Fuel/Gas Gauge quit working 1995 Bronco 5.8

I have a 1995 Eddie Bauer Edition Bronco with an E40D Trans and a 5.8, it has about 140,000 miles on it now. Everything was working great on it and then I went out of town for a week and when I got back I drove it the next day and the Gas Gauge is on empty all the time. I have had 3 Broncos like this and never had this problem I am looking for places to start diagnosing the problem. Thanks for the Help