Bad gas???

A ping pong ball?
Close!!! Some one had stuffed a shop rag down into the gas tank long before he bought the truck. He thinks that that's the reason he got the truck so cheap.....no one could find the problem. The shop rag would float around in the gas until it got sucked up into the pick up tube where it would cut off the gas and kill the engine. Once the engine died and sat for a while the rag would float off (with no suction to hold it) and keep floating until next time. Once it floated off the pick up tube the truck would start and run just fine until the rag found its' way back to the pick up tube.....but if you tried to start the truck right away the rag would still be there and that's why my friend had to wait 5/10 minutes before he could get the truck to start again. It's totally amazing how/why $hit happens!!!!!!!!!!:mad::BangHead: