I have a '99 DeVille that blew a head gasket. I plan on junking the car, but before I have someone haul it off, I want to drain the $50 of gas out of the tank.
There appears to be a check valve at the bottom of the filler tube at the tank entrance. This is very effective in stopping me from simply putting a tube down into the tank.
My factory shop manual shows a "special" drain tube but they don't specify if it goes in the tank or maybe attaches to the fuel line from the tank to the engine. They simply say "Drain the tank."
Bottom line: Has anyone actually drained a tank successfully? If so, exactly how?
There must be a way to accomplish this because shops must need to drain tanks prior to a tank replacement.
Driving the car until the fuel is used is not an option.
If I disconnect the fuel line from the filter which is close to the tank, will the fuel pump run continuously with the key on or will the engine computer shut down the pump if the engine isn't running?
TIA, Rich