ive got this gas smell and im stumped on where its coming from, i can smeel it when i turn the car off after driving it home and open my door. its not comeming from the engine bay (i thought it was bad injector rings) it seems to be coming from the rear. part of my fuel line broke and someone put a rubber hose there with hose clamps that was leaking at one point but i tightened it done now its dry. im thinking its coming from the sending unit im gonna pop the door off in the truck and see what it looks like in there is there a seal that could have broke or something?