The new sunshine car refueling rattle

You seem to be in this situation may be that the gasoline you add is not qualified, it is recommended that you change the gasoline to try it, if it still doesn't work, then I suggest that you check the repair routine as soon as possible, it may be that the knock sensor is broken.

Thank you for using, I hope mine can help you, it would be great if I could help you, Car Master specializes in serving car owners, I hope it can help you, thank you for using it again. [If you have a problem with the car, ask the car master.] 4S shop professional technician, 10 minutes to solve. 】

Most of the problems in your car are caused by the addition of inferior gasoline! It doesn't have much effect, use up this tank of gasoline, and refill the gasoline [If you have a problem with the car, ask the car master. 4S shop professional technician, 10 minutes to solve. 】

Hello car owners, this situation needs to be specifically determined what the noise is. The new car should still be within the warranty period, it is recommended that you go to 4S to claim maintenance, I hope it can help you, I wish you a happy life! [If you have a problem with the car, ask the car master.] 4S shop professional technician, 10 minutes to solve. 】

Hello It is recommended to add high grade gasoline to try [If you have a problem with the car, ask the car master. 4S shop professional technician, 10 minutes to solve. 】

Hello! Check your oil! I wish you a happy use of the car [If you have a problem with the car, ask the car master. 4S shop professional technician, 10 minutes to solve. 】

The engine oil is not [There is a problem with the car, ask the car master.] 4S shop professional technician, 10 minutes to solve. 】

Hello, it should be a call pole, the ignition time will appear early, and the quality of gasoline will also appear in this situation, your car should be a matter of gasoline, you burn the oil first, it will not respond to the car, just change the box, thank you [If you have a problem with the car, ask the car master. 4S shop professional technician, 10 minutes to solve. 】

What is the reason for the car to give oil to the clattering sound, it may be that the bottom guard plate under the engine is resonant, as long as the guard plate is fastened, or it may be that the three-way catalytic converter is broken, and the car will make a sound like sand when driving. The underbody guard on the car can act as a shock absorber. The engine and wheels are fixed to the bottom guard, and their vibrations resonate with the bottom plate at a certain frequency, which can cause a very uncomfortable feeling for the passengers in the car.

If the bottom guard is installed, this noise will be eliminated. When a car is driving on a highway, the friction between the wheels and the ground is directly proportional to the speed of the car. If the car has good bottom protection, the noise generated by the car during driving can be greatly reduced.

After the failure of the three-way catalytic converter on the car, it will cause the core of the three-way catalytic converter to be blocked, resulting in poor exhaust of the car, and the exhaust gas generated by the car can easily flow back into the engine. In general, three-way catalytic converters do not fail. Only the sound of external factors or excessive pressure caused by high temperature will cause damage to the three-way catalytic converter, and the car will make a clicking sound during driving.

If the voltage of the oxygen sensor before and after the Luyuan catalytic converter in Sanpants Town is the same, it means that the three-way catalytic converter is damaged, and you can also put your hand on the exhaust pipe to check; If you can't feel the airflow, the three-way catalytic converter is damaged. Millions of car purchase subsidies.

If the valve is loose, there will be an abnormal sound when the valve clearance is large.

On the issue of abnormal noise of automobiles, it is difficult for ordinary car owners to distinguish which ones are abnormal noises and which ones are reasonable abnormal noises. Only nearly 20% of the vehicles that went to the repair shop to detect abnormal noises really had problems. In the case of a turbocharged engine, there is a must be a difference between the sound and the sound of a naturally aspirated engine; Models with engine guards may also make noises due to friction; After some car owners come into contact with different cars, they can understand it very well and mistake the reasonable abnormal noise for a vehicle failure.

Therefore, learn to distinguish the abnormal noise of the car and avoid wasting time and energy.

How to identify the sound of a car:

In actual work, due to the limitations of working conditions, the sound of the car is very difficult to measure with special instruments, and the sound of the car can only be described and compared with the judgment of the sound in daily life. For example, the "rattle" sound caused by the dry friction of the bearing, and the "click" sound similar to the small hammer hitting the cement floor caused by the excessive valve clearance.

1. Correctly distinguish between normal and abnormal sounds.

The vibration of each mechanism in the work of the car will emit a variety of sounds, but the sound does not mean that the car is faulty, in order to avoid unnecessary disassembly, we must first distinguish between normal sound and abnormal noise. The normal vibration sound of each system component (such as the noise on the surface of the engine), the impact sound of the gear when shifting, the air intake sound and exhaust sound of using gas as the working source, and the gear meshing noise are all normal sounds. Abnormal noise (abnormal noise) can be divided into slight noise, general noise and malignant noise according to the impact on the performance of the car.

Slight noise, such as the flashover sound of high-voltage electric leakage, the slight loose sound of rolling bearings, etc., the general volume is small, the degree of wear of the parts is not large, and there is no significant change for a long time, and this kind of fault is not repaired.

3. When diagnosing abnormal noise, attention should be paid to creating good auscultation conditions and trying to eliminate the interference of other noises, so as not to affect the accuracy of judgment.

It is best to consciously amplify or reduce the sound, that is, use a screw or other metal rod as a stestological instrument to contact the sound part to amplify the sound, or use a single cylinder fire cut-off to reduce the sound to meet the diagnostic needs. The auscultation site should be kept quiet to minimize human interference.