The Charge of the oil pressure while in the lock-up clutch is done by way of two valves: the relay valve and the signal valve. In such a arrangement the sign valve controls the pressure on just one side with the relay valve, which controls the pressure while in the https://torque-converter-clutch98528.luwebs.com/34941036/helping-the-others-realize-the-advantages-of-torque-converter-clutch