why the ground on the battery is smoking during cranking? Also my starter got kinda weak. I figure the starter was getting hot? What do i do about that?
Smoking, hot wires and connections is ALWAYS an indication of poor connections. This simple statement can be misleading. The connection could be poor, say right at the battery post, or corrosion could have gotten inside the battery cable, making it effectively smaller. Of course the cables could just be cheap import crap, too
