The guide valve is exactly what the change lever hooks up to. Depending on which gear is chosen, the guide valve feeds hydraulic circuits that inhibit selected gears. For instance, When the shift lever is in third equipment, it feeds a circuit that prevents overdrive from participating. ­The middle of https://gearbox-auto52838.mybjjblog.com/the-definitive-guide-to-gearbox-auto-46816358