Ok we are at a complete loss having never had an auto before! Today we drove the car down the street and it wouldn't go up through the gears until it redlined. The roads we drove on were flat, it didn't make a difference how we accelarated, it would kick back ok but it was like it was stuck in gear until it redlined, Reverse was fine. The car is a 5L VK trimatic. Is it possible that the kick back is holding back the gear change or is the gearbox just dead? Any suggestions or ideas???????????