my 2002 5.9 dakota stalls in cold weather.Especially in reverse.It has been at the dealer for a week now and they have no solution.I have cleaned the throttle body and changed the tps and the air control valve.what could be causing this

 

Tourque converter? how many miles since a trannyflush?

 

Truck has 58,000 on it never been flushed.Is this a real possibility

 

idk if that would fix it tho, but may as well try it, since it needs it anyway!