back pressure can be felt anywhere between the fill vent valve and the air filter at the canister.NOTE1999 Accents have two (2) liquid vapor separators: one located on top of the fuel tank, the other located alongside the filler neck.
When checking the liquid vapor separator, blow through one end of the pipe using lung power. NO
back pressure shoWhen I try to put - 9930002d.jpgelt. 9930002d.jpgVerify that the Fill Vent Valve is open by carefully removing the valve and confirming that the white plastic shut-off pWhen I try to put - 9930002e.jpg freely inside its cage.9930002e.jpgIf the fuel cut valve plunger is stuck closed, a hard-to-fill condition may result. Verify that the plunger moves up and down freely allowing fuel to enter the tank, but does not allow fuel to travel up the neck (under pressure).When I try to put - 9930002f.jpg should be "up" (closed) in its free state. 9930002f.jpgIMPORTANTWhen working with the Fill Vent Valve and associated plumbing, be sure to replace the hoses into the proper hose clips to prevent fuel from getting trapped / puddled in the vapor hose. Return fuel from the liquid-vapor separator must have a clear path to drain back to the tank.
Four Way Valve Purpose:
The Four Way VWhen I try to put - 9930002g.jpgs an additional vapor path to the canister during refueling. 9930002g.jpgNOTE1999 Sonatas have a Four Way Valve located between the liquid vapor separator and fuel tank.
Proper operation of the valve is as follows: Air flows freely in either direction through the 1/2" ports. Air flows freely in either direction through the 1/4" ports. Air flows from 1/2" port to the 1/4" port when blowing into one of the 1/2" ports while plugging the other 1/2" port. Air does not
flow from 1/4" portWhen I try to put - 9930002h.gif port when blowing into one of the 1/4" ports while plugging the other 1/4" port.9930002h.gifwarranty information:Normal warranty operation codes and times apply.

source- http://www.hyundaiforum.com/forum/

Posted on Feb 17, 2009

  • Frank Simard
    Frank Simard Feb 17, 2009

    Sorry about the messy solution. Send me an E-Mail at simard2@comcast.net and I will be able to send you the neater and better solution. It will also include pictures.

    Thank you.


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Hi ya....Try to only insert the nozzle a short ways into your tank. Sometimes the air excaping from your gas tank can make the gas splash back to the nozzle. This will cause the pump to stop, so just try not to insert it to deep and that should fix it...

thank u!!!

Posted on Feb 16, 2009

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There is air outline connected to delivery fuel line if the air line is blocked
then it will create a pressure which will shut fuel nozzle ,you need to replace
the delivery fuel line from the tank to the fuel cap ......


Good luck....

Posted on Feb 16, 2009

  • Anand Kumar
    Anand Kumar Feb 17, 2009

    the most common cause is a pluged fuel vent filter. this is located
    inside the L/R wheelwell there is a long plastic cover that has 3 or 4
    10mm nuts that hold it on. this cover gets filled with mud and the
    filter inside gets pluged with dirt. remove the filter and clean or
    replace it.



    the second most common problem is as ONLY1db stated the vapor canister
    leaks small charcoal pellets into the evap vent system. the easy way to
    test this is locate the two 12mm id hoses that come out of your
    canister (under the car behined the L/R wheel) and squeeze the hoses
    with a pair of needle nose pliers and if charcoal is leaking from the
    canister you will feel it and/or hear it crunch.



    I have seen this problem many times atleast twice a month sometimes
    more. it has never been a fuel vent valve, check valve, or saftey
    rollover valve.



    the canister is covered under your 5/60 warranty and your fuel vent filter is 12/12


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Sir,
When your gas gauge reads empty, your tank is filled with air instead of fuel. As you add fuel, the air must move out of the tank to make way for the gas. Next time you fill your car at the gas stationWhen I try to put - mag-glass_10x10.gif, take a look at the pump nozzle. You will find a hole about a half inch from the end of the nozzle. This hole is connected to a small pipe that travels through the nozzle to the handle.

When you fill your gas tank, some of the displaced air flows through the hole in the nozzle into the pipe. When the tank is full, the hole will be below the gasoline level and no air will pass through the pipe. A mechanical switch inside the nozzle detects when the flow of air stops and shuts off the gas.

You may have noticed that, after the pump shuts off, you can get more gas in your tank by pulling the nozzle out of the tank a bit. This is because you’re moving the position of the hole relative to the gas level and allowing the mechanical switch to reopen. 

Check this link just go through the site.....
 Use only the hold-open latch provided on the gasoline nozzle. Never jam or force the hold-open latch open by using some other object, such as the gas cap.
thanks good luck

Posted on Feb 16, 2009

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Switched to a different pump and try filling it should solve the problem.
it sounds like a pump-specific problem, but related to the bladder. You were probably just getting an air lock and the pump couldn't deal with it. My advice would be 1) don't use those specific pumps again and 2) if you have this problem again, try ensuring that there is a gap for pressure balance and try filling as slowly as possible at first. Once you get it filling make sure that you gradually push the nozzle down so that you don't have spillage. If that makes it cut off, just put in less gas than you possibly could have used (4-5 gal or so) and use a different pump next time.
The theory is that the bladder that lines the tank is somehow responsible for this. Theoretically, the bladder expands slightly under the pressure generated by too-rapid filling combined with inadequate venting. Then the tension from the expansion causes the bladder to 'exhale', thereby shutting off the pump. If quite full it may also exhale fuel!
Push the gas nozzle all the way into the filler tube. Then pull the nozzle out without squeezing the handle all the way, and then push it back in.

Posted on Feb 16, 2009

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Check these threads:

http://www.hyundai-forums.com/t19278-02-elantra-gas-slow-to-fill-issue.htm

http://www.hyundaiforum.com/forum/showthread.php?t=3298

Posted on Feb 16, 2009

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Hi

This problem is caused when the fuel lines and some of the brake lines running above the tank are probably corroded and could need replacing in the near future. Rust is another cause.

Posted on Feb 16, 2009

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  • Rylee Smith
    Rylee Smith Feb 16, 2009

    If the pump is shutting off constantly, even if you have the pump on the slowest setting, it may be a problem with the evaprative collection system in the car. This is linked to the egr system and purge canaster. There is a charcoal canaster filter in the car. If it becomes plugged up or there is a leak somewhere in the evaprative system, this can cause the gas pump to keep shutting off when you try to fill the car. Have the evap system checked and inspected. This happens normally when you "top off" the car after the pump shuts off. On newer cars, if you overfill the gas tank, the raw fuel is sucked into the evaprative control system and can cause these types of problems, including check engine lights. Never top off your fuel tank.

  • Rylee Smith
    Rylee Smith Feb 16, 2009

    it could be the breather hose connected to the fuel tank. Not sure where this is on the Elantra but should be somewhere around the tank/filler pipe neck. There has to be a path for air to escape as the tank fills with fuel. If there isn't, you will get back-pressure and the petrol will shut off. The breather pipe had swollen and become blocked; new breather hose should fix it.

  • Rylee Smith
    Rylee Smith Feb 16, 2009

    Also if still the issue is not resolved then the PROBLEM IS THE CHARCOAL CANISTER.



    Five THINGS NEEDS TO BE CHECKED/FIXED



    1 A CANISTER CLOSE VALVE COULD BE CLOGGED WITH CHARCOAL OR NOT WORKING

    2 A CANISTER FILTER

    3 ELECTRICAL CONNECTIONS TO THE CLOSE VALVE

    4 BROKEN CANISTER

    5 A PURGE VALVE WHICH PULL FUEL VAPORS FROM THE CANISTER

    6 ALL THE HOSES OF CANISTER SHOULD BE OPEN, MEANS NOT CLOGGED

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All fuel filling stations have a mechanism to prevent the gas pump from pumping gasoline from being overfilled in the gas tank.

If there is some type of restriction in the filler tube of your vehicle, then it will shut off the flow. Sometimes you can not use the full flow setting of the nozzle/filler. Depends on the vehicle.

If the tank is almost full, then the mechanism prevents overfilling quickly.

Posted on Feb 16, 2009

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It is a sensor in the fuel pump itself. Once they feel a certain amount of back pressure, it assumes your tank is full. For most cars this is not a problem, however, some cars like your hyundai have a smaller diameter Gas fill hose. What you can do is do not pull the handle all the way when filling your tank. Pull it only halfway, or find a gas station that does not have as heavy a gas flow. 

Posted on Feb 16, 2009

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Pull the nozzle out of the tank a little bit so some air can get in the tank while your pumping.and try checking.

Posted on Feb 16, 2009

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