Serpentine belts are critical to the operation of a number of your vehicle's components, from the water pump to the power steering pump to the alternator to the air conditioning. That's why it's important to have the serpentine belt inspected regularly, it is a part of AAMCO's Multi-Point Inspection. A worn serpentine belt is not always obvious, so it's important to have it changed according to your vehicle manufacturer's specifications. Timely replacement could mean the difference between trouble-free operation, and just plain old trouble.