Mining industry HS code analysis

List of the table of contents of this article:

• 1,Mining industry HS code analysis What is the reason why the engine of the car's refueling door is rattling?
• 2 、Why does the engine vibrate so much after refueling

What is the reason why the engine of the car's refueling door is rattling?

1. There is a buzzing sound when the car refueling door. What is the reason for the buzzing of the car stepping on the accelerator? The reason for the buzzing of the vehicle refueling door is: excessive engine carbon accumulation, poor gasoline filtration, gasoline quality problems, aging spark plugs, engine failure, cylinder failure.

2. The reasons for the buzzing sound of the engine refueling door are as follows: too much carbon accumulation, including too much carbon accumulation in the engine, throttle valve, spark plug, etc. The filtration is not good. It is often encountered that the air filter is too dirty; the purity of gasoline is not enough to form carbon inside the machine.

3. Gearbox problem. The buzzing sound when accelerating is not always caused by the engine. It may also be caused by the wear of the gearbox bearing and the reduction of lubricant, resulting in friction.

4. The reason for the buzzing of the refueling door engine may be excessive carbon accumulation, poor filtration, insufficient purity of gasoline, aging spark plugs, engine problems, cylinder problems and idling problems.

5. Common abnormal noise in cars: abnormal noise of the transmission. There was a strange sound when idling, but the one that stepped on the clutch pedal disappeared. The bearing of the transmission was proved to be worn out. There is an abnormal sound in the engine room. It is common for engine vibration to make sounds, which is also a normal phenomenon.

6. The reason for the buzzing when the refueling door of the car engine is: 1. The oil is not fully lubricated to the parts of the engine. After a period of operation, the new oil can be evenly lubricated to the parts of the engine.

When refueling, the engine has a rattling sound, is it normal?

1. When refueling It is an abnormal phenomenon that there is an abnormal sound of the engine. The reasons and solutions for the abnormal sound of the engine when refueling are as follows: the sound made by the valve. At this time, you should go to the relevant maintenance department in time to replace the damaged valve parts.

2. It is normal for the engine to make a strange sound of "da-da-da-da" when refueling. Cause: 1) The gap between the piston and the cylinder wall is too large. 2) Poor lubrication of the cylinder wall. 3) Check and judge.

3. Therefore, it is normal to make these two mixed sounds when the engine is working. Secondly, if there is a sound different from this mixed sound when the engine is working, there is a high probability that there is a problem. In this case, it is necessary to use a stethoscope to carefully identify the location of this abnormal sound.

4. If the cold car starts refueling, the sound of the engine is louder than that of the hot car. This kind of sound sounds uniform and soft and not harsh, which is normal.

Does the engine fault light turn on and shake after refueling?

1. The engine fault light and the car shake may be caused by the lack of cylinder in the engine, or it may be caused by excessive carbon accumulation in the air intake system. Or there is a problem in the ignition system. Under normal circumstances, if the fault indicator light on the car combination instrument lights up, it means that there is an abnormality or fault in a component referred to by the fault indicator light.

2. The specific analysis is as follows; sensor problems; the sensors mentioned here include water temperature, crankshaft position, air flow, intake temperature, oxygen sensor, etc. When these sensors are damaged, poor contact or the signal is interrupted, the ECU of the car cannot accurately obtain the engine data. At this time It will cause the engine fault light to light up.

3. The reasons why the oil fault light is on and the engine shakes are: the engine mixture combustion is poor, and the fuel supply pressure is abnormal, causing the engine fault light to turn on and the car shake.When the engine fault light is on and the vehicle begins to shake, stop immediately and call the trailer for rescue.

Why does the engine vibrate greatly after refueling

If you don't pay attention to maintenance, it may be caused by excessive carbon accumulation of the machine (too much carbon accumulation of the engine, excessive carbon accumulation of throttle valve, excessive carbon accumulation of spark plug, etc.). Go to the repair shop for cleaning That's it. It may also be that the filter is not smooth (the most common is that the air filter is too dirty) and you can go to the repair shop for cleaning or replacement.

There are several reasons why the engine shakes when refueling: Poor ignition: When the car travels to a certain mileage, the ignition capacity of the spark plug will decrease. In the process of acceleration, the spark plug will jump very weakly, which will cause poor combustion and shaking. Remove and check. If the electrode turns black and wet, replace the electrode.

The main reason for the failure is the increase in carbon accumulation in the throttle valve, intake duct, valve and other parts. Some gasoline is adsorbed when the car is cooled. When the car is hot, these gasolines evaporate, which will cause the mixture to be too thick when the engine is idling, resulting in unstable idling of the hot car.

Most of the vibrations are made of foot glue. Although the engine body will indeed wear a little with the increase of years of use, and the various matching accuracy inside the engine will be reduced, this is actually far from the level that will cause obvious vibration. The engine vibration intensifies, and in most cases, it is a problem with the foot glue.