Engaged in automotive professional maintenance for many years, for the industry has a profound ability to analyze the technology, then called everybody daily automatic transmission fault diagnosis analysis 7 minutes phenomenon.

1、掛檔難、頓挫感；

1, hanging files difficult, frustration feeling;

起步或行駛過程中，掛、摘、換擋發澀、費力，好像被什么卡了一下，有聳車、震動、頓挫感，有時涼車易掛擋，熱車難掛擋，帶有很多不舒適性;原因是變速箱內相關齒輪等部件得不到足夠的潤滑，且形不成持久的潤滑膜，使得部件無法流暢工作。有些變速箱如AMT本身就有類似現象，微微的頓挫，這個是產品本身問題，不嚴重的話是正常現象。其他的變速箱可以先通過換油嘗試解決該癥狀。

In the process of starting or driving, hanging, picking and shifting are astringent and laborious. It seems to be stuck by something. Sometimes the cool car is easy to shift and the hot car is difficult to shift. It has a lot of discomfort. The reason is that the gears and other parts in the gearbox can not get enough lubrication, and the shape is not durable lubrication film. The parts can not work smoothly. Some gearboxes such as AMT itself have similar phenomena, slight setbacks, this is the product itself, if not serious is normal phenomenon. Other gearboxes can first try to solve this symptom by changing the oil.

2、自動擋闖擋、沖擊感；

2, automatic blocking and impact.

起步沒動力，低速或中速行駛時車子有明顯聳車和頓挫感，同時儀表盤上的轉速表針上下浮動;中高速行駛過程中急踩油門踏板的情況下，車子打滑，轉速表針急速上升和有明顯的沖擊感;由P檔掛入R檔和D檔，車子有明顯的沖擊感、闖檔。

Start without power, low or medium speed driving car has a distinct sense of towering and setback, and the tachometer needle on the dashboard floating up and down; in the middle and high speed driving process, when the accelerator pedal, the car slipped, tachometer needle rose rapidly and had a clear sense of impact; from the P gear into R and D gear, the car has a clear sense of impact. To break the file.

原因可能是變速箱內出現雜質，在閥體形成堵塞，導致閥體上下運動不暢，無法順序實現對油壓的調節，導致闖擋、換擋沖擊故障。

The reason may be impurities in the gearbox, blockage in the valve body, resulting in the valve body up and down movement is not smooth, can not be sequentially adjusted to the oil pressure, resulting in breaking gear, shift impact fault.

3、變速箱異響、噪音大；

3, gearbox abnormal noise, loud noise;

車子在怠速時或行駛以及高負荷行駛過程中，聽到變速器有異響，甚至很大的噪音，在掛換擋時有無節奏、沉悶的響聲。造成上述現象的主要原因是變速箱內臟污，軸承、齒輪等部件出現磨損或嚴重磨損，或齒輪側面有損壞。

When the car is idling or driving at high load, it hears the abnormal sound of the transmission, even a lot of noise, and there is no rhythm and dull noise when it is shifting gear. The main causes of the above phenomena are the internal fouling of the gearbox, wear or serious wear of bearings, gears and other components, or damage to the side of the gears.

4、變速箱溫度過高；

4. The gearbox temperature is too high.

行駛過程中電腦顯示報警：變速箱溫度過高;或行駛一段后自己感覺變速箱過熱，甚至燙手。這應該是變速箱內部經常超負荷運轉，無法有效控溫造成的。

In the course of driving, the computer display alarm: the temperature of the transmission is too high; or after a period of driving, I feel overheated transmission, or even hot. This should be caused by the overload operation of the gearbox and the failure to control the temperature effectively.

5、車子發生打滑或沖擊；

5, car skidding or impact;

如果掛上D檔或R檔車子不走，或者車子反應很遲緩后沖擊，或者發動機轉速很高但車速卻很慢，就意味著變速箱內部的機械傳動部分出了問題。

If a car in D or R doesn't go, or the car reacts slowly and then crashes, or the engine rotates at a high speed but at a slow speed, that means something is wrong with the mechanical transmission inside the gearbox.

6、變速箱體內產生異味；

6, the gear box produces peculiar smell.

變速箱體是靠液壓油來工作的，當油溫過高時，會產生一些燃燒，這些異味會傳出來，這就說明變速箱體內的某些執行部件工作不正常。

The gearbox is operated by hydraulic oil, when the oil temperature is too high, it will produce some combustion, and these odors will come out, which indicates that some of the executive parts in the gearbox are not working properly.

7、引擎空轉；

7, engine idling;

引擎空轉一般發生在兩種情況：

Engine idling usually occurs in two situations:

(1)、在車輛在平穩種突然出現引擎空轉的現象，在車速慢下來有恢復正常，這種情況一般說明變速箱在短的時間內突然從高檔位降為低檔位，問題有可能處在控制系統或者散熱系統上，變速箱本身沒有問題。

(1) The phenomenon of engine idling suddenly appears in the smooth type of vehicles, and returns to normal when the speed slows down. This generally indicates that the gearbox suddenly drops from high gear to low gear in a short time. The problem may be in the control system or heat dissipation system. The gearbox itself is not a problem.

(2)、在加速的過程中或者在換檔的過程中出現短暫的打滑空轉現象，直觀的感覺是后者沒有前者那么厲害，實際上確實恰恰相反，后者的問題多半處在變速箱內的離合器等相關環節上，處理起來出要變速箱徹底解體檢修，時間成本消耗都要比前者多出許多。

(2) In the process of acceleration or in the process of shifting, there is a short slip idling phenomenon. The intuitive feeling is that the latter is not as severe as the former. In fact, it is exactly the opposite. The latter problem is mostly in the clutch and other related links in the gearbox. It needs to be completely dismantled and repaired. The cost of consumption is much larger than that of the former.

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