Using the 3-passage torque converter, two passages are used for transmission oil (ATF) stream from the torque converter and for clutch cooling, whilst the 3rd passage is employed independently to manage the lock and unlock of the clutch. So, you suspect your torque converter may very well be performing up. https://torqueconverterclutch75296.nizarblog.com/34141666/5-essential-elements-for-torque-converter-clutch