What are the inspection items at checkpoints?

Is it necessary to warm up the car every time it starts?

It is not necessary to warm up the car every time it starts. Here is some relevant information about warming up the car: From the perspective of the engine: In terms of the engine, modern engines are all fuel-injected engines, so warming up is no longer required. However, from the standpoint of car maintenance and prolonging the car's lifespan, warming up the car appropriately can have certain benefits. Reasons for warming up the car: When a car is parked for a long time, all the various fluids in the car flow to the oil pan due to Earth's gravity. If you drive directly at this time, the car's components will experience severe wear because they are not fully lubricated. In winter, the cold weather naturally reduces the fluidity of the engine oil. If you drive directly or turn on the air conditioning at this time, the wear on the engine will be more severe, and over time, it will reduce the engine's lifespan.

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What to Do When the Car Chassis is Scraped and Leaking Water?

If the car chassis is scraped and leaking water, this situation should be taken seriously, and you should immediately go to a repair shop for inspection. The damaged parts causing the oil leakage should be analyzed, such as the engine oil filter, oil pan gasket, damaged sealing ring, or front and rear crankshaft oil seals. The reasons for water dripping from the car chassis can be divided into two situations: Normal car water leakage after turning on the air conditioning: Just like household air conditioners have a condensate drain pipe, cars also produce condensate water when the air conditioning is on. Leakage of antifreeze or windshield washer fluid causing water leakage: If the water is white and odorless, it indicates normal air conditioning condensate. However, if the water is of other colors, such as the common yellow-green, pink, or orange of antifreeze, it may indicate a different issue.

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How many years can a car battery with auto start-stop generally last?

Under normal circumstances, the service life of an auto start-stop battery is around 3-4 years. Symptoms of a damaged car battery are as follows: 1. Starting: The most noticeable phenomenon is the feedback when starting the car. If starting becomes very difficult, it is largely due to battery aging. However, there are many other factors that can cause starting difficulties, such as severe carbon buildup and abnormal spark plugs, so it is necessary to consider other conditions as well. 2. Horn: If the car has difficulty starting and the horn is not as loud as before, it is likely that the battery has aged and needs to be replaced promptly. Additionally, the car's headlights will be affected to some extent, causing them to dim. 3. Battery warning light: Another symptom is the battery warning light, which is the most intuitive indicator. This warning light specifically reflects whether there is an issue with the battery. When the battery warning light comes on, it indicates an abnormality, and it is necessary to promptly visit an auto repair shop for inspection.

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What Causes Vehicle Body Vibration at Speeds of 80 to 100?

Vehicle body vibration at speeds of 80 to 100 is often caused by severe engine carbon deposits or similar issues. Severe Engine Carbon Deposits: Severe engine carbon deposits are one of the most common reasons for vehicle vibration, typically due to excessive carbon buildup in the fuel injectors or a dirty throttle body. Excessive carbon deposits inside the engine can absorb the gasoline sprayed during cold starts, leading to an overly lean air-fuel mixture and difficulty starting. Users should clean the fuel system and check the idle control valve for carbon buildup, which should be cleaned if necessary. Ignition System Issues: Ignition system problems can also cause such symptoms. It is advisable to inspect the condition of the spark plugs, high-voltage wires, and ignition coils. Poor performance of the ignition system or improper spark plug firing can lead to these issues. Check if the spark plugs are excessively carbon-fouled and replace them if necessary.

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What Causes Car Tires to Become Hot to the Touch?

The reason car tires may become hot to the touch could be due to the vehicle traveling at high speeds, which increases the heat generated during braking, leading to a rise in tire temperature. Overview of Vehicle Speed: Vehicle speed refers to the distance a car travels per unit of time, commonly referred to as speed, with units typically expressed in kilometers per hour or meters per second. Vehicle speed is one of the three key parameters used to describe traffic flow and holds significant importance in traffic flow theory research. Classification of Vehicle Speed: Vehicle speed can also broadly refer to motor vehicle speed. To accommodate different applications, vehicle speed is mainly categorized into spot speed, running speed, and design speed. Spot speed is the instantaneous speed of a vehicle passing a specific point on the road. Design speed is the speed established to determine the design indicators of various geometric elements of a road and ensure their coordination.

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What Should Be Noted When Driving on Mountain Roads?

Mountain roads have complex conditions and are high-risk areas for traffic accidents, requiring extra attention. Here are some precautions for driving on mountain roads: Use lower gears when going uphill: When driving on mountain roads, you will inevitably encounter uphill sections. For manual transmission vehicles, it is important to use lower gears when going uphill, as this allows the engine to deliver maximum torque more effectively, making the climb easier. Automatic transmission vehicles can also be shifted into manual mode. Maintain speed and distance when driving on mountain roads: When driving on mountain roads, due to poor visibility around curves, avoid driving too fast. Drive slowly and maintain a safe distance from the vehicle ahead. Also, be aware of animals that might suddenly dart onto the road. Avoid swerving blindly, as this can easily lead to a rollover or falling off a cliff. If you cannot avoid a collision, it is better to hit the obstacle than to risk a fatal accident.

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What are the inspection items at checkpoints?

Is it necessary to warm up the car every time it starts?

What to Do When the Car Chassis is Scraped and Leaking Water?

How many years can a car battery with auto start-stop generally last?

What Causes Vehicle Body Vibration at Speeds of 80 to 100?

What Causes Car Tires to Become Hot to the Touch?

What Should Be Noted When Driving on Mountain Roads?

What Does the Gasoline Number Represent?

Where is the Intake Manifold Located?

Is It Normal for Car Remote Window Buttons to Be Hard to Press?

What does line mean?