S (stall issue): With this level the turbine speed is zero as well as impeller is rotating; the effectiveness during the stall issue is minimum, all-around 50%, which suggests that 50 percent of the ability coming within the motor is missing via friction and dissipated as heat; at this point https://torqueconverterclutch54184.blogsuperapp.com/34820806/not-known-factual-statements-about-torque-converter-clutch