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Engine Cooling Fans – Needs To Be Working To Cool Your Engine
The design of new vehicles with smaller front grids and smaller space under the hood; has reinforced the need to force air flow. The fan system provides an efficient air flow and optimizes the heat exchange to the radiator. It is usually located at the front of the vehicle, either in front or behind the radiator.
On some late model vehicles, the cooling fan can change speed to increase or decrease cooling as needed. Some fans may have a low, medium and high speed range while others have additional speed settings. You may hear the fan running when you shut off the engine after driving. This is normal. But the fan should shut off after several minutes as the engine cools down.
Checking Engine Cooling Fans
Everything electrical is supported by a fuse. So, that if there is an electrical surge going towards a piece of electronic equipment; the fuse cuts the electric supply to that particular equipment saving it from destruction.
If the fan is not working even when the car is heating up; there might be a problem with the wiring. You need to inspect all the wiring leading into and out from the radiator fan. It is possible that a wire has worn out due to heat and needs replacement.
Faulty Temperature Sensor
The (ECU) is responsible for starting the radiator fan once the engine gets hot. The (ECU) receives information from the temperature sensor which signals the (ECU) to initiate the fan.
Fan Clutch Or Belt
The fan clutch is responsible for holding the fan to the engine and turning it. If this assembly burns, you would have to replace it with a new one. If your fan is still not working after you have tried all the above-mentioned suggestions; then a failing fan clutch could be the issue.
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