I have a Ford Escape 2013. Right now there is problem in transmission, that is when accelerating to around 60 km/h (40 m/h), it bumps after pedal release (It accelerates right after pedal release, while normally it should decelerates and stays put). This problem only happens at around 60 km/h (40 m/h) and no happen at other speed. But at lower speed transmission is sometimes jerky when accelerating or decelerating. I took car to Ford dealer, and they reloaded (reset) the programming module. It worked better in 1st week, but got worse after that. I notice that transmission jerky problem is worse in hot weather (over 20 degree with sunshine), but is better in cool and cloudy weather and not sure in cold weather.
I am getting headache with this problem because this is my 1st new car (bought 1 year old), and I have driven several old cars (10+ years old) and never met this problem. I need help on this weird transmission problem. Thanks a lot.