Re: stalling only when coming to a stop
I would look for a shop with the right scanner which will show the tranny live data. Maybe you can see what is happening at the moment of stopping. Now several actions inside the tranny/torque converter are controlled by hydraulic valves, which will not show anything on a scanner. Here attached a hydraulic flow diagram, for 2nd gear in this case. From 2nd gear and up the torque converter clutch can lock. To be able to do so, the solenoid switch valve in the valve body will move its position to the left from 2nd gear and up. This will make the way free for fluid to flow to the Torque Converter Clutch (TCC), depending on the position of the LR/CC solenoid. So or the TMC is not deenergizing the LR/CC solenoid ( due to wrong inputs from speed sensors for example), or the CC Switch valve is sticking and keeps the TCC pressurized, or some mechanical problem inside the torque converter prevents it from releasing. The funny thing is that putting the gear selector momentarily into N and back to D will solve the problem, so my feeling is that the CC Switch valve sticks for some reason. But this one requires the tranny to be lowered and the pump assy to be removed.