Whether it is a newly purchased vehicle or a vehicle that has been used for some years, the chassis of the vehicle has abnormal noise during driving. Once this happens, many car owners will choose to go to 4s shop or auto repair shop for maintenance immediately. In fact, after the abnormal sound of the car chassis, it is often a simple small problem that the owner can solve by himself.

Under normal circumstances, abnormal chassis noise occurs, mostly because there is something wrong with the three-way catalytic converter. There are many traffic jams in the city. In this state, many vehicles with relatively poor fuel consumption will have abnormal chassis noise during driving. The reason for this situation is that the three-way catalytic converter has accumulated carbon deposits, which will condense into blocks after being accumulated to a certain extent, and such carbon deposits cannot be discharged outside the vehicle. In this state, the shell of the three-way catalytic converter will constantly emit various noises. In the process of testing, it is found that there is a problem with the three-way catalytic converter, so the best solution is to buy a new accessory directly for replacement. The price of this accessory is not very high, and self-maintenance is troublesome. It is not recommended to do so.

If there is no problem after testing the three-way catalytic converter, then pay attention to the suspension system. The suspension system of some vehicles will suddenly break during use, and there will be some signs before this happens, such as abnormal chassis noise. Observe, if the chassis really thinks it should be a suspension system, then be careful. This problem is difficult to solve by yourself, so you must go to a 4s shop for testing. It should be noted that the suspension system is related to driving safety. So don't go to the auto repair shop for maintenance if you have any problems in this respect. 4s shop is the only choice.

Sometimes, abnormal noise of chassis is not caused by chassis, but by engine jitter. The vibration of the whole vehicle caused by engine jitter leads to abnormal noise of the chassis. In this case, individuals can generally solve it. Generally speaking, the abnormal sound of the engine is caused by the failure of the spark plug or nozzle. Test these two accessories. After it is found that it does fail, the problem can be solved perfectly by purchasing new accessories to replace it. Usually, the cost of such solutions and methods is between tens of yuan and hundreds of yuan, which is more cost-effective than going to 4s shops or auto repair shops to solve problems.