2002 Saturn L300 Q&A

2002 Saturn L300 Question: smell gas outside of car toward the back of the car no leaks

for the past month and a half I have been smelling a gas smell coming from the back of the car, but now the smell seems to be getting stronger and stronger to the point where one time I smelt it in the car. I stopped driving it a couple of days ago and when me and my dad went to go look at it you could smell the smell before you even started it. we checked all under the car for leaks all around the gas tank but we couldn't find any and there was no evidence of any leaking on the driveway. all we know is we smell a very strong smell of gas toward the passenger back side of the car. -
Answer 1
poss fuel tank neck or sending unit,or seal on top of tank -