What Are the Reasons for High Car Engine Temperature?
3 Answers
Car engine temperature can become too high due to the following reasons: 1. The cooling fan is not working, as it is controlled by the temperature sensor; 2. Insufficient coolant, as vehicles require antifreeze, water, or distilled water as a temporary substitute throughout the year; 3. A faulty thermostat, which regulates the engine temperature by opening accurately based on the coolant temperature when there is a temperature difference on both sides; 4. A clogged radiator; 5. A malfunctioning water pump; 6. Cylinder damage, where the combustion chamber mixes with the coolant passage, leading to water or white smoke discharge from the exhaust pipe, causing frequent coolant loss; 7. Incorrect ignition timing (adjustable with a timing light) and excessive oil pressure.
Oh, I've encountered the issue of overheating coolant several times, it's a common problem with older cars. The most frequent cause is insufficient coolant, possibly due to leaks or evaporation - you need to check the radiator and hoses for any seepage. A clogged radiator is another culprit, as accumulated dust and debris impair heat dissipation. If the cooling fan isn't working (due to wiring issues or motor failure), the temperature will naturally spike. A stuck thermostat that fails to open when cooling is needed will also cause overheating. An aging water pump that's leaking can't properly circulate coolant. Internal engine problems like a blown head gasket allowing coolant to mix with engine oil will abnormally raise temperatures. This happens especially during summer road trips - my advice is to pull over immediately if the temperature rises, don't force it or you'll risk engine failure. Pop the hood to check the radiator, add some distilled water as emergency measure, then head straight to the repair shop - safety first.
Man, high engine temperature is really annoying. I ran into this issue last week. The main problem could be a leak in the cooling system, like cracked hoses or loose clamps causing coolant loss. If the radiator core is clogged with poplar catkins and dust, heat can't dissipate. A broken water pump stops coolant circulation, making the engine overheat. If the fan belt is loose or not spinning, especially when AC is on, overheating is likely. Also, a faulty thermostat switch might send wrong signals preventing the fan from starting. Improper modifications, like wrong antifreeze ratio, can cause trouble too. I get nervous when the temperature gauge turns red - first turn off AC to reduce load, open windows for ventilation. Find a safe spot to pull over, check coolant level and top up with distilled water temporarily. Avoid prolonged idling and head to a repair shop ASAP to check wiring and components before minor issues escalate.
