Along with the a few-passage torque converter, two passages are useful for transmission oil (ATF) move throughout the torque converter and for clutch cooling, when the 3rd passage is made use of independently to control the lock and unlock from the clutch. Recall, if you suspect a foul torque converter, https://torqueconverterclutch52961.techionblog.com/34279242/5-simple-techniques-for-torque-converter-clutch