Pump (Impeller): The driving member that is definitely attached to your engine. It spins with the engine and moves transmission fluid inside the torque converter. The control of the oil stress inside the lock-up clutch is done by means of two valves: the relay valve along with the sign valve. https://torque-converter-clutch76429.canariblogs.com/a-secret-weapon-for-torque-converter-clutch-49107780