Just about every shift valve responds to a certain pressure variety; so if the automobile goes speedier, the two-to-3 change valve will just take above, as the pressure with the governor is superior more than enough to bring about that valve. This remarkable bit of gearing has appeared on HowStuffWorks https://gearbox-auto36914.is-blog.com/40291915/a-simple-key-for-gearbox-auto-unveiled