We I start driving the car will not change gears until it gets to a very high rev - around 5K. However, after that initial hard shift it shifts fine after that. Also, the botton to shift the tranny from economy to sport to manual will not move or allow me to change it - it is permanently in economy. Does anyone have any suggestions as to how to proceed. Are there some small items that can be changed which might help? I was going to have a filter and fluid change to begin with. Any feed back on 89 750 tranny appreciated.