The control of the oil pressure while in the lock-up clutch is done by way of two valves: the relay valve and the sign valve. In this kind of arrangement the sign valve controls the pressure on one particular facet in the relay valve, which controls the strain inside the https://torque-converter-clutch10852.vblogetin.com/39977000/5-tips-about-torque-converter-clutch-you-can-use-today