That does sound like there's some air seeping in somewhere.
I've found fuel leaks on other vehicles before by fixing up a gas cap with a schrader valve and pressurizing the fuel tank a bit -- crawl underneath and look & listen. Would that work on our trucks, or is there a vent somewhere that would have to be plugged up?
I've found fuel leaks on other vehicles before by fixing up a gas cap with a schrader valve and pressurizing the fuel tank a bit -- crawl underneath and look & listen. Would that work on our trucks, or is there a vent somewhere that would have to be plugged up?