The serpentine belt is essential for a naturally aspirated engine to run smoothly. Driven by the crankshaft, the serpentine belt can power up to four systems—the alternator, cooling system water pump, air conditioning compressor, and power steering pump. Without a working serpentine belt, the engine can overheat or lose electrical power. The serpentine belt is different from the timing belt, which synchronizes the valves.
Although it is extremely resistant, the serpentine belt must be inspected regularly by a certified NAPA AUTOPRO technician in order to detect any failures or loss of tension, and should be replaced according to the manufacturer’s maintenance schedule. If the serpentine belt breaks, the vehicle will break down and need to be towed. That’s why it’s vital that your serpentine belt be inspected by a certified NAPA AUTOPRO technician, who can replace it according to the manufacturer’s maintenance schedule if necessary.