Automotive belts are used to keep various engine components in sync. The most common type of automotive belt is the serpentine belt. Serpentine belts are made up of several smaller belts that are routed around the engine pulleys. These belts keep the engine accessories, such as the water pump, alternator, and power steering pump, working properly.

As the engine runs, the serpentine belt turns these accessories. If the belt becomes damaged or worn, it can cause these accessories to fail. That's why it's important to check your serpentine belt regularly for signs of wear and tear. If you notice any damage, have the belt replaced as soon as possible.