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What Causes the Radiator Fan Not to Spin?

2 Answers

GemmaLee

09/04/25 8:32am

The radiator fan not spinning may be due to a faulty temperature control switch. Here is relevant information about the car radiator fan: 1. Whether the fan is key-controlled: The radiator fan is directly connected to the battery, so as long as the battery has power and the engine temperature is high, it will continue to spin until the temperature drops. This is because the set values in the ignition-off state and driving state are different. 2. Driving temperature: When the engine is off, the fan starts working at 105 degrees and stops at 85 degrees. Upon restarting, it enters driving mode, where the fan stops working below 100 degrees. After turning off again, the temperature will certainly not reach 105 degrees, so the fan naturally won't operate.

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McCayden

09/17/25 2:32am

The car's radiator fan not spinning is a major hazard in my opinion. It could stem from several common issues: the most frequent being a burnt-out fan motor, or a malfunctioning temperature sensor. The sensor is responsible for monitoring the water temperature to activate the fan; if it fails, the fan stops. A faulty relay could also disrupt the signal, causing the fan to stop working. A blown fuse is another major culprit—check the engine compartment fuse box for quick troubleshooting by replacing the one labeled for the fan. Poor wiring connections, short circuits, or aging wires are also common, especially in older vehicles. The consequences of a non-spinning fan are severe: the engine could overheat, smoke, or even be ruined, making it particularly dangerous during long drives or hot weather. Always keep an eye on the temperature gauge, and if you notice anything unusual, stop and inspect immediately. My old car, which I've driven for over a decade, had a similar issue, and timely repairs saved me from a major overhaul.

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Do You Have to Retake All Items If One Fails in Subject 2?

Yes, if you fail one item in the Subject 2 driving test, you have to retake the entire subject. According to the current new driving test regulations, if any test item is not passed, the entire subject must be retaken. The specific contents of the Subject 2 test are as follows: 1. First Item: Reversing into a Garage - The examinee needs to find the correct reference points, reverse into the garage from one side, drive out to the other side, and then reverse in again from the other side. Requirements: Do not cross the lines on both sides and the rear of the car, and the front of the car must not be outside the garage. 2. Second Item: Parallel Parking - The examinee needs to drive the car sideways into the parking space and must engage and disengage the handbrake. Requirements: Do not cross the lines on both sides. 3. Third Item: Curve Driving - This is the simplest item. Just follow the reference points as instructed by the coach and drive through using the front of the car to trace the curb. Requirements: Do not cross the lines. 4. Fourth Item: Right-angle Turn - After identifying the reference points, turn the steering wheel sharply to pass. Requirements: Do not cross the lines. 5. Fifth Item: Hill Start and Stopping on a Slope - Pay special attention to the stopping position on the slope. If the position is not accurate, points will be deducted. When starting, find the half-clutch point to avoid stalling. Remember to engage and disengage the handbrake. Requirements: Pay attention to the front, rear, left, and right positions, and avoid rolling back or stalling.

When Will I Receive the Notification for Running a Red Light Violation?

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