Re: Where is sender?
When you find the sender, before removing and replacing it, remove the wire to the sender and ground it. Your fuel gauge should peg to the full. (I believe it pegs to full, it could be the other way around, but the idea is to be sure your guage works. When you disconnect the wire it should go to empty. When you ground it - it should go to full. If it doesn't then you have a problem somewhere other than the sender. Maybe a bad wiring connection or splice, or even the gauge itself.