Question about 1998 Toyota Corolla

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Every time i try to but gas into my car the pump keeps shutting off eveyr to seconds.I ws wondering y this happens

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The pump is shutting off because of back pressure. There are usually two lines going to the fuel pipe. The big pipe that the gas goes down and a smaller vent pipe that the air that is being displaced in the tank comes up. If this is blocked or is not working correctly , enough pressure can build up to shut off the nozzle of the gas pump. The gas nozzle thinks your tank is full.

Posted on Sep 14, 2010

  • ryan_case492 Sep 14, 2010

    the car only as 30,00 mileson it and I just bought it used today how do I fix this problem

  • David Belcher
    David Belcher Sep 14, 2010

    If you make an attempt yourself you will have to work very carefully. As you already know modern gasoline is a highly explosive mixture. If you have access to the fuel tube in the trunk (and a low fuel level in the tank) you could unhook the vent line and run some soft wire through to check for blockage. Applying gentle air pressure through the vent hose with the cap off might push a possible blockage into the tank (try hand pump, not air compressor). Remember gas is flammable and poisonous. Use extreme caution when working. An empty tank is more explosive than a full one and you do not want to work with a full tank because of potential spillage. I recommend you talk to ,or take it to a dealer. You do not want to take a chance of burning yourself or your house down.



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