i too spent a small fortune to resolve the same stalling issue. the so-called mechanics at my dodge dealership (foothill ranch, ca) could not have been more useless. to make a long story short, i sprayed gumout inside the throttle body (beyond the throttle flap) and scrubbed the inside with a plastic bristle brush. i did this repeatedly and removed all kinds of black carbon build up. a professional cleaning, or new throttle body, would surely work best. but where i once expected to stall a few times a day, i now only stall about once every couple weeks. good luck.