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How to Determine if a Diesel Engine Water Pump is Faulty?

1 Answers

DelJune

07/30/25 12:45am

Water pump failure can increase the rotational resistance of the pump. Since the water pump is connected to the timing belt, increased rotational resistance can directly affect the engine's operation. This sound is a rotational friction noise. The noise can intensify with the engine's speed and vary in volume. These are a series of phenomena all related to the water pump, and not necessarily a complex issue. This fault is the most easily overlooked phenomenon caused by poor coolant flow. Replacing a small water pump can completely resolve the problem.

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