For the last couple of months, when pumping gas, the auto shutoff keeps happening frequently, about every 50 cents or so (every couple of seconds). It takes forever to fill my tank! This is happening at several different gas stations, so I am assuming it is something wrong in my car. What is it?
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Check for a clog in the fuel tank vent hose.
Also check to see that the anti-rollover valve isn’t stuck.
Most modern cars have warnings about topping off the tank when you get gas. Doing so can damage the vapor recovery system and cause the problem you have. Of course there are other things that can cause the problem as well.