im not really sure what wrong wit my car its hard to explain to start off the first initial take off is real slugish (until you start moving) when u drive around the city its fine but when u start goin like 65 70 its starts to feel like its jumping in and out of gear like i will be driving and the car will seem like it shift out of gear and start slowing down and loose rpms and then shift back in gear and have high rpms and it does this quickly in and out of gear and at the same time it does that the speedometer jumps from 0 to max anybody have an ideas????? please help