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A gurgling noise under the hood of a vehicle is often caused by air trapped in the coolant system, which can occur due to low coolant levels or a leak. It may also indicate a failing water pump or issues with the radiator. Additionally, a clogged heater core can contribute to unusual sounds as coolant flows through the system. It's important to investigate these noises promptly to prevent potential overheating or engine damage.

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1mo ago

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