Car keeps stalling in drive and transmission made a loud noise

My transmission might need attention. The engine stalled out after every couple of mins and I would have to shift back into park and start the vehicle again to get it going. It would occur mostly when I cut my wheel and turn out of a parking lot or corner the vehicle and the engine would completely stall out.

It stalled out 3 times, one time when the vehicle stalled out, I shift back into park from drive and the transmission made a loud noise. On occasions and not only today, the transmission would be in drive and when driving it would not engage moving forward. I would have to shift back into park and shift into drive again for the transmission to move the car forward.



A couple years ago the vehicle would do the same thing, but a little different, at higher speeds, the vehicle would slow it self down and stall out on the highway at around 55-65 MPH. I took it to one shop and they did a diagnostic test on it and found out the torque converter control solenoid kept making the transmission go into overdrive causing the engine to stall out intermittently. They disconnected it and said I didn't need to use it because it wouldn't cause any damage to the transmission, it was just designed to improve gas mileage, mostly. After it was disconnected, it did not stall out intermittently anymore, it would just stall out on occasions.

Today it started doing it again but I could not get it to stop stalling out. I think this time it might be the torque converter. I checked the transmission fill level and it was full, clean and did not smell burnt. I did a transmission pan gasket on it myself last year so I know it's not dirty or contaminated.

I know this one shop who does transmission diagnostics. Do you have any advice from experience? Something I should let them know so they will know how to fix it? I am a beginner mechanic but do not have any transmission scan tool to do a torque converter test or see what the transmission is doing. So I would rather take it to a specialist to someone who knows this stuff.

Thank you