What to Do If Caught Driving Without License Plates by Traffic Police?

How to Check the Correct Side of a Tire?

Tire orientation can be determined by checking the markings on the sidewall of the tire. The side with the tire manufacturing date, also known as the DOT number, should be installed facing inward. Tires are circular elastic rubber products mounted on metal rims, designed to roll on the ground for various vehicles or machinery. They support the vehicle's weight, absorb external shocks, maintain contact with the road surface, and ensure the vehicle's driving performance. The functions of tires include: 1. Bearing the weight of the vehicle; 2. Ensuring good adhesion between the wheels and the road surface; 3. Enhancing the vehicle's traction, braking, and off-road capabilities; 4. Directly contacting the road surface and working with the vehicle's suspension to mitigate shocks during driving, ensuring a comfortable ride and smooth driving experience.

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What Causes Vehicle Body Vibration at High Speeds?

Vehicle body vibration at high speeds can be caused by: 1. Uneven brake disc surfaces with significant radial runout; 2. Rim deformation; 3. Improper tire pressure (too high or too low); 4. Large deviations in wheel alignment data; 5. Abnormal tire wear; 6. Tire dynamic imbalance; 7. Shock absorber failure; 8. Engine power issues. Solutions for vehicle body vibration at high speeds include: 1. Inspecting and adjusting front wheel alignment angles and toe-in; 2. Performing wheel dynamic balance checks; 3. Adjusting tire pressure or replacing tires; 4. Conducting driveshaft dynamic balance inspections; 5. Using high-quality engine oil; 6. Checking the engine ignition system.

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How to Solve Excessive Engine Noise?

Excessive engine noise can be resolved by: 1. Installing high-grade sound-absorbing foam materials on the engine cover to suppress vibrations caused by the hood; 2. Inspecting and replacing the intake and exhaust pipes if necessary; 3. Using heat-insulating pistons to increase the temperature of the combustion chamber walls, shorten the ignition delay period, and reduce combustion noise in direct-injection diesel engines with space-atomized combustion systems. The causes of excessive engine noise include: 1. Aging engine mounts; 2. Worn-out engine mounts; 3. Severe carbon buildup in the engine; 4. Faulty engine cylinders; 5. Poor lubrication; 6. Excessive wear between pistons and cylinder walls; 7. Engine overheating due to cooling system failure; 8. Blocked exhaust system, leaking or broken vacuum tubes; 9. Loose belts.

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What does 5w40 engine oil mean?

5w40 engine oil means: 1. 'w' stands for winter, indicating it's for winter use; 2. The number 5 before 'w' represents the viscosity at low temperatures - the smaller the number, the better the fluidity in cold conditions and stronger cold resistance; 3. 40 refers to the viscosity at 100°C - the higher the number, the greater the viscosity and better high-temperature resistance. Engine oil, also known as motor lubricant, functions to: 1. Lubricate and reduce friction; 2. Assist in cooling; 3. Seal and prevent leaks; 4. Prevent rust and corrosion; 5. Absorb shock and cushion impacts. The composition of engine oil includes: 1. Base oil: The main component that determines the fundamental properties of the lubricant; 2. Additives: These compensate for and improve any deficiencies in the base oil's performance.

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Where to Place Temporary License Plates?

Temporary license plates should be placed on the upper right corner of the front windshield and the upper left corner of the rear windshield of the vehicle, ensuring the position does not obstruct the driver's view to guarantee driving safety. Temporary license plates are provisional vehicle permits issued by the vehicle management department of the public security authorities for newly purchased vehicles before official registration, with usage limited by time and region. The required materials for applying for temporary license plates include: 1. Identification documents of the vehicle owner and the agent; 2. Proof of vehicle origin; 3. For domestically produced vehicles, the whole vehicle factory qualification certificate, and for imported vehicles, the import certificate; 4. Rubbing molds of the vehicle identification number and engine number.

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What are the reasons for the car sliding forward when the brakes fail?

Insufficient battery or fuel, locked steering wheel, electrical or electronic failures, and fuel system issues can all cause the car to slide forward when the brakes fail. Insufficient car battery or fuel: To check if the battery is low, turn the ignition key to the 'on' position (for push-start models, press the start button twice without pressing the brake). Turn on the headlights; if the light dims significantly or doesn't turn on, and the horn sounds weaker than usual or doesn't sound at all, the battery is likely low. If the fuel gauge shows below the red line, the car won't start either. Locked steering wheel preventing startup: Many cars have a basic anti-theft feature where removing the key without straightening the steering wheel or turning it activates the steering lock. This locks the steering column, preventing the wheel from moving and the car from starting. Electrical or electronic failures: Electrical failures include blown fuses, open high-voltage coils, broken low-voltage circuits, detached central ignition wires, leaking distributor rotors, or damaged spark plugs. Electronic failures mainly refer to malfunctions in the central computer control panel. Fuel system issues: Fuel system problems can occur in the fuel pump failure, clogged fuel lines, blocked fuel filters, carbon buildup on spark plugs, or damaged fuel injectors. If the car slides forward due to brake failure, immediately press the clutch pedal and shift into neutral. This disengages the engine power from the wheels, allowing you to brake normally and slowly pull over to the roadside. Then, turn off the engine and inspect the issue or call for a tow truck.

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What to Do If Caught Driving Without License Plates by Traffic Police?

How to Check the Correct Side of a Tire?

What Causes Vehicle Body Vibration at High Speeds?

How to Solve Excessive Engine Noise?

What does 5w40 engine oil mean?

Where to Place Temporary License Plates?

What are the reasons for the car sliding forward when the brakes fail?

How Far Can Out-of-Town Vehicles Enter Beijing's Ring Roads?

What are the latest traffic restrictions in Lanzhou in 2020?

What are the dates for the National Day free expressway period?

When does the highway become free on October 1st?