Originally Posted by projetmech
what a place to put something like that and what a way to mount it. would have been much better to install inside on the back cab wall. would be harder to get at but it would be protected and probably last forever.
I think the electronics must put off some heat that needs to be dispersed during operation... why else would they have bolted it to that big chunk of aluminum? Aluminum is expensive so they didn't do it for S&Gs.
One of the other indications that it gets warm is that its not integrated into the fuel pump. The lowest cost solution would probably be to put these controls into the pump (fuel sending unit) itself. But if it puts off heat then you don't want it inside a tank of gasoline.
This would also be the reason its out in the elements, instead of in the cab. If it was enclosed with no air movement then it could overheat.
Just my educated guess as an automotive engineer. My realm is brakes, not fuel systems.