The engagement and disengagement on the lock-up clutch is determined by the direction the fluid enters the torque converter. The automated transmission fluid can enter either from the entrance in the lock-up clutch or involving the impeller and turbine, behind the clutch. The impeller (one) is rotated by the crankshaft https://sethucccz.ampedpages.com/little-known-facts-about-torque-converter-clutch-61198219