一、变速箱漏油

　　1、 Transmission oil leakage

　　现象：变速箱漏油汽车多少都会出现一些症状表现出来，如果变速箱漏油量大的话，你就会发现车子起步费力,低档位冲击感严重,车跑的时候踩下油门转速提升,车子不怎么动.感觉象没挂上档一样，这就是变速箱漏油的症状。

　　Phenomenon: There will be some symptoms of transmission oil leakage in cars. If the amount of transmission oil leakage is large, you will find that the car is difficult to start, the impact of low gears is severe, and when the car is running, stepping on the accelerator increases the speed, but the car does not move much. It feels like the gear has not been engaged, which is the symptom of transmission oil leakage.

　　漏油原因：实际工作时箱内温度很高，使箱内润滑油产生蒸气，充满箱体空间，导致箱内压力升高，往往在最薄弱处，油气冲出而产生泄漏。多数都是由于变速箱油温过高、装配工艺或变速箱油封质量这些问题所导致的漏油。

　　Reason for oil leakage: During actual operation, the temperature inside the box is very high, causing the lubricating oil inside the box to produce steam, filling the space inside the box, resulting in an increase in pressure inside the box. Often, oil and gas rush out at the weakest point, causing leakage. Most of the oil leaks are caused by issues such as high transmission oil temperature, assembly process, or quality of transmission oil seals.

　　漏油后果：变速箱油和机油的作用一样，主要起润滑、清洁、降温、防锈、密封的作用，因此变速箱油缺少了就会造成变速箱内部润滑不够，造成干磨，长时间干磨就会报废。

　　Consequences of oil leakage: Transmission oil has the same function as engine oil, mainly for lubrication, cleaning, cooling, rust prevention, and sealing. Therefore, a lack of transmission oil can cause insufficient lubrication inside the transmission, resulting in dry wear. Long term dry wear can lead to scrapping.

　　二、挂挡后发动机熄火

　　2、 Engine stalls after shifting gears

　　现象：发动机怠速运转时将操纵手柄由P位或N位换入R位、D位、S位、L位（或2位、1位）时发动机熄火。或是在前进挡或倒挡行驶中，踩下制动踏板停车时发动机熄火。

　　Phenomenon: When the engine is idling and the joystick is switched from the P or N position to the R, D, S, L position (or 2 or 1 position), the engine stalls. Or when driving in forward or reverse gear, the engine stalls when the brake pedal is pressed to stop.

　　故障原因：可能是以下四个原因：发动机怠速过低；阀板中的锁止控制阀卡滞；挡位开关有故障；输入轴转速传感器有故障。

　　Reason for malfunction: There may be four possible reasons: low engine idle speed; The locking control valve in the valve plate is stuck; The gear switch is faulty; The input shaft speed sensor is faulty.

　　危害：如果数次挂挡造成发动机熄火，这时要查看入挡冲击是不是很大，如果比较大，就要打救援电话。不然多次尝试，本来只是换个阀体的事，最后却变成了变速箱大修。

　　Harm: If the engine stalls due to multiple gear shifts, it is necessary to check if the gear impact is significant. If it is significant, a rescue call should be made. Otherwise, after multiple attempts, it was originally just a matter of replacing the valve body, but in the end it turned into a major overhaul of the gearbox.

　　三、变速箱锁挡

　　3、 Transmission lock gear

　　现象：汽车在正常行驶中，加油只见转速很高，但是速度却提得很慢，踩刹车速度降到一定程度不降了。换成手动发现挂在一个挡位无法升降挡，即变速器锁在某一挡位，不再换挡。

　　Phenomenon: During normal driving, when refueling, the car's RPM is very high, but the speed increases very slowly. When braking, the speed drops to a certain extent and does not decrease. When switching to manual mode, it was found that the transmission was locked in a certain gear and could not shift up or down.

　　故障原因：自动变速箱的输入输出信号不正确或者各元件本身路线不良导致，有时也会有自动变速箱电脑和其他系统电脑的通信有问题而产生。

　　Reason for malfunction: The input and output signals of the automatic transmission are incorrect or the wiring of each component is poor, and sometimes there may be communication problems between the automatic transmission computer and other system computers.

　　危害：行驶的过程中很容易将自己处置在危险的环境中，在市区行驶速度降不下来或者走高速升不上去很容易出现事故。

　　Harm: During the driving process, it is easy to dispose of oneself in a dangerous environment. If the speed cannot be reduced or the highway cannot be raised in the city, accidents are likely to occur.

　　四、入档后汽车不动

　　4、 The car doesn't move after entering gear

　　现象：在汽车启动后将挡位挂D或者R挡后，松开刹车后车辆没有任何反应，不向前行使。手动挂1挡，松开离合后，汽车不行驶。

　　Phenomenon: After starting the car and shifting gears to D or R, the vehicle does not respond and does not move forward after releasing the brake. Manually shift into first gear, release the clutch, and the car will not move.

　　故障原因：可能是变速箱输入轴或者倒挡离合器出现损坏，或者D/R制动器损坏造成。也可能是变速箱漏油，严重缺少变速箱油导致，或者是汽车换挡杆和手动阀摇臂之间的连杆或拉索松脱，导致手动阀保持在空挡或停车挡位置。

　　Fault cause: It may be caused by damage to the transmission input shaft or reverse clutch, or damage to the D/R brake. It could also be due to transmission oil leakage, severe lack of transmission oil, or loose connecting rods or cables between the car shift lever and manual valve rocker arm, causing the manual valve to remain in neutral or parking position.

　　危害：容易使车主出现暴躁情绪，这时候必须要冷静，多尝试几次后，汽车仍然不动，在拨打救援电话。

　　Harm: It is easy to make car owners feel irritable. At this time, it is necessary to remain calm and try several times. If the car still does not move, call the rescue hotline.

　　五、换挡冲击

　　5、 Shift impact

　　现象：自动变速箱换挡冲击是指车辆在起步中由停车挡或空挡挂入倒挡或前进挡时，汽车振动较严重，或是在行驶中，自动变速箱在某个挡位或全部挡位升挡的瞬间，汽车有着较明显的冲击。

　　Phenomenon: Automatic transmission shift shock refers to the severe vibration of the vehicle when it shifts from park or neutral to reverse or forward during start-up, or the noticeable impact when the automatic transmission shifts up from a certain gear or all gears during driving.

　　故障原因：原因可能有以下几种：最常见的原因是变速箱油到了需要更换的阶段；其他原因还包括发动机怠速过高?；节气门拉索或节气门位置传感器调整不当；升挡过迟；主调压阀故障；换挡执行元件打滑；油压电磁阀不工作；电脑故障；

　　Reason for malfunction: There may be several possible reasons: the most common reason is that the transmission oil has reached the stage where it needs to be replaced; Other reasons include excessively high engine idle speed?; Improper adjustment of throttle cable or throttle position sensor; Shift up too late; Main pressure regulating valve malfunction; Shift actuator slips; The oil pressure solenoid valve is not working; Computer malfunction;

　　解决方式：更换变速箱油，并对变速箱进行诊断。

　　Solution: Replace the transmission oil and diagnose the transmission.

　　六、变速箱异响

　　6、 Abnormal noise from gearbox

　　现象：在行驶过程中听到变速箱处传来异响声音。

　　Phenomenon: An abnormal noise is heard from the gearbox during driving.

　　故障原因：轴承、变速元件的磨损及损坏，或是更换零件的精度过低造成的。

　　Reason for malfunction: Wear and damage to bearings and transmission components, or low precision in replacing parts.

　　七、换挡时间过长或过短

　　7、 Shift time too long or too short

　　现象：一般自动变速箱都是有特定的换挡转速和车速，在行驶的过程中，发现挡位升得快了，直接体现在车速上。

　　Phenomenon: Generally, automatic transmissions have specific shifting speeds and vehicle speeds. During driving, if the gears are raised too quickly, it is directly reflected in the vehicle speed.

　　故障原因：挡位传动比出现了问题。

　　Reason for malfunction: There is a problem with the gear transmission ratio.

　　八、变速箱打滑

　　8、 Transmission slippage

　　现象：在行驶的过程中，加油时听到发动机空转的声音，车子速度没有任何的提升，感觉加速无力。

　　Phenomenon: During driving, I hear the sound of the engine idling while refueling, but there is no increase in the speed of the car, and I feel weak in acceleration.

　　故障原因：离合器片烧损或者油压过低。

　　Reason for malfunction: burnt clutch plates or low oil pressure.

　　危害：如果车辆继续行驶，将造成变速箱严重损坏，甚至报废。

　　Harm: If the vehicle continues to drive, it will cause serious damage to the gearbox, even scrapping.

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