Been ultra busy over at my channel and haven't gotten on the boards much but wanted to get some of the key what I think are the most helpful videos out to those that still aren't subscribed. This is a video I have been wanting to do for awhile and is a very common failure for these two concerns listed in title. The problem is sticking valves due to wear in the valve body itself and affects all 5R55S transmissions in many vehicles. This is the second most common reason for a Harsh reverse only concern on these vehicles and the most common reason you are getting P0741 codes for the Torque Convertor Clutch not coming on. I hope this helps!