1985 Ford Ranger 4 Cyl 2.3l gas 4x4

Picked up the Ranger from a guy who couldn't figure out what was wrong with it for $100. Fuel pump wasn't turning on. New fuel pump, still nothin. Finally figured it to be the fuel relay. It fired up after sitting for a year like it was brand new. 15 miles later, me and the girlfriend are takin it out for a country cruise and as we're going around a curve, it dies. Figured I'd try to start it back up, and all that happens is a loud clicking noise coming from the passenger side(where the solenoid is located.) Tried to jump the solenoid with a plier, and all it did was make the clicking noise. As we we're pushing it a half mile to our house we turned the head lights on so we could see and then the gauges went off along with the lights. It was like we had a loose battery cable. Checked them both, and they were tight as could be. Any ideas are greatly appreciated, thanks.