There is a large number of Great Wall Haval H5 green (2.0T manual gear) owners in reflecting the abnormal sound of gearbox. We found out that search engine search is quite a larger complaints about the abnormal governor of the Great Wall bus, but the model involved is not only Haval H5, including most of the models of the Great Wall. This article will conduct an in-depth analysis of Haval H5 gearboxes for complaints.
● Great Wall car abnormal sound is not a case
The complaints about the abnormal sound problems of Great Wall cars have never ended, and one wave is then a wave. In major related forums, it is also discussing extremely intense, and basically involves most models of the Great Wall, including popular Haval H3 / H5 / H6, C30 / C50 and other models. Most of the abnormal noise mentioned by the owner is the gearbox and the turning abnormal sound. Here is the problem of some models of car owners:
● Great Wall Haval H5 gearbox abaring complaints:
2010 H5 European version 2.0 MT two-drive elite owners complained, buy less than one month, driving 1000 kilometers, just have the abnormal noise of clutches, after the launch, take the uniform and normal, lift, there is more abnormal normally哗 的 异,, 3, 6 files in the driving, there is an abnormal sound of the sound of the sound. When driving to 17,000 kilometers, there will be such an abnormal sound, and now there is such an abnormal sound. The problem of this owner is relatively representative. Here is the problem of other owners:
● About Haval H5:
Haval H5 is a hot-selling SUV model, the Great Wall, for a few years in the top three of the SUV sales list. Haval H5 green Jing 2.0T manual stop type with gearbox, which uses GW4B20 / GW4B20B booster diesel engine produced by Great Wall Internal Combustion Engine Manufacturing Co., Ltd., and 6-speed transmission, Zhejiang Zhongma Group and Clutch produced by Chongqing Evil Drive System Co., Ltd.
● Differences regarding GW4B20 and GW4B20B:
For the 2.0L diesel turbocharged engine used by Haval H5, there is also two versions, one is the use of the third-generation Delphi electronically controlled high-voltage common rail system and Borg Warner turbine GW4B20, and the other is the use of Bosch Electric Control High-voltage Common Rail System And the GW4B20B of the Shanghai Lingweng Turbine. From the power output, the maximum power of GW4B20 is 110kW / 4000 rpm, the maximum torque is 310 nm / 1800-2800 rpm; the maximum power of GW4B20B is 100KW, the maximum torque is 300 nm.
The Haval H5 green model whose gearbox abver has a large power is a low power of the GW4B20B engine.
● The Great Wall responds to Haval H5 gearboxes:
The Haval 4D20 engine is a four-cylinder diesel engine, the power and torque are high, and the transmission used is six-speed transmission, and the internal gear is more than five gear. In the case where the torque and the speed fluctuations are large, the clutch damping is not sufficient to eliminate all of the vibration. The idle speed is smaller, and the set spring stiffness is insufficient to achieve good damping in the full temperature segment range. That is, the abnormal problem.
Great Wall 4S shop is to replace gearboxes and clutch tablets for solving the unveiled gearbox.
● How does the clutch transmit power?
The clutch mainly has a flywheel, friction plate, and a pressure plate. When the pressure plate is pressed against the foil to the flywheel, the torque on the flywheel can be transferred to the gearbox input shaft by the spline groove in the center of the friction.
● How is the clutch challenged?
In the process of power disconnection and engagement, there is inevitable impact, which causes the tempering in the vehicle shift, and has a certain impact on the life life. In order to solve the problem of impacting the shock clutch, the engineer is designed to be two parts, and the springs are applied between the friction plate from the driven plate body and the driven discs, which can reduce the shifting Mechanical impact, thereby enabling the vehicle to have better driving comfort.
A well-performance clutch, in addition to the use of well-wear resistance, good thermal decoration performance, high friction coefficient, the selection of shock absorber spring damping is also quite important. The use of excessive springs will cause the torsional shock absorber to reduce the shock absorbing properties, and the useful springs will make the vibration of the complex, which produces an abnormal sound. The selection of damper spring damping needs to match the engine and gearbox parameters, and if it matches improper, it will cause the abnth mentioned in the failure described in this article.
● How should a problem with a problem?
If our guess is correct, then replace the appropriate clutch film can solve the abnormal sound problem. However, on the feedback of netizens, after replacing the clutch and corresponding components, the symptoms are alleviated, but they have not been cured, some netizens still have recurrence. This cannot be excluded as the design and quality of the installation process, power assembly matching and components.
Summary: The abnormal sound problem is not the patent of domestic cars, many imported cars will have, even some luxury brands. The large-scale different in the power assembly is relatively rare. I hope that the Great Wall Motors have a perfect abnormal solution as soon as possible, so that the owner is comfortable with the Great Wall. Read more
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