For the first time this year I plugged my block heater since it was going down to about zero. This morning I woke up to a puddle of tranny fluid that appeared to have come from one of the tranny lines that are rubber/steel and it is leaking where the rubber and steel meet. Could this have anything to do with the block heater or is it coincidence? Truck is just out of warranty and they have already replaced the rear seal on engine. Any comments/suggestions would be greatly appreciated. Thanks