What are the reasons for high car water temperature?
2 Answers
The reasons for high car water temperature are: 1. Insufficient coolant: Coolant leakage or insufficient coolant can cause the engine water temperature to rise. Check the coolant level and add it to the appropriate level if necessary. Then, check the level again after a few days to see if it has dropped significantly. 2. Cooling fan failure: When the vehicle is running at high speed, the heat generated cannot be transferred to the antifreeze in time, affecting heat dissipation and causing the antifreeze temperature to rise, leading to boiling issues. 3. Water pump failure: Water pump failures include bearing seizure and impeller damage. Bearing seizure is relatively rare, while impeller damage is more common, such as impeller cracking or detachment from the pump shaft, which slows down the coolant circulation and can easily cause the engine to overheat.
Having driven for over twenty years, I know that high engine temperature is quite common, usually caused by a few main reasons. The most common is insufficient coolant, possibly due to leaks or evaporation—check the fluid level when driving and top it up if it's low. A dirty or clogged radiator is also a big issue, especially on dusty roads where cooling efficiency drops. If the fan doesn’t spin, especially at idle, the temperature rises quickly. A damaged water pump prevents fluid circulation and should be replaced. A thermostat stuck in the closed position traps heat, making things worse. I always advise friends to check regularly—spending a weekend glancing at the temperature gauge and cooling system can prevent costly repairs. If the engine overheats while driving, don’t push it; stop and check safely first. Otherwise, the engine could overheat to a crippled state, and repairs will hurt your wallet. Remember, prevention is better than cure.
