1、 The automatic shift time is too long or too short. Generally, automatic transmissions have specific shifting speeds and vehicle speeds. If the shifting time is suddenly too long or too short, it means that the transmission ratio of the gearbox is disproportionate, and the engine speed may be felt to be too high. Even worse, the gearbox does not shift, which indicates that there is a problem with the gearbox.

二、车子发生打滑或冲击。如果挂上D档或R档车子不走，或者车子反应很迟缓后冲击，或者发动机转速很高但车速却很慢，就意味着变速箱内部的机械传动部分出了问题。

2、 The car skids or impacts. If the car does not move when shifting to D or R gear, or if the car reacts slowly and then impacts, or if the engine speed is high but the vehicle speed is slow, it means that there is a problem with the mechanical transmission part inside the gearbox.

三、箱体内产生异味。变速箱体是靠液压油来工作的，当油温过高时，会产生一些燃烧，这些异味会传出来，这就说明变速箱体内的某些执行部件工作不正常。如果不用拆修，就能自动变速箱顿挫、冲击、打滑、异响、高温等问题，对于车主来说，无疑是更好的，既绕开了汽修的陷阱，又能节省大修的成本，更不用损伤变速箱的性能。根据自动变速箱维修协会数据显示，90%以上的自动变速箱故障是由自动变速箱油(ATF)过热导致的，由此造成自动变速箱内形成顽固性的脏污与杂质，堵塞阀体，无法控制油压，同时，构成变速箱部件的磨损，顿挫、冲击、打滑、噪音等随之而来。

3、 There is a strange smell inside the box. The gearbox is operated by hydraulic oil. When the oil temperature is too high, some combustion will occur, and these odors will be transmitted. This indicates that some actuating components in the gearbox are not working properly. If there is no need to disassemble and repair, it can solve problems such as jerking, impact, slipping, abnormal noise, high temperature, etc. of the automatic transmission. For car owners, it is undoubtedly the best. It not only avoids the trap of auto repair, but also saves the cost of major repairs, let alone damaging the performance of the transmission. According to data from the Automatic Transmission Maintenance Association, over 90% of automatic transmission failures are caused by overheating of the Automatic Transmission Fluid (ATF), which causes stubborn dirt and impurities to form in the automatic transmission, clogs the valve body, and cannot control the oil pressure. At the same time, the wear and tear of the transmission components, jerks, impacts, slipping, noise, and so on, also come with it.

总结来说自动变速箱的常见故障为：行驶中出现冲击、闯车的现象;入档、换档冲击，入档熄火;车辆打滑，跑不起，起步无力甚无法起步;有异响，温度过高。简单快速辨别自动变速箱故障，对于快速自动变速箱问题很重要，一旦出现自动变速箱故障，应提早。

In summary, the common faults of automatic transmissions are: impact and collision during driving; Shift in, gear shift impact, shift in and turn off; The vehicle is slipping, unable to run, weak or even unable to start; There is abnormal noise and the temperature is too high. Simple and quick identification of automatic transmission faults is crucial for quickly resolving automatic transmission problems. Once an automatic transmission fault occurs, it should be resolved early.

自动变速箱一旦出现故障，车主要及时将其送修，如出现异响、打滑、冲击、漏油时，如果车主并未在意继续使用车辆，可能会导致车辆不走车，甚整个变速箱报废。因此，变速箱一旦出现故障，一定要及时将其送往变速箱维修站点进行维修，以免因小失大。

Once the automatic transmission malfunctions, the car owner should promptly send it for repair. If there is abnormal noise, slipping, impact, or oil leakage, if the owner does not pay attention to continuing to use the vehicle, it may eventually cause the vehicle to not move, and even the entire transmission to be scrapped. Therefore, once the gearbox malfunctions, it is necessary to promptly send it to a professional gearbox maintenance station for repair, in order to avoid wasting time.