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What Causes Severe Vibration When the Air Conditioner is On?

1 Answers

Stella

07/30/25 7:05am

Severe vibration when the air conditioner is on may be caused by a malfunctioning air conditioning speed-up device, carbon buildup in the throttle body, or a collapsed or damaged engine mount. Check if the air conditioning speed-up device is malfunctioning or broken. Normally, when the air conditioner is turned on, the idle speed should increase by 200 to 300 RPM. If this speed-up device is faulty, it will cause noticeable vibration. This speed-up device is essentially the idle speed solenoid valve, which might be stuck—cleaning it could resolve the issue. Carbon buildup in the throttle body can make the engine struggle to drive the compressor, leading to idle vibration. The throttle body should be cleaned, and if driving conditions are harsh, regular cleaning is recommended—preferably every 10,000 kilometers.

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What maintenance is required for a vehicle at 40,000 kilometers?

When a car has traveled 40,000 kilometers, it generally requires a major maintenance service. The specific maintenance items are as follows: 1. Engine oil and oil filter: These must be replaced and are required for every maintenance service. 2. Air filter and cabin air filter: These should be inspected first to determine if replacement is necessary. If they are not severely dirty, cleaning them may suffice for continued use. If they are heavily soiled, they must be replaced promptly. 3. Fuel filter: Many vehicle models require the fuel filter to be replaced at 40,000 kilometers. 4. Key inspection of various fluids. 5. Battery: For most vehicle models, the battery's lifespan is typically compromised after 40,000 kilometers and should be replaced in time. 6. Spark plugs. 7. Brake pads and tires: These should be inspected, but replacement is usually unnecessary at 40,000 kilometers. However, if any abnormalities are detected, they should be replaced promptly.

How to Maintain a New Car Battery?

Maintenance methods for a new battery are as follows: 1. Regularly clean battery dust: Periodically clean dust and grease from the battery terminals and apply special grease to protect the wiring harness; 2. Regularly check the wiring: Periodically inspect battery accessories and connecting wires; 3. Minimize the use of electrical devices after turning off the car; 4. Observe and replace the battery: Inspect the car battery through the observation hole and replace it regularly; 5. Start the car periodically when not in use for a long time. The battery serves the following 4 purposes: 1. Provide starting current for the starter: Supplies starting current to the starter when starting the engine; 2. Assist the generator when overloaded: Helps the generator supply power to electrical devices when the generator is overloaded; 3. Power electrical devices: Supplies power to electrical devices when the engine is idling; 4. Protect equipment: Protects the electrical devices used in the car.

What to Do If the Car Still Rolls After Pulling the Handbrake?

Solutions for the car rolling after pulling the handbrake: You can tighten the handbrake cable. For manual transmission vehicles, you can press the clutch with your left foot, press the brake with your right foot, engage any forward gear, pull the handbrake, and then turn off the engine to use the traction of the gear to prevent rolling. For automatic transmission vehicles, press the brake, shift to P (Park), pull the handbrake, turn off the engine, and use the locking mechanism of the automatic transmission's P gear to prevent further rolling. More details are as follows: 1. If the handbrake suddenly fails or cannot hold during normal use, it can be very dangerous, especially on steep slopes where sudden failure poses a greater risk. 2. Automatic transmission models are easier to operate; when in a forward gear, holding the brake will prevent rolling, and quickly applying the throttle while releasing the brake ensures the power is sufficient to move the vehicle forward.

Reasons Why the Battery Won't Charge

Gasoline has a very low flash point and ignition point, with a flash point ranging from -50 to -20 degrees Celsius, and an ignition point only 3 to 6 degrees Celsius higher than the flash point. Below is relevant information: Gasoline Shelf Life: Gasoline has a shelf life of about three months, as its active components are highly volatile. Gasoline stored for too long will inevitably have reduced combustible components. After exceeding the shelf life, the quality of the gasoline will deteriorate. Car owners can assess the quality of the gasoline by examining its color, smelling its odor, and feeling its texture. Gasoline Storage Conditions: Prevent the anti-knock performance of gasoline from degrading. When a car is parked for an extended period, the octane rating of the gasoline will decrease due to the loss of light components and an increase in gum content, thereby reducing its anti-knock properties. Therefore, the gasoline tank should be tightly sealed and kept away from high temperatures.

Is it necessary to shift to neutral when parking?

It is not mandatory to shift to neutral when parking. For automatic transmission vehicles, when parking for an extended period, you should shift to P (Park) and engage the handbrake. If waiting at a red light for more than 30 seconds, you may shift to neutral and engage the handbrake. For stops under 30 seconds, it is recommended to remain in D (Drive) and simply apply the foot brake. For manual transmission vehicles during prolonged parking, shift to neutral and engage the handbrake. When stopped at a red light for over 30 seconds, shift to neutral and engage the handbrake; for shorter stops, it's advisable to stay in 1st gear while depressing both the clutch and foot brake. Neutral gear refers to the state where the vehicle's gearshift lever is not engaged in any forward or reverse gear, completely disconnecting the transmission from the drive wheels. In manual transmissions, neutral is the middle position, while in automatic transmissions it is marked as 'N'.

What brand is HILO tire?

HILO is a tire brand under Huaguang Tire, which belongs to Xingyuan Tire Group Co., Ltd. The company possesses comprehensive technical advantages, advanced production equipment, and a well-established brand reputation accumulated over the years, ensuring that Huaguang Tire maintains a relatively high quality level and enjoys a good reputation. Therefore, under normal usage, Huaguang tires are not prone to blowouts. More details are as follows: 1. The main characteristics of Huaguang tires are strong grip, high driving stability, excellent road feel, and rigid tire sidewalls that enhance cornering support, minimizing deformation during acceleration or braking for faster torque transmission. 2. However, Huaguang tires are not highly cost-effective, offer poor comfort, have low protection against sharp objects, and limited load capacity. From these features, it can be seen that Huaguang tires are more suitable for urban commuting and not ideal for driving on poor road conditions.

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