Problem with Fuel Gauge

[aristico]

Hey all. The fuel gauge on my truck hasn't been working very well since I got it. When it fill it the needle usually wont go all the way up and when it does it quickly goes down. Now it doesn't seem to be working at all. What would be the proper steps in troubleshooting this problem? Any help s greatly appreciated.

Thanks
Tico

[fordman]

http://www.fordification.com/tech/fuel- ... -units.htm

[Dragon]

That is good but so many people used to do that a mess the wires up. Most times our problem is the gauges themselves.