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Why does the car fan keep running for a few minutes after parking?

2 Answers

WyattLynn

07/28/25 8:06pm

Here are the reasons why the car fan keeps running for a few minutes after parking: 1. Poor radiator cooling: It may be caused by internal dirt in the radiator, which blocks the water channels and leads to poor circulation. 2. Thermostat or water pump issues: Problems with the thermostat or water pump can cause poor circulation. 3. Presence of debris: There may be a thick layer of cotton-like material between the radiator and the condenser, obstructing the fan's ability to cool the radiator and condenser. Here is some related information: 1. Car fan: Normally, the car fan runs at low speed because the airflow while driving is sufficient for cooling. Occasionally, it may run at high speed, which is normal. However, if it continuously runs at high speed and keeps running for a few minutes after parking and turning off the engine, it indicates a problem. 2. Precautions: Separate the radiator and the condenser, then rinse them with a car wash water gun or air gun. Be careful not to blow over the cooling fins of the condenser and radiator, as this will further hinder cooling.

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Lamar

08/12/25 12:56am

I've been driving for many years, and it's normal for the fan to keep running for a few minutes after parking. This is because the engine might still be very hot right after shutting off, and the fan needs to work to dissipate heat and protect it. This is controlled by the car's electronic control unit (ECU), which determines the fan's runtime based on data from temperature sensors. Especially after long drives in hot summers or being stuck in traffic, when the coolant temperature is high, this is more likely to occur. Don't worry unnecessarily, but if the fan runs for more than fifteen minutes or makes strange noises, it's time to check—it could be a faulty temperature sensor, a stuck relay, or a coolant leak. I recommend regularly checking the antifreeze level and fan components to ensure everything is in order. Developing the habit of waiting a moment after parking can help protect the engine and extend its lifespan.

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Common Types of Cars During the Republic of China Era

Here is an introduction to the common cars during the Republic of China era: 1. Ford Model T: When it comes to the Ford Model T, those familiar with automotive history will certainly recognize it. Produced by the Ford Motor Company starting in 1908, this lightweight family car was the world's first vehicle to use standardized parts and be assembled via mass production on an assembly line. It was relatively affordable, stylish, and fuel-efficient, consuming only about 7-8 liters per 100 kilometers. While such fuel efficiency may not seem impressive today, it was groundbreaking at the time, easily outperforming all competitors. For context, the average fuel consumption of a 1930 Citroën sedan was over 10 liters per 100 kilometers, while the 1931 domestically assembled Minsheng-brand truck in China averaged 30 liters per 100 kilometers (with a payload of just 1.8 tons). 2. Minsheng Model 75 Truck: China's automotive industry started late. In 1928, Marshal Zhang Xueliang, then in charge of Northeast China's military and political affairs, allocated 800,000 silver dollars for an attempt to manufacture cars. After three years of effort and with the help of foreign engineers, a light truck was assembled—its engine and all electrical components were imported. In 1932, the Shanxi Automobile Repair Factory produced a Shanxi-brand car, though all core components were imported. In 1936, the Hunan Machinery Factory rolled out the first domestically produced bus, labeled as 'domestic' but still assembled from imported parts. Until the founding of the People's Republic of China in 1949, not a single 'independently developed' car was produced. 3. Ford Cars: The 1927 Rolls-Royce Phantom I could reach speeds of up to 120 km/h but was prohibitively expensive; only one existed in China, owned by a foreigner. The 1929 Bentley Blower, capable of 160 km/h and considered the fastest in the world, was equally expensive and never made it to China during the Republic of China era. The only luxury car accessible to a very few Chinese was the Lincoln. The dominant car brands in the market were Ford, Chevrolet, and Citroën. In 1932, global car sales totaled 70,000 units, with Ford selling 30,000, Chevrolet and Citroën combined selling 20,000, and all other brands together accounting for the remaining 20,000.

What is the function of antifreeze in summer?

Antifreeze plays roles in corrosion prevention, evaporation resistance, and cooling heat dissipation during summer. The main functions of antifreeze are as follows: 1. Cooling function: Cooling is the basic function of antifreeze. When the engine is running, it generates a large amount of heat, with about 60% of this heat being dissipated into the surrounding space through the cooling system. 2. Antifreeze function: In winter, when temperatures are low, antifreeze is added to the engine coolant to lower the freezing point of water, ensuring the cooling system does not freeze in cold weather and allowing the car to continue operating. 3. Anti-corrosion function: The engine and its cooling system are made of metals such as copper, iron, aluminum, steel, and solder. These metals can corrode and rust over time when exposed to water at high temperatures. Antifreeze not only prevents corrosion to the engine cooling system but also has anti-corrosion and rust removal capabilities.

Is the Lexus UX engine imported?

Lexus UX engine is imported. The engine model for the hybrid version is M20AFXS, and for the gasoline version, it is M20AFKS. The Lexus UX offers a 2.0L naturally aspirated engine and a 2.0L hybrid system. The 2.0L naturally aspirated engine has a peak torque of 207nm, paired with a DirectShift CVT transmission that can simulate 10 speeds. The Lexus UX is the brand's first compact SUV, with body dimensions of 4494mm in length, 1840mm in width, and 1520mm in height, and a wheelbase of 2640mm. In terms of exterior design, the Lexus UX follows the family-style design, appearing very youthful and stylish. The front grille is notably large, covering almost the entire front face, with a blackened mesh pattern and distinctive styling, exuding a strong sporty vibe.

What is the starting RPM for a car?

For most family cars, the starting RPM is around 1000-1500. Below are the starting procedures for automatic transmission cars and manual transmission cars: Starting procedure for automatic transmission cars: After sitting in the driver's seat, press the start button to turn on the ACC light; press the start button again for the vehicle to perform a self-check; press the brake and the start button to ignite and start the engine; press the foot brake, shift to D gear, and release the handbrake. Starting procedure for manual transmission cars: After sitting in the driver's seat, press the clutch and turn the key to the ACC position, wait for about 3 to 5 seconds, then turn to the START position to ignite; press the clutch, shift to first gear, and release the handbrake.

Can Internal Personnel at the Vehicle Management Office Alter Test Results?

No, altering test results without authorization is illegal. Below is relevant information: Vehicle Management Office: The Vehicle Management Office, officially known as the Vehicle Administration Office, is primarily responsible for handling vehicle registration, modification, transfer, mortgage, and cancellation. Relevant Regulations: When processing vehicle registration, driver examinations, and licensing, the Vehicle Management Office must use a business process record form (hereinafter referred to as the "Process Record Form") to document the handling of vehicle registration and driver examinations/licensing. Upon completion of each task, the responsible personnel must sign the "Process Record Form." The supervisory or leadership personnel must note clear handling opinions on the "Process Record Form" when addressing issues reported by various positions. The "Process Record Form" is archived in the vehicle and driver records.

How to bleed the clutch slave cylinder after replacement on Baojun 560?

There are three methods to bleed the clutch slave cylinder on Baojun 560: 1. Gravity bleeding method. First, fill the brake fluid reservoir completely. The clutch shares the same reservoir with the brake system, typically located near the driver's side dashboard at the junction between the door and windshield. After filling, locate the bleeder screw on the clutch slave cylinder underneath the vehicle. Loosen the screw just enough to allow fluid flow without completely removing it. Observe the fluid flow for air bubbles. Continue until no bubbles emerge for about 3-5 minutes. Tighten the screw and repeatedly depress the clutch pedal until it feels firm. Test drive and repeat if necessary. Important: Maintain adequate brake fluid level in the reservoir to prevent air from re-entering the system. This method is suitable for single-person operation. 2. Two-person bleeding method. The procedure is similar. Fill the brake fluid reservoir completely. One person operates the clutch pedal inside the vehicle while another works at the slave cylinder. The pedal operator should pump the clutch several times and hold it down. Meanwhile, the assistant loosens the bleeder screw with a wrench (caution: avoid fluid spray to the face), then tightens it while the pedal operator releases and repeats pumping. If the pedal doesn't return, use your foot to pull it back up. Repeat until proper clutch operation is achieved. Important: Maintain fluid level by adding brake fluid as needed. 3. Pressure bleeding method. For vehicles with long clutch lines (e.g., buses) where conventional methods are ineffective, apply compressed air to pressurize the brake fluid reservoir (3-5 seconds maximum to avoid emptying the reservoir) while keeping the bleeder screw open. Repeat the process of adding fluid and pressurizing until all air is removed.

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