自动变速器冲击故障是在起步或行驶中入挡或换挡的瞬间，车子有较强的震动冲击感。这种冲击的方式分为以下三种，
济南自动变速箱维修人员为您解析。
The impact fault of automatic transmission is that the car has a strong sense of vibration and impact at the moment of starting or driving and shifting. This kind of impact can be divided into the following three ways. Jinan automatic transmission maintenance personnel will analyze it for you.
入挡冲击
Shift impact
故障解析：在汽车启动的状态下挂入D挡位或R挡车子会往前冲一下，并带有咚一下的声音，这种故障首先要判断有没有故障码存在，如存在故障码，对应相应的故障码来判断故障。如果没有故障码，那就可能是变速器的油压调节出现问题，即阀体问题。
Fault analysis: When the car is in D gear or R gear when it is started, the car will rush forward with a thump sound. This kind of fault should first be judged whether there is a fault code. If there is a fault code, the corresponding fault code should be used to judge the fault. If there is no fault code, it may be a problem with the oil pressure regulation of the transmission, that is, the valve body.
故障解决：如有故障码，根据相应的故障码换掉对应的配件；如是阀体问题，根据阀体受损程度修复或更换阀体。
Troubleshooting: If there is a fault code, replace the corresponding accessories according to the corresponding fault code; In case of valve body problem, repair or replace the valve body according to the damage degree of the valve body.
升挡冲击
Upshift impact
故障解析：车辆在低速往高速慢慢提升速度时，会随着车速的提高和电脑的信号，以及发动机各方面的匹配值达到相应的数值时，才会实行换挡。但在某一挡位实行升挡的同时车子会像被什么东西托一下发出咚一声，这就是升挡冲击。升挡冲击的原因有很多，比如节气门信号不好、电脑板损坏、离合器磨损、阀体调压阀故障等。基本维修过程应该是先判断故障码，没有故障码基本就是离合器和调压阀的问题。
Fault analysis: When the vehicle slowly increases speed from low speed to high speed, gear shifting will only be implemented when the matching value of the vehicle speed, computer signal and engine in all aspects reaches the corresponding value. However, when shifting up at a gear, the car will make a thump like being held by something, which is called upshift impact. There are many reasons for upshift impact, such as poor throttle signal, damaged computer board, worn clutch, valve body pressure regulating valve failure, etc. The basic maintenance process should be to determine the fault code first. If there is no fault code, it is basically a problem with the clutch and pressure regulating valve.
故障解决：如有故障码，根据相应故障码维修，无故障码，检查离合器、调压阀，修复或更换相应配件。
Troubleshooting: If there is a fault code, repair according to the corresponding fault code. If there is no fault code, check the clutch and pressure regulating valve, repair or replace the corresponding accessories.
降挡冲击
Downshift impact
故障解析：降挡冲击就是指车子从高速降到低速时，挡位也会随着车速下降，在降挡过程中车辆会突然间顿一下，感觉像是被东西拖了一下。降挡冲击通常是没有故障码的，但可以直接判断就是变速器的问题，由于离合器工作不好和油压调节问题，才会造成降挡冲击故障。
Fault analysis: downshift impact means that when the car is downshifting from high speed to low speed, the gear will also decrease with the speed. During downshifting, the car will suddenly stop and feel like being dragged by something. There is usually no fault code for downshift impact, but it can be directly determined that it is a transmission problem. The downshift impact fault is caused by poor clutch operation and oil pressure regulation.
That's all for the impact fault of automatic transmission. I hope I can help you. Of course, you should remember to carry out regular maintenance to increase the service life of the car. Follow us http://www.jnbsx.com , learn more!
