Just picked up my 01 5.3 wiring harness from a motor that had like 75k on it for like $250. Anything I need to look for to see if I would run into any problems after plugging it in? I dont really know what to look for other than cut wires, but I didnt really see any problems. My pops told before we start getting it, to spray it down with some contact cleaner and then after it dries up, but some dyelectric on it so I wont have connection problems. Any other advice on anything to look for or do to it?

thanks,
david