Why Does the Car Engine Overheat?

1 Answers
Christian
07/30/25 7:28am
There are many reasons for a car engine overheating, most of which are caused by water pipe leakage or insufficient coolant. Common causes include: fan belt breakage, radiator or water pipe leakage, thermostat failure, and engine oil leakage. If the engine loses power while driving or produces severe knocking or piston slapping sounds, it is mostly due to engine overheating. Solutions for car engine overheating: 1. Touch the upper and lower water pipes to determine the fault by their temperature difference. If there is a significant temperature difference between the two pipes, it can be concluded that the thermostat is not working. If a replacement part is not immediately available, the thermostat can be temporarily removed as an emergency measure, but it must be replaced as soon as possible. 2. When the car engine is overheating, do not turn off the engine immediately. At this time, the pistons, cylinders, and crankshaft are in a state of high-temperature expansion. Turning off the engine may cause soft metal to peel off, and in some cases, even lead to piston seizure.
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