How to Solve Excessive Car Noise?

[Nettie]

Solutions for excessive car noise are as follows: 1. Loose belt tension. When the engine belt tension is insufficient, the engine will produce a sharp squealing noise during operation, severely affecting the driver's experience. Solution: Adjust the tension of the engine belt. 2. Incorrect engine oil condition. Solution: Replace the engine oil. 3. Leakage in the intake or exhaust pipe. When there is a leak in the intake or exhaust pipe, starting the engine will cause gas to escape from the leak during intake and exhaust, creating vibrations and noise. Solution: Inspect the intake and exhaust pipes and replace them if necessary. 4. Poor fuel quality. When using low-quality fuel, combustion inside the engine deteriorates, causing severe vibrations and noise. Solution: Replace with higher-quality fuel with a higher octane rating. 5. Abnormal engine noise. Loose screws on the engine underguard can prevent the engine from being securely fixed, leading to severe shaking and noise during operation. Solution: Tighten or adjust the screws on the engine underguard.