The timing and serpentine belts are the two belts of concern when dealing with vehicle maintenance. The serpentine belt transmits power from the engine to various accessory components, from the power steering pump and alternator to the air conditioning and water pump. The timing belt performs a vital role in ensuring all the engine components are working together. It connects the crankshaft to the camshaft to synchronize all of the movements and prevent collisions in the engine.
Signs of a bad belt
In older vehicles, it's easy to see the cracks and overall wear of the belts to assess their health. Newer belts, however, are made with more durable materials that generally will not crack. Common signs of a bad belt: