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Preventive maintenance for one of the hardest-working parts of your vehicle.
If your engine is chirping or squealing, don’t ignore it. It could be your serpentine belt now -- and critical vehicle systems later.
The serpentine belt (also called a drive belt) powers several critical systems in your vehicle, most commonly the power steering, air conditioning, alternator, and water pump (for the cooling system). This belt is the link between your engine and these important accessories, transferring energy from the crankshaft to the systems that enable you to start, steer, and cool your vehicle. Certain vehicles use two drive belts to power these components.
Preventive maintenance on the serpentine belt includes occasional replacement of the belt and (on some vehicles) periodic adjustments to the belt’s tension. Neglecting the serpentine belt long enough will compromise every system the belt controls -- and ultimately disable your vehicle. The good news: a serpentine belt can last up to 100,000 miles.
Since the serpentine belt controls other systems in your vehicle, a worn-out belt may first come to your attention through a problem in your power steering, alternator, climate control, or cooling system. Or you may see or hear the belt problem directly. Here are some common signs of serpentine belt breakdown:
A bad serpentine belt can disable your power steering, water pump, climate control, and alternator. A broken serpentine belt will stall your vehicle -- and also risks immediate, severe damage to major vehicle systems. That’s why preventive maintenance on this belt is so important. Be sure to follow your vehicle’s recommended schedule for adjusting and replacing your serpentine or drive belt -- and take advantage of the Midas Touch Courtesy Check1 for a visual inspection of the belt.
A serpentine belt should last anywhere from 50,000 miles (in older vehicles) to 100,000 miles (newer vehicles with belts made of the latest rubber compounds, in ideal conditions). So, how often to replace your serpentine belt depends on your vehicle, its age, the material your serpentine belt is made of, and your driving conditions. In addition to this occasional replacement cycle, some serpentine belts are designed to be manually tightened or adjusted from time to time. Check your vehicle owner’s manual for the recommended serpentine belt maintenance cycle -- note that it may be called the drive belt.
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