WEKNFUN,
I copied this procedure from an earlier post. The Electrical forum is full of stuff like this, and would be the best place to have it answered.
"It's pretty easy to break the problem into two pieces. If the gauge is properly powered on one side, and the other side goes to the sending unit, then turn the key ON, pull the sending unit wire (at the sending unit) and the gauge should read FULL. Same deal but ground that wire. Gauge should read EMPTY. If all this works, the gauge and wires are fine and the problem is the sending unit or its connection with ground".
This is pretty simple to do, give it a try! I think there is a common connection point on your truck in the fuse block. There is a wire from the sender that needs to be attached to a tab to complete the path to the gauge, make sure the wire is where it's suppose to be. I think this applies to your year truck.
Stuart
