Jinan gearbox professional oil teaches you to solve the problem of big impact of gearbox. In many cases of maintenance of automatic gearbox, shift impact is the most common situation. The use of automatic gearbox for a long time often presents the situation of shift impact. If this situation occurs, it must be repaired in time to avoid the risk in driving.

　　车主黄先生：我的车已行驶25000公里，较近我发现冷车启动到热车，当发起机转数到达1000，刹车踩紧时，挂D挡起步时阻力较大，挂R挡时有较大冲击感。请问这是什么缘由？

　　Owner Mr. Huang: My car has traveled 25,000 kilometers. Recently, I found that the cold car started to the hot car. When the starting speed reaches 1000 and the brakes are pressed, the resistance of the D gear is greater when starting and the impact of the R gear is greater. What is the reason for this?

　　专家出诊：自动挡车型，理论上挂挡都会有冲击感，D挡与R挡一样。若两者冲击感不同，则有车主黄先生：我的车已行驶25000公里，较近我发现冷车启动到热车，当发起机转数到达1000，刹车踩紧时，挂D挡起步时阻力较大，挂R挡时有较大冲击感。请问这是什么缘由？

　　Expert consultation: automatic gear model, in theory, the gear will have a sense of impact, D gear and R gear are the same. If the impact of the two is different, then there is owner Mr. Huang: My car has traveled 25,000 kilometers. Recently, I found that the cold car started to hot car. When the starting speed reaches 1000 and the brake is pressed tightly, the resistance of the D gear is greater when starting, and the impact of the R gear is greater. What is the reason for this?
                         

　　专家出诊：自动挡车型，理论上挂挡都会有冲击感，D挡与R挡一样。若两者冲击感不同，则有可能是发起机前后防震垫损坏层度不同和变速箱内部毛病形成的。另外，较大冲击感有可能是发起机转速太高形成的，变速器的动力传送是由发起机转速决议的。

　　Expert consultation: automatic gear model, in theory, the gear will have a sense of impact, D gear and R gear are the same. If the impact sensation is different, it may be caused by the different damage layers of the shock pad before and after the launcher and the internal faults of the gearbox. In addition, the greater impact may be caused by the high speed of the initiator, and the power transmission of the transmission is determined by the speed of the initiator.

　　异响

　　Abnormal sound

　　车主赵先生：较近几天，我的车在凉车启动时，觉得在A柱左近有嗒嗒的声音，特别是在平稳路段，声音特别大。车热了之后，声音消逝，请问这是什么缘由？是不是气温太低惹起的呢？

　　Owner Mr. Zhao: In recent days, when my car started the cold car, it felt that there was a noise near the left of column A, especially in the smooth section, which was very loud. After the car got hot, the voice disappeared. What is the reason? Is it because the temperature is too low?

　　专家出诊：假如响声与温度变化有关，就应属发起机配气机构的冷响，这种冷响是随汽车行驶里程(5-10万公里)的增加，而逐步呈现的，也是正常的自然磨损 过程中呈现的异响。另外，依据赵先生所说的状况，平稳路段，声音特别大，则有可能是A柱左近部件松动形成的，与温度无关。

　　Expert visits: If the noise is related to temperature changes, it should be the cold noise of the valve train of the engine. This kind of cold noise is gradually presented with the increase of the driving mileage (5-100,000 kilometers), and is also abnormal sound in the normal natural wear process. In addition, according to Mr. Zhao's situation, if the sound is particularly loud in a smooth section, it may be caused by loosening of the left and near parts of column A, which has nothing to do with temperature.

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