Questions about the Fuel Pump

[mrnapolean1]

grandfathers truck was same thing ended up being eroded wires shorting together also just so you know sending unit can come fualty when you buy them got one from napa says full all the time ill get around to changing it out someday haha only been like that for over a year gotta change the box here soon so ill do it then

Where at did you find the eroded wires?