Change valves source hydraulic pressure for the clutches and bands to engage Just about every gear. The valve body of your transmission contains quite a few shift valves. The shift valve determines when to change from a single gear to the subsequent. For illustration, the 1 to 2 shift valve https://daltonjgzpb.newsbloger.com/34413996/the-fact-about-gearbox-auto-that-no-one-is-suggesting