变速箱的状态直接决定车辆的使用。当然，汽车的大部分部件，如发动机和变速箱，基本上不会发生故障。但是一旦它成为一个大问题，它不仅很难维护，而且维护成本也不是很小。

The status of the gearbox directly determines the use of the vehicle. Of course, most components of a car, such as the engine and gearbox, are unlikely to malfunction. But once it becomes a big problem, it is not only difficult to maintain, but also the maintenance cost is not very small.

目前，星型变速器自动变速箱维修公司已经对自动变速箱的一些常见故障进行了整理，供广大车主参考。当自动变速箱进入D或R齿轮时，刹车松开，车辆不动。这主要是由于输入轴或反向离合器损坏，也可能是由于变速箱漏油导致熄火造成的油位偏低所致，也可能是由于锁闭电磁阀或锁紧控制阀卡损坏所致。大部分故障是由于离合器盘损坏造成的，而且早期维护的费用也不会太高。

At present, the star transmission automatic transmission maintenance company has sorted out some common faults of automatic transmissions for reference by car owners. When the automatic transmission enters the D or R gear, the brake is released and the vehicle does not move. This is mainly due to damage to the input shaft or reverse clutch, which may also be caused by low oil level due to transmission oil leakage causing stalling, or it may be due to damage to the locking solenoid valve or locking control valve. Most malfunctions are caused by damaged clutch discs, and the cost of early maintenance is not too high.

3.自动变速箱漏油是指变速箱壳体或油底壳的漏油。变速箱漏油主要是由于密封部件老化，导致密封性差，或由于生产工艺差，导致沙眼等。

3. Automatic transmission oil leakage refers to the oil leakage from the transmission housing or oil pan. Transmission oil leakage is mainly due to aging of sealing components, resulting in poor sealing performance, or due to poor production processes, leading to sand holes, etc.

4.自动变速箱进水自动变速箱会实际进水，但在进水后不会立即出现，但机械损坏后慢慢会出现异常噪声、冲击等现象。变速箱的进气方式可分为外部进水和内部进水两种主要方式。外部进水是指车辆在水面停滞或水淹的情况下，使外部水源进入齿轮箱，使齿轮箱油变质。内进水主要指油箱串油。因此，车主通常需要对汽车进行定期检查，如果次发现变速器油质量不被注意的话。

4. Automatic transmission water ingress: The automatic transmission will actually experience water ingress, but it will not immediately appear after water ingress. However, after mechanical damage, abnormal noise, impact, and other phenomena will gradually appear. The intake method of the gearbox can be divided into two main ways: external water inlet and internal water inlet. External water ingress refers to the situation where the vehicle is stagnant or flooded on the water surface, causing external water sources to enter the gearbox and causing the gearbox oil to deteriorate. Internal water ingress mainly refers to oil leakage in the fuel tank. Therefore, car owners usually need to conduct regular inspections of their cars if they find that the quality of the transmission oil is not being noticed for the first time.

5 . 自动变速箱换挡时间与自动变速箱不匹配基本上都有特定的换挡速度和速度，如果你发现自己喜欢的车的换挡时间太长或太短，很可能是自动变速箱出了问题，因为变速箱的传动比不成比例..

5 Automatic transmission shifting time and automatic transmission mismatch basically have specific shifting speeds and speeds. If you find that the shifting time of your favorite car is too long or too short, it is likely that there is a problem with the automatic transmission because the transmission ratio is not proportional

6.自动变速箱撞击造成自动变速箱冲击失效的原因很多。例如，当进气滤清器堵塞、主油路泄漏、油泵损坏时，车辆在行驶过程中会出现换挡冲击。这种现象往往伴随着变速箱油污过大，阀体可能存在滞后现象。

There are many reasons for automatic transmission impact failure caused by automatic transmission impact. For example, when the intake filter is blocked, the main oil circuit leaks, or the fuel pump is damaged, the vehicle may experience shifting shock during driving. This phenomenon is often accompanied by excessive oil contamination in the transmission, and there may be lagging in the valve body.

7.自动变速箱的异常噪声也比较复杂，可分为三种异常噪声现象。轴承的异常噪声一般与转速有关，转速越高，异常噪声越明显)，差速器或主传动齿轮的异常噪声(50 km/70 km时，这种异常噪声一般更明显，踩在节气门上时异常噪声会加重，松开后能明显感觉到异常噪声的减弱)。液压泵等液压系统的异常噪声(这种异常噪声比较复杂，与转速有关，与转速无关)。当转速较高时，泵会因吸油受阻而产生异常噪声。很多车主在保养汽车时，都不会注意自动变速箱的检查和保养，很多车主认为自动变速箱是终身不用维修的。事实上，自动变速箱需要很高的工作环境，虽然它们不会经常发生故障，但是如果你不注意它们，故障就会提前发生。

The abnormal noise of automatic transmissions is also quite complex and can be divided into three types of abnormal noise phenomena. The abnormal noise of bearings is generally related to the rotational speed, and the higher the rotational speed, the more obvious the abnormal noise is. The abnormal noise of differential or main transmission gears is generally more obvious (at 50 km/70 km, this abnormal noise is usually more pronounced, and when stepping on the throttle valve, the abnormal noise will increase. After releasing, the abnormal noise can be clearly felt to be reduced). Abnormal noise in hydraulic systems such as hydraulic pumps (this type of abnormal noise is complex, related to speed, and independent of speed). When the speed is high, the pump will produce abnormal noise due to oil suction obstruction. Many car owners do not pay attention to the inspection and maintenance of the automatic transmission when maintaining their cars. Many car owners believe that the automatic transmission does not require maintenance for a lifetime. In fact, automatic transmissions require a high working environment. Although they do not frequently malfunction, if you do not pay attention to them, malfunctions will occur earlier.

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