In the event the clutch is disengaged, the torque converter lets the engine to rotate with no stalling. Even though the car or truck is slowing and approaching a prevent, the TCC's application is unwanted. Much like the clutch with a manual transmission, it will cause the motor to stall. https://torqueconverterclutch41739.blogrelation.com/40490671/top-torque-converter-clutch-secrets