2005 Chevrolet Impala Q&A

2005 Chevrolet Impala Question: cannot fill my gas tank. gas will go in very slowly and run back out of filler

when i try to fill my impala, the pump shuts off. i have to use a gas can and pour gas in very slowly -
Answer 1
relief vent for the tank plugged. -
Comment 1
where is the relief vent located? -