Although the auto makers don’t usually specify a replacement interval for fan belts; V-belts or serpentine (flat, multi-ribbed) belts, most belt manufacturers do recommend periodic replacement for preventative maintenance. Here’s why: the incidence of fan belt failure rises sharply in the fourth year of service for the typical V-belt, and the fifth year for serpentine belts.
What’s more, eight out of ten V-belt failures and ten out of ten serpentine belt failures end up causing a breakdown! That’s because fan belts have the uncanny knack of always picking the worst possible moment to fail.
Casey Automotive understands the importance of fan belts and will inspect your vehicle so unnecessary breakdowns do not happen.
A broken belt is always bad news because when it snaps, all drive power to whatever it turns is lost. That means the water pump quits circulating coolant through the engine, the alternator quits producing amps, the power steering pump ceases to assist steering, and the air conditioner quits cooling. Many newer vehicles have a single serpentine belt that drives all of the engine’s accessories, so when it fails everything stops working.
The good news is that replacing the fan belts periodically can go a long way towards minimizing the risk of a breakdown caused by belt failure.