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About Fan Couplings
Fan couplings work to keep a vehicle's engine cool, but can also auto-engage to allow the engine to warm up faster when cooler temperatures are present.
A faulty fan coupling affects the operation of a vehicle in many ways. There are certain signs that alert the need to replace this part. When cooling fans do not respond or fail to turn on, this means that the couplings need to be replaced. An overheating vehicle may be caused by a failure of the cooling coupling fans. A blown fuse is also a signal that the entire fan system should be replaced, especially to prevent electric surges.