What to Do When There's Abnormal Noise While Accelerating?

What Causes Smoke and a Burning Smell from a Car Engine?

This situation is mainly caused by excessively high engine temperature, radiator failure, oil leakage, and friction of the clutch plates in the vehicle's transmission. Below is relevant information about car engines: 1. Introduction to Car Engines: A car engine is the device that provides power to the vehicle, serving as the heart of the car and determining its power, fuel efficiency, stability, and environmental friendliness. Depending on the power source, car engines can be classified into diesel engines, gasoline engines, electric vehicle motors, and hybrids, among others. 2. Structure of Car Engines: An engine consists of two major mechanisms—the crank-connecting rod mechanism and the valve train mechanism—as well as five major systems: cooling, lubrication, ignition, fuel supply, and starting systems. The main components include the cylinder block, cylinder head, piston, piston pin, connecting rod, crankshaft, and flywheel, among others.

5

2

Share

How much time is allocated for the 50-to-1 license plate selection?

Generally, the time allocated for selecting a license plate number ranges between 90 seconds to 3 minutes. Below is relevant information about license plates: 1. License plate colors: Blue represents ordinary small vehicles, yellow represents ordinary large vehicles, black is used for foreign investors in China or important figures, and green represents new energy vehicles. 2. License plate composition: A license plate number consists of the province abbreviation + city letter code + 5-digit plate number. The first character is a Chinese character representing the provincial-level administrative region where the vehicle is registered, and the second character is an English letter representing the prefecture-level administrative region where the vehicle is registered.

18

4

Share

Will the Motorcycle Test Be Canceled Due to Rain?

Motorcycle tests will not be canceled due to rain. Below is an introduction to motorcycle-related content: 1. Working Principle: When the pedal is pressed, the mechanism pressurizes the spring, causing the outer edge of the spring to lift and the friction plate to disengage from the pressure plate. At this point, the friction plate and flywheel are no longer connected, so even if the engine continues to run, power will not be transmitted to the transmission and wheels. This allows the rider to shift gears or stop without stalling the engine. 2. Power Transmission: When the crankshaft speed is low, the two friction plates do not contact the housing, preventing power transmission. At higher crankshaft speeds, centrifugal force causes the friction plates to move outward and engage with the housing, enabling power transmission.

18

1

Share

What does A/C mean?

A/C stands for aircondition, which means air conditioning. It can be understood as air control or air regulation. It achieves cooling or heating through different operation modes of the air conditioning compressor, so it has the dual meaning of cooling and heating. Usage method: Press to turn on the light, indicating that the compressor switch is turned on, and the air conditioning is set to cold air. Turn the leftmost knob to blue. When cooling is needed, the compressor works, and cold air can be blown out. Press again to turn off the light, indicating that the compressor switch is turned off. Even if the air conditioning is set to cold air (i.e., the leftmost knob is turned to blue) and cooling is needed, the compressor will not work, and no cold air will be blown out. Outside air will directly enter the car, providing natural wind. Function of car air conditioning: Car air conditioning is used to adjust and control the temperature, humidity, air cleanliness, and air flow inside the car cabin to the optimal state, providing passengers with a comfortable riding environment and reducing travel fatigue. It also creates good working conditions for the driver and plays an important role in ensuring safe driving as a ventilation device. It generally includes a refrigeration device, heating device, and ventilation device.

19

0

Share

How to Clean a Car Sunroof Sunshade?

Some car sunroof sunshades can be removed, allowing you to clean them in your preferred way. If removal is inconvenient, you can use foam cleaner for cleaning. If you prefer not to do it yourself, you can have it cleaned at a 4S shop. Below is additional information: 1. Avoid improper operation: Manual sunshades mainly consist of the shade cloth, pull rod, and a handle for opening and closing the sunshade. It is important to never pull the rod, as doing so can unbalance the sunshade system and may even render it inoperable. Electric sunshades primarily consist of the shade cloth and pull rod, and can be operated simply by using the control switch at the front of the vehicle. 2. Regular maintenance: Regular maintenance of the sunroof should not be overlooked. During daily use, pay special attention to ensure there are no obstacles on the roof that could hinder the sunroof's sliding motion before opening it. On bumpy roads, try to avoid using the sunroof to prevent damage to related components due to vibration. When closing the sunroof, make sure it has fully reached the closed position.

9

1

Share

Why is the car AC blowing strong but not cold?

Reasons why the car AC blows strong but not cold: 1. Compressor aging or damage: The cooling function of the AC mainly relies on the compressor. If the compressor belt is loose, aged, or damaged, only the blower will operate, blowing natural air instead of cold air. 2. Circulation mode: Check if the AC is in recirculation mode. The outside air mode brings hot air from outside into the car. 3. Air vents: Cold air tends to sink, so check if the AC vents are set to blow upwards. 4. Refrigerant: Too much or too little refrigerant affects cooling efficiency. Excessive refrigerant reduces heat dissipation, while insufficient refrigerant hampers cooling. 5. Clogged filter: Long-term use can accumulate dust on the filter, obstructing the flow of cold air into the car. 6. Water infiltration: If the desiccant bottle in the AC system absorbs too much moisture, the refrigerant's water content may freeze in small orifices, blocking refrigerant circulation.

13

4

Share

What to Do When There's Abnormal Noise While Accelerating?

What Causes Smoke and a Burning Smell from a Car Engine?

How much time is allocated for the 50-to-1 license plate selection?

Will the Motorcycle Test Be Canceled Due to Rain?

What does A/C mean?

How to Clean a Car Sunroof Sunshade?

Why is the car AC blowing strong but not cold?

What to Do When Car Doors Are Hard to Open or Close?

What Causes Water Dripping Above the Accelerator Pedal?

What kind of tape is generally used for automotive wiring harnesses?

What is the fuel consumption of the Wrangler 4xe?