This happens when the auto is not really in motion or concerns a quit because of braking. Stalling won't suggest the vehicle stalls out and dies, alternatively this means the impeller is rotating even so the turbine is just not. Thus, the engine is jogging, but the automobile isn't going. https://torque-converter-clutch28036.thenerdsblog.com/39760555/not-known-factual-statements-about-torque-converter-clutch