Well here I am again with my engine problem. Truck still under basic warranty and am running second rebuilt GPD engine, now has a cold engine knock till fully warmed up. On the way to the dealer today, so they could hear the knock, the engine blows out number two ignition coil and the spark plug. (!!!!) Why cannot Ford replace this Romeo 4.6L with a new unit? Will I have to go through two more attempts at repairs with Ford used/rebuilt engines. Before they do anything when this goes to the lemon law. I hope somebody from Ford motor company is reading this, I really liked my truck but this used/rebuilt GPD engine replacement is getting old. I just want a new engine.