The control of the oil pressure inside the lock-up clutch is completed via two valves: the relay valve and also the sign valve. In this kind of arrangement the signal valve controls the pressure on one facet from the relay valve, which controls the pressure from the lock-up clutch. By https://torqueconverterclutch41739.blogrelation.com/40490667/helping-the-others-realize-the-advantages-of-torque-converter-clutch