Transmission problem
2003 Saturn Ion 4 cyl Front Wheel Drive Automatic 51000 miles

The car hesitates when pressing the accelerator from a stop, it bucks until it gets going, then it drives fine. When stopped at idle it feels as though it will stall. When put into neutral to keep the idle going it moves forward as if it is in drive. When I stopped the vehicle I could not change gears until stopping and starting it several times.