The serpentine belt tensioner applies pressure to the serpentine belt, maintaining optimal tension to drive the accessories like the alternator and A/C compressor. The service life of the belt tensioner is the same as the belt itself, so they should always be replaced together. A worn tensioner prohibits the accessories from spinning properly, leading to premature wear and noise.
Your car maker has a recommended mileage interval for serpentine belt replacement. A complete accessory drive system service replaces the serpentine belt, the belt tensioner and any idler pulleys your vehicle might have. Your honest and friendly Kennesaw Auto Center service professional can check your system and let you know if it’s time for a replacement.
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Kennesaw Auto Center
2255 Moon Station Ct. NW
Kennesaw, Georgia 30144