Recently one day on the way home from work I got stuck in some heavy traffic due to a massive car accident and ever since then it seems that my car has been acting up. My car has been shifting very funny recently its an automatic its been shifting at really high rpms and the shifting is very bad, very jerky and not smooth at all. I have had problems with my speed sensor in the past so i took it off and cleaned it but this did nothing. Anybody have any ideas? Need to get tranny fluid flushed?