With the three-passage torque converter, two passages are used for transmission oil (ATF) movement through the torque converter and for clutch cooling, when the third passage is used independently to manage the lock and unlock of the clutch. Inside of a two-passage torque converter clutch actuation process (as in the https://raymonddcbyv.blogripley.com/34667225/fascination-about-torque-converter-clutch