hey all,
I've just started having a problem when I fuel up my car. The pump stopped every 3 seconds as if the tank were full (although it was almost empty) and the gas started overflowing a bit. Later on I used a gas can and slowly poured 5 gallons in. If I poured it too fast then the gas would back up. Then I would slow down and it would go in fine. Anyone know what might cause this and how I could fix it? I think it must be something with the vent to my tank but I dunno...

Thanks in advance,
Zack