The serpentine belt tensioner applies pressure to the serpentine belt, maintaining prime 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 restricts the accessories from spinning properly, leading to premature wear and noise.
Your automobile manufacturer 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 car might have. Your Honest and Friendly Town and Country Auto Repair tech can check your system and let you know if it’s time for a replacement.
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Town and Country Auto Repair
410-531-2493
4105 Ten Oaks RD
Dayton, Maryland 21036