What is the problem when the car temperature is too high?
2 Answers
Here are the reasons for the car temperature being too high: Insufficient coolant: Leakage and reduction of coolant can cause the water temperature to rise. At this time, check for any coolant leakage. If there is, repair the leaking parts as soon as possible. If there is no leakage, the corresponding coolant should be added in time. Problem with the cooling fan: The cooling fan can cause the water temperature to rise. When the vehicle is running at high speed, the heat generated cannot be transferred to the antifreeze in time, affecting heat dissipation, which leads to an increase in the antifreeze temperature and boiling. Damaged water pump: If the water pump in the engine cooling system malfunctions and does not rotate smoothly, the flow of coolant will be poor, causing the water temperature light to turn on and the coolant temperature to become too high.
An overheating car is definitely not something to take lightly. I remember encountering this issue last summer during a long-distance drive, and it almost left me stranded. The main causes usually stem from the cooling system—like a clogged radiator where thick layers of scale or willow catkins block airflow through the fins. It could also be a loose or broken fan belt preventing the fan from spinning, or a thermostat stuck in the closed position, cutting off coolant flow to the main circulation. Another possibility is a damaged water pump impeller failing to function. However, the most common culprit is coolant issues—either the level is too low or the fluid has degraded from prolonged use. Don’t underestimate overheating: continuing to drive could lead to engine seizure or even total failure. If this happens, pull over safely immediately, turn on the AC in recirculation mode, shut off the engine, and wait at least half an hour before inspecting. For prevention, regularly check fluid levels, replace coolant every two years, and clean the radiator before long trips—these steps can prevent 90% of such problems.
