This happens when the automobile is not in motion or comes to a halt resulting from braking. Stalling won't counsel the automobile stalls out and dies, fairly this means the impeller is rotating even so the turbine will not be. Consequently, the motor is working, although the auto isn't relocating. https://collinddayu.onesmablog.com/torque-converter-clutch-no-further-a-mystery-74600379