How to Sound Insulation and Noise Reduction for Loud Engine Sound

Sound insulation and noise reduction method for loud engine noise: 1. Install the sound insulation board on the engine. Installing sound insulation board on automobile engine is also a very cost-saving method. Although it has little effect, it can only bear the noise from the engine. Road wind noise cannot be solved. 2. Sound-proof cotton for car body, sound-proof clothing for car body, sound-proof cotton for car door panel, front cover of engine, trunk of car and floor. It can effectively reduce the transmission of external noise to the car. Just like wrapping soundproof cotton outside the cockpit of a car, the overall effect is very good. Disadvantages are high cost and exquisite workmanship. Otherwise, after installing sound insulation cotton, it is easy to make abnormal noise in the car. 3. Replace the door sealing strip. Of course, it is also a very convenient way to replace the good quality door sealing strip with a car. The long-term use of many cars will reduce the sealing effect of the sealing strip, and the noise when the car is driving will come from the loose door gap. Therefore, if the door sealing strip is aged and deformed, it is recommended to replace it with a new one.