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What Causes Severe Vibration When the Air Conditioner is Turned On?

1 Answers

MorganMarie

07/25/25 9:48am

Severe vibration when the air conditioner is turned on may be caused by three main reasons. Below is an introduction to the possible causes of air conditioner vibration: 1. Faulty Air Conditioner Acceleration Device: Normally, when the air conditioner is turned on, the idle speed should increase by 200-300 RPM. If this acceleration device is damaged, severe vibration occurs. The acceleration device is essentially the idle speed solenoid valve, which may also become stuck and can be resolved by cleaning. 2. Throttle Body Carbon Buildup: Carbon buildup in the throttle body can cause the engine to struggle or barely manage to drive the compressor, leading to idle vibration. The throttle body needs to be cleaned. If the driving environment is harsh, it's best to clean it regularly, recommended every 10,000 kilometers. 3. Engine Mount Collapse or Damage: The engine's balance is disrupted, and turning on the compressor may reach a resonance frequency, intensifying the vibration.

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Why does the car not cool at idle but works normally while driving?

Car not cooling at idle but working normally while driving can be attributed to the following reasons: 1. Proportional relationship: The engine speed and the car air conditioning compressor speed are proportionally related. When idling, due to the low speed, the car air conditioning compressor speed is correspondingly low. At this time, the low pressure in the air conditioning system will be higher, the expansion valve opening will be smaller, and the flow into the evaporator will also be smaller, resulting in less heat exchange in the evaporator. The direct manifestation is that you will feel the air conditioning is not cooling or the cooling effect is poor. 2. Cooling effect: When accelerating, the speed increases, the low pressure decreases, the expansion valve opening increases, the flow increases, the heat exchange in the evaporator increases, and the cooling effect improves.

Is driving at 120 km/h on a highway with a speed limit of 100 km/h considered speeding?

If the highway speed limit is 100 km/h and the driving speed reaches 120 km/h, it constitutes a 20% speeding violation, punishable by a 200 yuan fine and 3 penalty points. Below is an introduction to highway speed limits: 1. Maximum speed: The maximum speed shall not exceed 120 km/h, and the minimum speed shall not be lower than 60 km/h. On highways, the maximum speed for small passenger vehicles shall not exceed 120 km/h, other motor vehicles shall not exceed 100 km/h, and motorcycles shall not exceed 80 km/h. 2. Minimum speed: When there are 2 lanes in the same direction, the minimum speed for the left lane is 100 km/h; when there are 3 or more lanes in the same direction, the minimum speed for the leftmost lane is 110 km/h, and the minimum speed for the middle lane is 90 km/h.

How many kilograms should the cylinder head screws be tightened to?

Cylinder screws should be tightened to 8-9 kilograms. Below is relevant information about cylinders: 1. Single-acting cylinder: It has a piston rod on only one end. Compressed air is supplied to one side of the piston to generate pressure, which pushes the piston to extend and produce thrust. It returns via spring force or its own weight. 2. Double-acting cylinder: Compressed air is alternately supplied to both sides of the piston, generating output force in one or two directions. 3. Diaphragm cylinder: Uses a diaphragm instead of a piston, producing output force in only one direction and resetting via spring. It has good sealing performance but a short stroke. 4. Impact cylinder: This is a new type of component. It converts the pressure energy of compressed gas into the kinetic energy of high-speed piston movement (10-20 meters/second) to perform work. The impact cylinder features a middle cover with a nozzle and a drain port.

How to Increase the Speed of a New National Standard 48V 350W Motor?

To modify three things; the motor, controller, and battery. The specific modifications are as follows; 1. Unlock the speed limit; Do not turn on the key, first hold the brake handle, while adjusting the throttle to the maximum position, then turn on the key switch, let the throttle return to its original position, and then turn to the maximum position again, repeat this three times, the last time hold for five to eight seconds, and it can be unlocked. 2. Add a battery in series to increase the voltage; Under the rated voltage, the motor is generally under constant torque speed regulation, and the voltage output by the controller generally does not exceed the rated voltage, and the motor can normally only work under the rated voltage, but this does not mean that the motor really cannot work under overvoltage.

What are C-segment and B-segment cars?

Here are the detailed introductions of C-segment and B-segment cars: 1. C-segment cars: Also known as mid-size luxury cars, with a wheelbase of around 3 meters and engine displacement between 2.0 and 3.0 liters. The most common C-segment cars include the Audi A6, BMW 5 Series, and Mercedes-Benz E-Class. 2. B-segment cars: Referred to as mid-size cars, models like the Magotan, Passat, Camry, Accord, BMW 3 Series, Audi A4, etc., with a wheelbase of approximately 2.7 to 2.9 meters and engine displacement between 1.4 and 2.5 liters. Note: C-segment cars typically have an engine displacement of 2.3-3.0L and a wheelbase between 2600-2800mm; B-segment cars usually have an engine displacement of 1.6-2.4L and a wheelbase between 2450-2600mm.

Why is it not recommended to buy the Song Pro?

Song Pro has relatively loud noise and high fuel consumption, with weak power. Here is more relevant information: 1. Weak power: The BYD Song Pro is equipped with a 1.5T turbocharged engine across the entire lineup, with a maximum horsepower of 160 and a peak torque of 245 Nm. Such power is indeed somewhat insufficient for an SUV, especially during high-speed overtaking or when fully loaded, giving a feeling of 'a small horse pulling a big cart.' Of course, it is sufficient for daily use. 2. Relatively loud noise: The BYD Song Pro has good noise control at low speeds, but once it reaches high speeds or drives on unpaved roads, various engine noises, tire noises, and wind noises will enter the cabin. The severity of the noise is not too high, and it can be tolerated by slightly turning up the music volume.

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