What Causes a Car's Electric Fan to Keep Running?
1 Answers
Car electric fan keeps running due to reasons such as coolant temperature not reaching the required level, relay malfunction, or issues with the temperature control switch. Related explanations are as follows: Long-term lack of lubrication: Electric fan control method: Unlike engine-driven fans, car electric fans need to adjust their operation based on the coolant temperature. Some are controlled by the vehicle's ECU, while others operate via a thermistor switch. Different cars have varying electric fan control methods. Structure: Generally, the electric fan assembly includes the fan itself, bracket, temperature sensor, temperature control switch, relay, wiring harness, etc. If the car's electric fan fails to operate, troubleshooting can be conducted based on the above factors. Components: The engine consists of five major systems: cooling, lubrication, ignition, fuel supply, and starting system. Main components include the cylinder block, cylinder head, piston, piston pin, connecting rod, crankshaft, flywheel, etc. The working chamber of a reciprocating piston internal combustion engine is called the cylinder, with its inner surface being cylindrical. The piston moving reciprocally inside the cylinder is connected to one end of the connecting rod via the piston pin, while the other end of the connecting rod is linked to the crankshaft. The crankshaft is supported by bearings on the cylinder block and can rotate within them, forming the crank-connecting rod mechanism.
