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List of contents of this article:

• 1, Vehicle starts, turn on the air conditioning engine abnormalSound
• 2 、Refueling door, turn on the air conditioner's sizzling, how to solve it
• 3, The reason why the air conditioner engine is loud in summer?
• 4, What is the reason for the loud noise of the engine when the car turns on the air conditioner

The vehicle starts, turns on the air conditioner engine makes abnormal noise

1. Causes The electromagnetic clutch of the compressor The sound of metal friction made when the bite amplitude of the instrument is too large. Solution: Repair the clutch to reduce the amplitude of the bite. The air conditioner belt is under too much force and the squeaking sound will only occur when the air conditioner is turned on to refuel.Because they are all normal operating phenomena, it is not serious.

2. The abnormal noise inside the air conditioner is often caused by the refrigerant in the system containing water or air. There will be a sound when the refrigerant expands, and the refrigerant can be replaced directly. Or there will be a strange sound if there is too much refrigerant. You can put a little. Common factors that cause abnormal noise in car air conditioners are: the electromagnetic clutch problem of the compressor is a common factor that causes abnormal noise in the compressor.

3. The throttle valve is dirty or stuck: After the air conditioner works, the compressor will also work with it, and the compressor is driven by the engine. Therefore, the load of the engine will increase after turning on the air conditioner, which means that the engine needs to increase the opening of the throttle valve to increase the air intake.

Refueling door, turn on the air conditioner, how to solve it

1. Solution: It is also possible that there is too much carbon accumulation or poor fuel quality, resulting in a decrease in engine power, and the noise of stepping on the accelerator at low speed is relatively high. It is a very dull engine noise, and the throttle nozzle needs to be cleaned. It is recommended to increase the fuel of the brand gas station. Reason: The air conditioner belt is not tight enough, resulting in slippage.

2. The solution to the squeaky air conditioner in the car is as follows: Adjust the position bolt of the compressor: The pulley of the air conditioner slips with the belt, and will make a sharp friction sound in the process of slipping. Check whether there is oil on the belt. If it is oil, the belt will slip and need to be cleaned.

3. It is best to consciously amplify or reduce the sound, that is, use a spinner or other metal rod as a stethoscope to touch the sound part to amplify the sound, or use a single-cylinder fire to reduce the sound to meet the diagnostic needs. The auscultation site should be kept quiet to minimize the interference of human factors.

4. Diagnostic method: turn on the air conditioner when idling and hit the steering wheel. The engine speed does not increase, which can prove that it is this fault. Troubleshooting: Adjust, repair or replace the throttle position sensor.

5. Make sure that it is the sound in the pump.The sound is still the sound of the belt. If the belt is abnormal, it can be solved by tightening the belt or replacing the belt. If there is an abnormal sound in the pump, check the air conditioning pressure first. If the pressure is too high, there will be an abnormal sound. Just put some air conditioning refrigerant. If it still doesn't work, you have to replace the air conditioning pump [If there is a problem with the car, ask the car master.

The reason why the air conditioner engine is loud in summer?

[Pacific Automobile Network] The reasons why the car turns on the air conditioner engine is loud: the air conditioner pump makes abnormal noise, and there is a problem with any part of the electromagnetic clutch and the bearing in the air conditioner pump, which will cause the air conditioner pump to make abnormal noise.

Throttle valve blockage or blockage: After the air conditioner works, the compressor will also work, and the compressor is driven by the engine.Therefore, after turning on the air conditioner, the engine load will increase, which means that the engine should increase the opening and air intake of the throttle valve. When the throttle valve is carbonized or stuck, it will cause engine shaking and abnormal noise.

Dirty or stuck in the throttle valve: When the air conditioner is turned on, the engine needs to drive the compressor to work. Therefore, the throttlum needs to increase the opening to increase the air intake. However, when there is carbon accumulation or jamming inside the throttle valve, it will cause the engine to tremble, shake and make abnormal noise, especially when the air conditioner is turned on.

If there is a slight sound, it is normal. If the sound is too loud, it may be a failure of the compressor or pulley, and the noise will be obviously louder than usual. After we turned on the air conditioner, the loudest noise was made by the high-speed operation of the electronic fan. The soundproofed car did not sound so obvious in the car.

There are usually two sources when the car turns on the air conditioner, one is the sound of the blower in the car, and the other is the sound of the engine belt or compressor. When there is a problem with the electromagnetic clutch of the compressor, it will cause the compressor to make a sound.

[Pacific Automobile Network] The possible reasons for the noise of the air conditioner as soon as the car is turned on are: dirty or stuck; abnormal noise of the air conditioning pump; poor elasticity of the compressor transmission belt. The throttle valve is dirty and blocked or stuck.

What is the reason for the loud noise of the air conditioner engine

There are two main reasons for the abnormal noise of the air conditioning pump, electromagnetic clutch and the air conditioning pump bearing. The abnormal noise of the electromagnetic clutch is mainly due to the electromagnetic clutch. The gap caused by wearIn addition, the abnormal noise of air conditioning pump bearings is mainly due to the lack of lubricating oil. If the two problems are not solved in time, it will lead to the burning of the air conditioning pump and refrigeration work.

Generally, there are several reasons: abnormal noise from the air conditioner pump. If there is a problem with any part of the electromagnetic clutch and the bearing in the air conditioning pump, it will cause abnormal noise in the air conditioning pump. The abnormal noise of the electromagnetic clutch is mainly caused by the increase of the gap caused by the wear of the electromagnetic clutch; and the abnormal noise of the air conditioning pump bearing is mainly caused by the lack of lubricating oil.

The main reason for the noise of the air conditioner as soon as the car is turned on may be that the throttle valve is dirty or stuck, the air conditioner pump is abnormal, and the compressor drive belt is not elastic. The functions of car air conditioners include regulating the temperature in the car, regulating the humidity in the car, regulating the airflow, purifying the air, etc., which is an important guarantee for the air quality and comfort in the car.