hi, i'm currently at college and have found my car to be leeking petrol. I've managed to get under it and found that near the drivers side wheel theres a silver metal cylinder. Same size as a coke can. Soon as i turn the ignition on i get petrol pissing out of the cylinder through a hole the size of a pin head. But the pressure behind it is so much that i've lost half a tank of petrol since yesterday lunch. Now i want to get this patched up asap til i can get the part replaced. Any suggestions as to patching it? And can i remove the pipes leading into it to get the part off and fix it inside college. Suggestions would be really helpful right now. Thanks.