Mars Posted May 7, 2017 Share Posted May 7, 2017 The fuel gauge in my30 Desoto bounces around and leads me to wonder just how much gas is in the tank.Is this just the way those work or might I need a new sending unit? Thanks Link to comment Share on other sites More sharing options...
F&J Posted May 7, 2017 Share Posted May 7, 2017 Mine did the same. But does yours do it with a extra full tank just as much as 1/4? It should be less bounce if almost overfilled. sending units are the same design for decades, as to function, but much more modern dash units have a dampening feature, that makes them very slow to move, which removes the bounce. you should have baffles in the tank to help with sloshing, but the slosh still affects the sender. . Link to comment Share on other sites More sharing options...
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