
The job of a car's transmission is to make sure that the right amount of power goes to your wheels to drive at a given speed. It works by shifting gears in a very similar fashion to what you see on a multi-speed bicycle. On a bicycle, if the chain is off, the car won't go, and if the chain is in too high a gear, you'll have trouble getting started from a stop. The same principle applies to your transmission, and if you don't keep it well-maintained,...