For the past couple of months, I've been having trouble filling my gas tank. I have a 2003 Hyundai Elantra, which has a 55-liter tank (approximately 14.5 US gallons).
When I buy gas, the pump clicks off after dispensing only two or three gallons. Knowing the tank can't possibly be full, I keep working on filling the tank, at a rate of less than a gallon per click, until 10-12 (possibly more) gallons later I see gas come out of the tube. (There's no other way to work out when my tank's full as I have no way of determining how much fuel is in the tank to begin with.)
Initially, I only experienced this issue at one particular gas station. Now, it happens everywhere.
This problem is annoying for two reasons:
- It takes a long time to fill my tank, and I risk wasting gas if I overfill the tank.
- I like to keep track of my mileage, but I can't do so if I don't know how much gas is being used. I don't really want to make gas overflowing be the point from which I measure.
What might be going wrong?