What Causes the Car to Always Overheat?
1 Answers
The reasons for frequent high-temperature alarms in a car are as follows: 1. Circuit failure causing the electronic cooling fan to stop working, reducing the radiator's heat dissipation capacity. 2. Check the operation of the electric fan. Unplug the electric fan's wiring harness and power it directly with a power line. 3. If the electric fan rotates, it indicates proper functioning; if not, it suggests damage, requiring inspection of the relay and its circuit. 4. If the fan rotates with intact and powered wiring, it indicates a damaged or failed relay. 5. If all the above checks are normal, it suggests a damaged temperature sensor or its probe. The hazards of high-temperature environments to cars are as follows: 1. When the car is running, high external temperatures slow down tire heat dissipation, making them prone to overheating and excessive pressure, leading to tire blowouts. The faster the speed, the more heat the tires generate, increasing the likelihood of blowouts. 2. The braking efficiency of the car decreases as the temperature rises. For hydraulically braked cars, brake fluid may experience vapor lock at high temperatures. 3. Under frequent braking conditions, brake fluid temperature can exceed 100°C, easily causing the rubber cup to expand and brake fluid vapor lock, leading to reduced braking efficiency and compromised driving safety.
