If your torque converter is defective, it would make unpredicted pressures Within the torque converter, that may trigger rough idling. You will find a problem With all the electrical circuit with the torque converter clutch solenoid. This means that the Handle module (PCM/TCM) cannot appropriately Command the clutch, which means https://charliemuuut.tribunablog.com/torque-converter-clutch-an-overview-48602440