My ,29 DA quit running while I was driving, sounded and felt like out of gas. Sure enough (tank is full) no gas and when I blew back through the line I can hear the air coming out of the filler neck, but no bubbling noises. Took the gas line loose at the tank, no gas came out.. Is there a tube that runs to the bottom on the inside that could of fallen or rusted off ? I can see no way to get inside the tank at the outlet without un-soldering the plate ( it is also riveted) Any tips would be appreciated.