Why does the engine sound louder after driving through water?

1 Answers
PaisleyMarie
07/30/25 9:02am
After driving through water, the engine may sound louder due to water entering the bearings of the engine belt, causing corrosion and poor contact, which affects signal transmission and operation. The reasons for increased noise after a car drives through water are as follows: Lack of coolant: The main function of coolant is to dissipate heat through circulation, carrying away excess thermal energy generated during engine operation. Insufficient coolant can lead to higher water temperatures and increased noise. Tire aging: Tires are made of rubber and will harden and age over time, producing noise, especially on poor road conditions, where the noise can sound like thunder inside the cabin. Additionally, the tread grooves gradually wear down and develop many small cracks, which is another reason for increased noise and can also affect driving safety. Excessive carbon buildup: Car noise includes not only mechanical sounds from the engine block but also intake system noise, which is the aerodynamic noise generated as high-speed gases pass through the air filter, intake pipe, and valves into the cylinders. This is particularly noticeable when there is carbon buildup inside the engine cylinders. Therefore, it is best to clean carbon deposits regularly.
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