What to Do If You Passed Subject Three but Failed Subject Four?

What are the methods to deal with a frozen fuel tank that prevents the engine from starting?

The methods to deal with a frozen fuel tank that prevents the engine from starting are: 1. Add hot water to the engine and preheat the cooling system; 2. Use an open flame to heat the oil pan. The fuel tank serves to store fuel, separate air bubbles, water, impurities, and sediments. Methods to prevent the fuel tank from freezing include: 1. Install a fuel tank heating wire; 2. Add antifreeze. The maintenance methods for the fuel tank are: 1. Regularly inspect the fuel tank, fuel lines, and joints for dents or oil leaks; 2. Check if the fuel tank bracket mounting screws are tightened; 3. Add fuel in a timely manner; 4. Clean the sediments inside the fuel tank; 5. Clean external stains on the fuel tank promptly.

16

4

Share

What does 0w20 mean for engine oil?

The meaning of 0w20 for engine oil is: 1. The letter 'w' stands for winter, indicating all-season oil; 2. The number before 'w' represents the viscosity of the oil at low temperatures, with a smaller number indicating better low-temperature fluidity; 3. The number after 'w' represents the standard kinematic viscosity at 100 degrees Celsius, categorized into 20, 30, 40, 50, and 60, with the viscosity standard affecting the oil's adhesion performance at high temperatures. The functions of engine oil include: 1. Lubricating pistons and cylinders to prevent part wear; 2. Assisting the radiator in cooling the engine; 3. Flushing out dirt produced by the engine; 4. Absorbing harmful substances on part surfaces to prevent rust and corrosion.

16

5

Share

What are the preparations for a 10,000-kilometer maintenance?

Car maintenance items at 10,000 kilometers are as follows: 1. Air filter: Proper installation of the air filter can reduce wear on parts such as cylinders, pistons, and piston rings. Generally, it should be cleaned every 5,000 kilometers, and the air filter must be replaced every 10,000 kilometers. 2. Oil filter: Proper installation of the oil filter can prevent impurities from mixing into the oil during the use of the internal combustion engine, avoiding wear on moving parts and oil passage blockages. The replacement cycle for engine oil and the oil filter is generally 5,000 kilometers. 3. Fuel filter: Proper installation of the fuel filter can prevent cylinder wear caused by impurities and moisture mixed into gasoline during storage, transportation, and refueling. To ensure good engine operation, the replacement cycle for the fuel filter is generally 20,000 kilometers or 1 year.

20

2

Share

What is the difference between inline and L4 engines?

The difference between inline and L4: Inline is a general term, while L4 is one type of inline engine. The specific differences are as follows: 1. Types of engine cylinders: They are divided into inline, V-type, horizontally opposed H-type, and the newly emerged W-type. 2. Inline engines are also called straight engines: All cylinders are arranged in a single plane, and the structure of the cylinder block and crankshaft is relatively simple. Advantages: Low manufacturing cost, high stability, good torque characteristics, high fuel economy, and a wide range of applications. Disadvantages: Low power. 3. The arrangement of the L4 engine is inline four-cylinder: The four cylinders are arranged in a straight line, and the more cylinders there are, the longer the entire cylinder block structure becomes. Advantages: L-type engines are smaller in size, more flexible in layout, highly stable in operation, and easy to maintain.

4

0

Share

How to Clean the Air Vents of a Car's Air Conditioning System?

Cleaning method for car air conditioning vents: Turn off the air conditioning cooling function, select the natural ventilation mode, and spray professional air conditioning cleaner into the air ducts through the car's air conditioning vents. After spraying the cleaner, let the air conditioning run in external circulation mode for 10 minutes to allow the cleaner to fully take effect. The cleaner will then flow out through the car's drainage outlet. Do not turn off the air conditioning at this point; continue running it until the air ducts are completely dry, indicating the cleaning process is complete. Below is related information: 1. Car air conditioning is used to adjust and control the temperature, humidity, air cleanliness, and airflow within the car cabin to optimal conditions, providing passengers with a comfortable environment, reducing travel fatigue, and creating favorable working conditions for the driver. It serves as an essential ventilation device for ensuring safe driving. 2. Car air conditioning generally includes a cooling device, heating device, and ventilation device.

6

1

Share

How to Turn on the Warm Air in the Sylphy?

The method to turn on the warm air in the Sylphy: 1. Press the knob with red and blue color buttons; 2. Wait for 5 to 10 minutes after ignition; 3. When the water temperature rises to the normal temperature, you can turn on the warm air. Taking the 2020 Sylphy as an example, its body dimensions are: length 4641mm, width 1815mm, height 1447mm, wheelbase 2712mm, trunk volume 560l, and fuel tank capacity 47l. The 2020 Sylphy is equipped with a 1.6L inline 4-cylinder naturally aspirated engine, with a maximum power of 90kw, maximum torque of 155nm, and maximum horsepower of 139ps.

17

0

Share

What to Do If You Passed Subject Three but Failed Subject Four?

What are the methods to deal with a frozen fuel tank that prevents the engine from starting?

What does 0w20 mean for engine oil?

What are the preparations for a 10,000-kilometer maintenance?

What is the difference between inline and L4 engines?

How to Clean the Air Vents of a Car's Air Conditioning System?

How to Turn on the Warm Air in the Sylphy?

What is the reason for the right window defroster door motor exceeding the upper limit?

Why is the license plate number of Xuzhou designated as Su C?

How Can Beginners Drive a Car Well?

Does replacing the horn on a new car affect the warranty?