Refined metals HS code references

List of the contents of this article:

• 1,Refined metals HS code references What is the reason for the jitter when the car starts
• 2, What are the possible reasons for the car's shaking when starting?
• 3, What should I do if the start-up shake is severe for a month?

What is the reason for the shaking when the car starts?

1. The shaking when the car starts is the gearbox Question. This kind of failure is generally more common in manual transmission models.

2. The common reason for car start-up jitter is that the throttle valve is too dirty or the fuel injector has too much carbon.When the engine accumulates too much carbon, the gasoline sprayed by the fuel injector head during cold start will be absorbed by a large amount of carbon accumulation, resulting in excessive mixing gas during cold start and difficulty in starting.

3. This kind of jitter may be caused by indentation when the transmission gear and the transmission shaft mesh. This problem may exist in many powershift models, while AT and CVT models usually do not tremble when starting. Automatic manual transmission models such as DSG and DCT may tremble when changing gears.

What are the possible reasons for the car's shaking when starting?

1. The engine foot shakes. The automatic transmission car shakes badly when it is in the forward gear but has not started. It is likely that the engine foot has failed. In the process of using the car, the wear rate of the engine foot is much higher than that of other parts. After a long time or the engine foot Deformation and other problems may occur in certain quality defects.

2. This kind of jitter may be caused by indentation when the transmission gear meshes with the transmission shaft. This problem may exist in many powershift models, while AT and CVT models usually do not tremble when starting.Automatic manual transmission models such as DSG and DCT may tremble when changing gears.

3. Serious engine carbonization: Cars always have the problem of carbonization, including cylinder carbonization, throttle carbonisation, spark plug carbonation, intake carbonation, etc. When the engine accumulates too much carbon, it will affect the ignition energy, intake efficiency and air-fuel ratio of the car, resulting in unstable power output of the car, idling and acceleration jitter.

What should I do if the car starts shaking for a month

Solution: Check the oil pressure and replace the parts if necessary. Aging of engine parts. Car jitter is also related to the aging of engine feet (also known as claw pads).

When judging, set up the drive first.Bridge, plug the front wheel with safety plugs, start the engine and gradually change to high-speed gear, so that the drive wheel reaches the final test vibration speed. If the car body and the steering wheel shake at this time, it is the vibration caused by the transmission system.

It is relatively simple to solve this problem. You only need to replace the aging foot mat. It is recommended that the car owner choose the original accessories when replacing the foot mat.