covered wagon wrote:
What you do is put it on a relay so the computer activates the pump thru the relay and can then run off the battery. That way if there is excessive amp draw from a bad pump it won't potentially hurt the computer.
Inside the tank you just have a nice easy flow draw straw by remodeling it.
I completely agree that it would make much more sense to have the fuel pump outside the tank for easy access and serviceability. What a concept that would be for Ford. What I don't know is if the control voltage from the computer is a fixed on off or a variable servo control signal determined by the fuel injection system and input from other systems. If the power or signal leads for the fuel pump were connected to a relay to activate an inline pump, the servo control would be lost and become an on off switch no longer able to regulate flow volume or pressure. Just a little research is all that's needed to determine how or if the fuel pump is managed or simply on off. Somebody reading this probably already knows the answer. When you see that a fuel pump the size of a D cell battery immersed in a tank of gasoline for cooling is what makes your truck run, it is a little bit concerning. Not to mention flashbacks of TWA flight 800 come to mind with electrical components inside a fuel tank causing big disastrous explosions.
