My transmission takes about 3-5 minutes of driving before it goes any faster than 20 mph. after the five minutes it feels like a gear kicks in but cant tell if its the rest of first or if it finally shifted into second gear. It'll shift fine after that as long as I don't floor the gas pedal. Did transmission filter and oil change. checked shift solenoids and epc which were within spec. I unplugged transmission side connector and turned car on and noticed that there was no movement in D. Question is, is this normal that there is no movement in D cause all other gears had movement. the only thing I can add is that Reverse kicks in real hard. Can anybody help me?