What are the main signs of a failing water pump in a Toyota Prius?

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What are the main signs of a failing water pump in a Toyota Prius?

The water pump in a Prius plays a critical role in cooling the engine and inverter. What are the common symptoms of a failing water pump, such as engine overheating, coolant leaks, o r warning lights?

Lubaba asked on 14 Feb 2025 14:26:32 pm

1 Answer

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Car Mechanic Expert - on 14 Feb 2025 15:01:50 pm

Engine Overheating: If the water pump fails, it can lead to engine overheating due to insufficient coolant circulation.
Coolant Leaks: A damaged o r failing pump may cause coolant to leak from the pump’s seal o r housing.
Warning Lights: The Check Hybrid System o r Overheating light can illuminate on the dashboard if the water pump is not functioning properly.
Unusual Noises: You may hear whining o r grinding noises coming from the engine if the water pump’s bearing is worn out.