What to Pay Attention to When Changing Tires to Avoid Being Ripped Off?

Should You Engage the Handbrake or Shift Gears First After Getting in the Car?

Driving precautions and the hazards of engaging the gear without releasing the handbrake are as follows: Driving Precautions: Whether it's a manual or automatic transmission, the most important thing when starting is to shift into gear first, then release the handbrake. The handbrake serves as the final safety measure; only after fully engaging the gear and before moving should you release the handbrake—this practice is very safe. When shifting gears, move quickly from P to D to avoid a reverse impact when passing through R, which is harmful to the transmission. Hazards of Engaging the Gear Without Releasing the Handbrake: If you engage the gear but do not release the handbrake, all the power output from the engine will be absorbed by the torque converter, causing its temperature to rise sharply and potentially burn out over time. For dual-clutch transmissions, engaging the gear without releasing the handbrake keeps the clutch friction plates in a semi-engaged state, which can lead to burning out the friction plates if prolonged, so it's necessary to start moving as soon as possible.

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What Causes the Click Sound When Starting the Car?

This sound is caused by friction between the starter pinion gear and the flywheel. It is necessary to inspect the starter one-way clutch, as damage to this component can lead to such phenomena. Below are other possible abnormal sounds and their causes when starting the car: High-pitched squealing: This kind of squeaky noise is caused by belt slippage, which could be due to insufficient tension from the tensioner pulley or the belt being stretched from prolonged use. For a normal belt and tensioner pulley, when twisting the belt by hand with slight force, the belt should not twist more than 90 degrees. If the belt can be twisted over 90 degrees with minimal effort, it indicates that the belt or tensioner pulley is loose. Ticking sound: This noise could be the sound of the engine's valve train closing. In an engine, the valve train is typically the noisiest component; this sound is produced when the intake and exhaust valves close, and it is usually audible after startup. Alternatively, it could be the sound of the spark plug firing. Metal grinding noise: This sound likely occurs because the vehicle has been parked for an extended period, causing the oil to drain into the oil pan. During the initial startup, components may not be adequately lubricated, resulting in metal grinding sounds, which should disappear once oil pressure builds up.

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Will Tire Pressure Drop on Its Own?

Tire pressure can drop on its own, which is why a tire pressure monitoring system is necessary to automatically and continuously monitor the tire pressure in real time, and to alert the driver in case of air leakage or low pressure, ensuring driving safety. Solutions for insufficient tire pressure include: If no visible damage is detected, simply inflate the tire to the normal pressure and reset the tire pressure system; If a puncture is found during inspection, promptly drive to a tire repair shop for a patch, then reinflate the tire; If the tire pressure warning persists after inflation without any punctures, it may be due to air leakage caused by a deformed wheel rim. It is recommended to inspect and replace the wheel rim. Precautions for inflating tires: Always use a pressure gauge to check the pressure to avoid overinflation, which could lead to tire blowout. After stopping, wait for the tires to cool down before inflating, as driving increases tire temperature and affects pressure. Inspect the valve stem. If the valve stem and core are not properly aligned, or if there are protrusions, indentations, or other defects, it may hinder inflation and pressure measurement. Ensure cleanliness during inflation. The air pumped into the tire should not contain moisture or oil to prevent deterioration and damage to the inner tube rubber.

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What to Pay Attention to When Selling a Scrapped Vehicle?

Key considerations when selling a scrapped vehicle include removing the license plates and using tools to erase the engine number and chassis number. Below is an introduction to relevant information about scrapped vehicles: 1. Vehicle Scrapping Process: After inspection confirms that the vehicle matches the license plate, documents, and records and meets scrapping conditions, the vehicle is sent to a designated location. The engine, cab, and other parts are processed for scrapping, and the supervising officer stamps the scrapping approval. The vehicle is then delivered to a nationally certified scrap car recycling company for dismantling. A technical inspection approval form is issued, and the scrapped vehicle's license plate and documents are collected. After verification, the vehicle's records are canceled, and a "Vehicle Scrapping Notice" is issued to the owner. The canceled vehicle records are stored separately for two years. 2. Hazards of Scrapped Vehicles: Influenced by profit, many owners often sell scrapped vehicles to car dealers, who offer higher prices to attract sellers. As a result, scrapped vehicles re-enter the market and reappear on roads. Traffic police authorities state that scrapped vehicles are referred to as "road killers" and mobile time bombs, posing numerous safety hazards during operation. Private handling of scrapped vehicles is not permitted by the state.

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What Causes Body Shaking After High-Speed Driving?

Vehicle shaking can be caused by throttle issues, fuel problems, or spark plug problems. Below are the specific reasons for vehicle shaking: Throttle Issues: The main cause of a dirty throttle is carbon buildup at the connection between the throttle valve plate shaft and the throttle body, leading to inaccurate throttle opening and resulting in idle shaking. The throttle can be cleaned. If shaking persists after cleaning, the throttle assembly may be damaged and require replacement. Fuel Problems: Poor-quality gasoline can result in poor fuel injector atomization, leading to incomplete combustion of the air-fuel mixture in the cylinder and causing idle shaking. It is recommended to use high-grade gasoline to clean the fuel system after finishing the current tank. Spark Plug Problems: If the spark plug fails to ignite, causing one or more cylinders to stop working, this can also lead to idle shaking. Check for cracks in the ceramic part of the spark plug and ensure the ignition module is functioning properly.

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Does stopping on the crosswalk at a red light count as running a red light?

Stopping a vehicle on the crosswalk does not count as running a red light. Running a red light refers to the act of a motor vehicle violating traffic signal instructions by crossing the stop line and continuing to move when the red light is on and prohibits passage. To determine a red-light violation, at least three pieces of photographic evidence are required: the vehicle has not left the stop line when the red light is on; the vehicle has passed through the intersection when the red light is on; the vehicle has crossed the line and continues to move forward when the red light is on. Article 26 of the "Road Traffic Safety Law": Traffic signals consist of red, green, and yellow lights. A red light indicates prohibition of passage, a green light indicates permission to pass, and a yellow light serves as a warning. Article 44: Motor vehicles passing through intersections shall do so in accordance with traffic signals, traffic signs, traffic markings, or the direction of traffic police. Article 2, Section 1, Clause 2 of the "Scoring Standards for Road Traffic Safety Violations" stipulates that driving a motor vehicle in violation of traffic signal instructions results in a deduction of 6 points. Ways to avoid running a red light: When there are arrow signal lights, follow the arrow lights; otherwise, follow the circular lights; When the red light is on, the front of the vehicle must not cross the stop line; When the yellow light is on, the front of the vehicle must not cross the stop line; When the green light just flashes, if you are close and moving fast, you should proceed, as stopping might be impossible and you may cross the stop line; if you are far away, moving slowly, or the intersection is congested, you should stop; When driving in the city, develop the habit of looking for traffic lights whenever you see a crosswalk or stop line at an intersection.

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What to Pay Attention to When Changing Tires to Avoid Being Ripped Off?

Should You Engage the Handbrake or Shift Gears First After Getting in the Car?

What Causes the Click Sound When Starting the Car?

Will Tire Pressure Drop on Its Own?

What to Pay Attention to When Selling a Scrapped Vehicle?

What Causes Body Shaking After High-Speed Driving?

Does stopping on the crosswalk at a red light count as running a red light?

Can Pop-up Headlight Cars Be Driven on the Road?

What Causes a Motorcycle to Have Poor Acceleration?

What is the width of each lane on the highway?

Which Lane Should a Motorcycle Stop in at a Traffic Light?