The serpentine or V-belts power your alternator, power steering, water pump, and cooling fans. When is the best time to replace them?
Answer When they're cracked, glazed, or splitting
Cracked, glazed, splitting, or any other type of excessive wear indicates a replacement belt is required. You can usually tell the belts or slipping or need replacement if you hear a high-pitched squealing with a running engine.
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