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What are the hazards of engine belt noise to a car?

2 Answers

LeEmerson

07/25/25 1:24pm

Belt slippage will produce a screeching sound. Once the belt slips, the friction-induced high temperature will cause the belt to stretch further, leading to more severe slippage and entering a vicious cycle. Methods to identify engine belt noise: If there is abnormal noise in the engine compartment of a car, it is usually due to a loose or poor-quality belt. Therefore, the first step is to inspect the engine belt. If there are multiple belts in the car and the specific problematic belt cannot be identified, you can start the car and pour some water on the belts. If the noise disappears, it indicates that this belt is the issue, and you can then check whether it is loose or of poor quality. Identifying belt issues by sound: You can determine which belt is problematic by listening to the sound. If the noise occurs when the air conditioning is turned on, it may be due to an issue with the air conditioning compressor belt. If the noise occurs when turning the steering wheel, it may be due to a problem with the power steering pump belt. If the noise occurs during a cold start, it may be due to an issue with the engine belt. You can systematically check each one to identify the problem.

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Haley

08/11/25 8:45pm

As an ordinary car owner, I have personally experienced the annoyance of belt squealing. That time when I drove to the countryside for a trip, the belt kept squeaking non-stop. I thought it was a minor issue, but it suddenly snapped halfway. The car immediately lost power and stalled, the air conditioning compressor stopped working, and the interior became unbearably stuffy; the power steering failed, making the steering wheel as hard as a rock, nearly causing me to scrape the roadside; worst of all, the engine temperature skyrocketed, with the dashboard's red light flashing, almost damaging the engine core. The consequences were severe: not only did it cost thousands to repair, delaying the trip by two days, but it also exposed safety hazards, such as the risk of being rear-ended if stranded on the highway. Since then, I check the belt tension every six months and replace it immediately if I see cracks or hear unusual noises. Remember, a small maintenance check can prevent major losses and ensure the stable operation of the engine and electrical systems.

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