RE: Never buy a saturn ION
Switch garages/dealerships. Also check all your fluids, could be as simple as being low on something (although I have no clue what).
I once brought my car to a garage to have my car fixed. All they had to do was change a transmission fluid line and top of the tranny fluid. When I got it back it shifted really jerkily from first to second and I had to add 8 quarts to bring it up to level. The transmission only holds like 10 quarts.....