Car Cooling Fan Not Rotating
2 Answers
Car Cooling Fan Not Rotating The reasons why the car cooling fan does not rotate are as follows: 1. Clogged air filter. The function of the air filter is to prevent dust from entering the car. After prolonged use, the air filter may accumulate dirt, develop odors, or even become clogged. 2. Fan relay failure. If the coolant temperature meets the requirements but the cooling fan still does not rotate, it may be due to a faulty relay in the cooling fan. Relay damage is generally caused by poor line contact. 3. Faulty temperature control switch. Most cars today use cooling fans that operate via electronic temperature control. The cooling fan will only function normally when the coolant temperature reaches the required level.
I've been driving for 20 years and often encounter issues with the cooling fan not working—never ignore this. There are several main possible causes: The simplest is a blown fuse; the fuse for the electric cooling fan is usually in the fuse box in the engine compartment—check the manual for its location and try replacing it. The fan motor itself might be faulty, such as a seized bearing or disconnected wiring. The temperature sensor or relay could also fail, preventing the fan from receiving a signal to start. Once the fan stops working, the water temperature rises quickly, leading to poor cooling and potential engine overheating or cylinder damage, which can be extremely costly to repair. Handling suggestions: After parking, touch the radiator—if it's scalding hot, don't drive further. First, check the fuse and wiring connections; tightening any loose connections might solve the problem. If the issue persists, take it to a professional repair shop immediately—don’t attempt to disassemble it yourself to avoid damaging the electrical system. During regular maintenance, ask the mechanic to test the fan’s lifespan—preventive measures are safer and more cost-effective.