Hyundai Repair: Air in gas tank, gas tank, canister filter

Question
I have a 2002 hyundai and every time i try to pump gas it only puts in maybe $.75 and then overflows and i have to wait a couple of seconds.  it takes about 10 minutes or more to fill my tank. i know you are not supposed to run the tank down but i did that once and now i can't get rid of the air. if i could put the car over my shoulder and pat it on the back to burp it i would please help me!!!!

Answer
You've got a blockage that's preventing the vapors from exiting the fuel tank (or the fuel from entering the tank).  Most likely, you'll need to have the car professionally diagnosed to determine the issue.  Usually, when this occurs, the check engine lamp comes on and a code P0446 or P0449 is stored.

Common blockage issues are with the canister close valve and the canister filter.  But you could also have a defective fuel cut valve in the tank or a blocked canister.  You could also have a problem with a restricted hose or pipe either not allowing proper venting or not allowing the fuel to enter the tank properly.