Has the owner ever encountered these situations? When the exhaust gas of the car fails to meet the standard or the car is noisy, many repair shops will recommend you to replace the three-way catalyst, car muffler, exhaust pipe and other parts, but you can only listen because you don't know enough about the car exhaust system. Do you really need to replace them? You have no definite answer in your heart.

In fact, when these problems occur in your car, you don't have to replace the three-way catalyst and other components. Maybe you can easily solve the problem with just a few simple accessories. Therefore, it is very necessary to clearly understand the function and composition of automobile exhaust system, so that you won't be fooled by the repair shop.

After reading the article on automobile exhaust system, you don't have to be fooled by automobile repair shops anymore.

1、 Automobile exhaust system and its function.

When it comes to the automobile exhaust system, I believe many car owners can say one or two, or that the automobile exhaust system is a device for exhaust at the rear of the automobile, or that the automobile exhaust system is a purification device for waste gas treatment, etc. These statements are not wrong, but they are not accurate enough. The real definition of automobile exhaust system is the system device for collecting, purifying and discharging exhaust gas. It can not only purify the waste gas containing harmful substances such as CO, HC and NOx into carbon dioxide, water and nitrogen, reduce automobile exhaust pollution, but also reduce the noise of engine and burner, and reduce the noise pollution to drivers, passengers and nature. Therefore, the function of automobile exhaust system or automobile muffler is one of the key systems of automobile.

2、 Composition of automobile exhaust system;

Automobile exhaust system is generally composed of gas manifold, exhaust pipe, catalytic converter, exhaust temperature sensor, automobile muffler and exhaust tail pipe. At the same time, whether each component needs to be replaced depends on the specific situation.

1. Catalytic converter.

The so-called catalytic converter, often called three-way catalyst, is a device installed after the engine to purify the exhaust gas, and it is also one of the important factors to ensure that the automobile exhaust gas meets the standard. Therefore, when the three-way catalyst is blocked, cracked and aged, it must be replaced with a new three-way catalyst. Moreover, in addition to finding a special 4S repair shop to replace the three-way catalyst, you can also go to the car muffler brand store to buy the three-way catalyst. The second method will be more cost-effective than the repair shop.

After reading the article on automobile exhaust system, you don't have to be fooled by automobile repair shops anymore.

2. Muffler and automobile exhaust pipe.

Automobile muffler is a part used to reduce the noise of motor vehicle engine. It can make the sound waves of two exhaust pipes cancel the interference with each other when superimposed, so as to achieve the effect of silencing. The automobile exhaust pipe is installed in the exhaust pipe between the engine exhaust branch pipe and the muffler, which can make the whole exhaust system flexibly connected, so as to reduce vibration and noise and prolong the service life of the exhaust system.

After reading the article on automobile exhaust system, you don't have to be fooled by automobile repair shops anymore

Whether the automobile muffler and exhaust pipe should be replaced, just like the three-way catalyst. If it is aging and blocked, it must be replaced. If not, but the car has the problem of substandard exhaust. At this time, you need to check the sealing performance of the exhaust system. If you have any questions, you can call Boxu metal products Co., Ltd. and professionals will answer them for you.