We have a 2010 Toyota Corolla with 25,000 miles on it. Within the last two weeks we noticed that we can't fill the tank at a gas station without the pump clicking off. This has happened at four different stations. It takes about ten minutes to put in 5 gallons with the filler nozzle trigger clicking off about every 3 seconds and then having to take it out and start over. And all of the stations have the elephant snout vapor recovery systems on the pumps. It seems like there must be some kind of a clog or blockage in the fuel tank vent system somewhere but where? Is this a common problem with this particular type of car. It just doesn't seem like a problem like this should be going on at this low mileage. Thanks in advance.