BYD Qin abnormal sound to find the fault point, common fault or an example？ Can a hybrid car be bought？
Today, I will bring you a disassembly and maintenance case of Qin hybrid gearbox. Don’t miss your car owners or car owners who are starting or preparing to start a hybrid gearbox!
The fault performance of this car is that when it accelerates, it will make a violent noise, as if the car will take off in the next second! It is still very rare that the hybrid gearbox can make this noise. Even our experienced maintenance master said that he had only seen it no more than five times! Master, judging by experience, the bearing inside must be broken!
Next, follow our master to disassemble the gearbox of this car!
This Qin gearbox is different from the traditional gearbox. It is a rare model that needs to lift the gearbox and the engine down, so the technical requirements for the maintenance engineer are still very high.
The difference between this hybrid gearbox and the traditional gearbox is that it adds a motor on top of the traditional gearbox, and three gears are arranged at the back to transmit power. Under the motor is a traditional seven-speed gearbox.
Continue to dismantle it. As soon as the gear cover is opened, there is another big broken iron block inside, which is also mixed with bearing beads, and it is certain that the shaft of a bearing inside is broken!
Look at this bearing, it’s badly worn, and all the marbles on it have escaped, leaving only an empty coat!
The place linked with the bearing is also badly worn, and the circle is full of dents.
The iron slag and sludge from grinding are too bloody! It can be seen that this abnormal sound has been going on for a long time, and the owner really has endurance!
Finally, I will give you a general introduction to the common faults of this Qin hybrid gearbox.
1. There is an abnormal sound inside.
2. If the car doesn’t go in neutral, it will make a sound.
3. Dashboard warning: The function of gearbox computer is limited.
4. Dashboard warning: Check the gearbox system as soon as possible.
5. During gear shifting, there is a sound of gear collision.
6. When shifting gears, the car will pause.
7. The acceleration is weak, and the engine looks fast but it doesn’t match the actual speed.
8. There are no odd gears or even gears.
Cars can only use oil, not electricity.
At the same time, the above faults are also applicable to most hybrid vehicles. If your vehicle has the above problems, it should be repaired in time. If there are other problems, please feel free to consult. six