What are the belts and hoses and how often should I change them?
In most new model cars, one belt does it all. When you start your car, your engine’s combustion process moves internal parts, which then powers a belt (or a series of belts, depending on your car) at the front of the engine block. This main belt—called a serpentine belt—powers everything from the water pump to the air conditioner to your power steering. Belts and hoses should be checked on a regular basis. Replacement is typically done at 50,000 miles, depending on the type of driving you do.
