How to Identify Abnormal Noises from Engine Belts?

1 Answers
DaisyRose
07/29/25 5:19pm
Methods for identifying abnormal noises from engine belts: You can determine which belt is causing the issue by listening to the sounds. If the noise occurs when the air conditioning is turned on, it might be the air conditioning compressor belt. If the noise appears during a cold start, it could be the engine belt. You can troubleshoot step by step. More relevant information is as follows: 1. Causes of abnormal noises: If there are unusual sounds in the engine compartment, it is usually due to loose or poor-quality belts. Therefore, the first step is to inspect the engine belt. If there are multiple belts in the car and you can't pinpoint which one is the problem, start the car and pour some water on the belts. If the noise disappears, it indicates that the belt is the issue, and you can check whether it's loose or of poor quality. 2. Pouring water on the belt: Pouring water on an engine belt that is making noise increases its stickiness, effectively enhancing the belt's adhesion. However, once the water dries, the belt will return to its original state. This is the principle behind pouring water on the belt.
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