The Charge of the oil force inside the lock-up clutch is completed by way of two valves: the relay valve and the sign valve. In such a arrangement the sign valve controls the force on 1 facet from the relay valve, which controls the pressure within the lock-up clutch. By https://torque-converter-clutch32952.educationalimpactblog.com/55911731/not-known-factual-statements-about-torque-converter-clutch