Hey guys I'm having some trouble with my fuel system, i took out the sending unit in order to restore my tank a bit and i re installed it twice and my gas gauge is still reading low when i have plenty of gas in the tank, i took it out a second time to see if the float was stuck but I'm not quite sure if it was or not, how can i tell if the float is stuck and is there a certain way to put the sending unit back in the tank to assure the float won't be stuck?