Two odds things happened yesterday. I drove to the store about 3 miles away. Just as I got there the 1-2 shift banged in hard. I went into the store and when I came out 15 minutes later, the truck would not turn over. According to the volt gauge, the voltage was around 11-12 volts, down from where it normally is. I let it sit for about an hour. When I got back to it, the truck started, but sounded like it was stuck in high idle. So I turned it off and had it towed to the house.
My question is will a almost dead battery cause the transmission to shift hard??
I have 252,000 miles on the truck. To my knowledge, the tranny has never been repaired. Up until this point it has been shifting normally.