Ok so I have been running into this problem here recently where my car doesn't want to accept any gas.... It will let the pump run for about a gallon then it will stop it. My check engine light has come on as well as my check fuel cap light. i have replaced the fuel cap and also had the check engine light checked out by a local dealer. They replaced a pump in the engine compartment three different times and were at a lose when that didn't fix the problem. Any ideas on what this could be and how do i fix it?