Any inscription on the solenoid next to the terminals? I'm thinking you bought a universal model, that would have worked if wires were connected correctly to begin with, but is probably toast now. Mine had a S-W stamped next to the correct terminal. I think the original hard start problem was a poor hot &/or ground connection to begin with. After elimination of these potential reasons, having the Battery "LOAD" tested & checking alternator output are the next steps.
"Saving the World....One Ford Truck at a Time."
Last edited by ymeski56; 12-26-2009 at 06:27 PM.