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What is the Working Principle and Function of an Automotive Electric Fan?

2 Answers

LaMalachi

09/01/25 2:01am

Automotive electric fan working principle and functions are: 1. Working principle: The automotive electric fan is controlled by a thermostat. When the coolant temperature rises to the upper limit, the thermostat connects the power supply, and the fan starts working. When the temperature drops to the lower limit, the thermostat cuts off the power supply, and the fan stops working. 2. Functions: To cool the engine block and transmission, and to dissipate heat from the air conditioning condenser. The method for replacing an electric fan is: 1. Open the car's hood and remove the intake pipe located above the fan. 2. Use professional tools to unscrew the screws. 3. After all screws are removed, take the fan off the vehicle. 4. Correctly install the new fan onto the new fan bracket and securely fasten all four screws. 5. Start the engine to test if the fan operates normally. After confirming everything is correct, reinstall the intake pipe to its proper position.

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OEli

09/13/25 5:01am

As a seasoned driver who's handled many cars, I know the electric fan is crucial. Its principle is: when the car's computer detects high coolant temperature via the temperature sensor, it sends a signal to activate the fan. The fan's role is to dissipate engine heat through the radiator, especially during traffic jams or when idling. Without fan assistance, the engine could overheat, trigger warnings, or even stall. I recall once when my fan failed – coolant temperatures spiked on the highway, nearly causing engine damage, leading to costly repairs later. During maintenance, listen for the fan's startup sound – a normal whirring rotation. In summer, inspect the cooling system, ensuring fan blades are dust-free to prevent motor short circuits. Ultimately, the fan acts as the cooling system's guardian, ensuring driving safety.

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Is a Tire Scrapped if Punctured on the Sidewall?

Tire sidewall punctures can be repaired, depending on the following situations: 1. Tire sidewall damage: If the cords are not exposed and there is no air leakage, there is no safety issue, but it is best to repair the outer rubber protective layer to safeguard the cord layer. 2. Tire sidewall damage with exposed cords: If no more than three cords are broken and there is no air leakage, the outer rubber protective layer must still be repaired. 3. Tire sidewall damage with air leakage: If the puncture is within repairable limits, it can be fixed directly using a hot patch method. 4. Tire sidewall bulging: Cannot be repaired. Bulging occurs due to broken cords in the sidewall, so repair is not recommended—replacement is necessary. 5. Severe tire sidewall damage: If the puncture exceeds repairable limits or more than three cords are broken, repair is not advised, and the tire should be replaced immediately.

How to Distinguish Cylinders 1-6 in a Mercedes-Benz V6 Engine?

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Does driving through a waterlogged section affect the car?

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Baojun is a proprietary brand of the joint venture SAIC-GM-Wuling (SAIC + GM + Wuling), while Wuling Motors is a brand held by the state-owned enterprise Wuling Motors Co., Ltd. (the original Wuling) in Guangxi. SAIC-GM-Wuling is authorized to use the Wuling trademark. Here is an introduction to SAIC-GM-Wuling: 1. Technical Introduction: SAIC-GM-Wuling has a national-level technical center and a "Corporate Postdoctoral Research Station" approved by the Ministry of Personnel. It employs a group of expert professors as technical advisors and implements the C3P (CAD/CAE/CAM/PDM) automotive development technology system research project. It also operates in product development integration with the Pan Asia Technical Automotive Center, using General Motors' GVDP (Global Vehicle Development Process) and GMS (Global Manufacturing System) as primary methodologies. Emphasizing management innovation and teamwork, the company has achieved comprehensive improvements in technological innovation capabilities. 2. Vehicle Lineup: SAIC-GM-Wuling produces over 200 models across five major series, including micro commercial vehicles, micro vans, micro double-cab trucks, micro single-cab trucks, and micro passenger vehicles. It passed the national "3C" certification in 2003 and became the only micro vehicle manufacturer to receive the "AAA" national quality reputation rating in 2005.

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