When the clutch is disengaged, the torque converter allows the motor to rotate without the need of stalling. Though the auto is slowing and approaching a prevent, the TCC's software is unwanted. Just like the clutch on the manual transmission, it leads to the motor to stall. Interference factors 1 https://torqueconverterclutch41739.blogrelation.com/40490671/top-torque-converter-clutch-secrets