Have a 1982 suburban diesel. The fuel gauge is slowly dropping down to empty, even though the tank is full. My question is, if it gets all the way down to empty, will this create a problem? I am wondering if the truck will think the tank is empty even though there is fuel, and not run. I'm ok if it just doesn't work, but I'm afraid it will shut my truck down. Please help as this is my daily driver and I can't really take it apart to figure out the fuel gauge at this time. Thanks in advance!