Flushed My radiator today..Followed the directions,and the final step was to fill it with water for a final rinse. I did that and saw a bit of smoke coming out of my valve cover Breather..should that concern me? also,after this I put the anti freeze in,and tried to start it and the Battery was dead,,But I think I need to venture over to the electrical shop with that Question. M/G 55 235
