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1. Engine noise: The vehicle engine is a source of noise, and its noise Sound production varies with the engine speed (mainly through: the front leaf plate, hood, fire barrier, exhaust pipe generated and transmitted).

2. Engine noise: The vehicle engine is the source of noise, and its noise is caused by different engine speeds.It is mainly caused and transmitted through the front wing plate, hood, firewall and exhaust pipe. Road noise: Road noise is the noise caused by wind cut and chassis vibration when the vehicle is driving at high speed.

3. Tire noise Tire noise is caused by the friction between the tire and the road surface when the vehicle is driving at high speed. The size of the tire noise is determined by the road conditions. The worse the road conditions, the greater the tire noise. In addition, there is a big difference between the asphalt road surface and concrete road surface (mainly through: chassis, trunk, front leaf plate, front Wheel arc generation and transmission).

4. What kind of car noise 1 Engine noise. In addition to the mechanical sound made by the engine body, it also includes the noise of the intake system, that is, the high-speed gas enters the cylinder through the air filter, intake pipe and valve. During the flow, a strong pneumatic noise will be produced.

5. Car wind noise is the main noise of the car. Wind noise is the noise caused by the pressure change caused by the separation of the airflow when the car body hits the wind. There is also the noise caused by the interaction between the airflow around the body gap inhalation or the noise caused by airflow resonance.

6. What's the matter with the loud noise of the car? Car lovers all have this experience. The longer the car is driven, the louder the noise will be. I don't know what the problem is. In this issue, I will analyze the reasons for the noise of the car.

What's wrong with the louder sound of the car

1. Engine noise The vehicle engine is a source of noise, and its noise generated varies with the engine speed. It is mainly generated and transmitted through the front leaf plate, hood, fire barrier and exhaust pipe.

2. There are many factors that cause the sound of the car to become louder. It may be a problem with the engine, or it may be that the parts inside the car are loose, causing the car to become louder during driving. It is inevitable that there will be some malfunctions in the process of use of the car, and the noise generated by the engine will become louder and louder.

3. There are many factors that cause the sound of the car to become louder. It may be that there is a problem with the engine, or it may be that the loose parts inside the car cause the sound of the car to become louder during driving.

4. The following are the reasons for the louder noise of cars: lack of coolant. The main function of the coolant is to dissipate heat through cyclic flow and take away the excess heat energy generated by the engine work. If the coolant is insufficient, it will lead to excessive water temperature and loud noise. Tire aging.

What is the reason for the louder and roaring of the car

The reasons for the louder sound of the car are as follows: the aging of the exhaust pipe. When the vehicle is too old, the exhaust pipe is prone to aging problems, which leads to its looseness. , falling or rotten holes finally cause the abnormal noise of the exhaust pipe.

If the engine oil is added too much, the instantaneous workmanship resistance of the engine will increase, which will increase the rotational resistance of the crankshaft and reduce the output power of the engine. In addition, excessive oil will run into the combustion chamber to participate in the combustion. As a result, the vehicle will burn oil and produce blue smoke, resulting in increased fuel consumption. The model of the engine oil is wrong.

The fuel injector is atomized, which will also cause the abnormal sound of the engine. Shock absorber failure. When the shock absorber does not work normally, the problem of engine noise will occur.The oil pressure is insufficient or there is a problem with the solenoid valve of the carbon tank.

Cause of noise Engine noise The vehicle engine is a source of noise, and its noise generation varies with the engine speed. It is mainly generated and transmitted through the front leaf plate, hood, fire barrier and exhaust pipe.

The following are the reasons for the louder noise in cars: lack of coolant. The main function of the coolant is to dissipate heat through cyclic flow and take away the excess heat energy generated by the engine work. If the coolant is insufficient, it will lead to excessive water temperature and loud noise. Tire aging.