What Causes White Smoke from the Front of the Car?

2 Answers
LaIan
09/02/25 6:24am
The reasons for white smoke from the front of the car are: 1. Cracks in the cylinder block: The engine burns coolant, which may be due to cracks in the cylinder block or the cylinder head gasket. If this occurs, the cylinder block and gasket should be inspected. If cracks are found in the cylinder block, it should be replaced. 2. Coolant not replaced in time: The engine block temperature is too low. When the engine temperature rises, the white smoke gradually disappears, which is normal. Coolant needs to be replaced regularly. If not replaced for a long time, the freezing point of the coolant will rise and the boiling point will drop. Failure to replace the coolant for an extended period can affect the normal operation of the engine.
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McWyatt
09/14/25 8:25am
White smoke from the front of the car usually indicates a problem with the cooling system, similar to a burst water pipe. If coolant leaks out and comes into contact with hot engine components, it evaporates into thick white mist that looks like smoke. I encountered this often when I was younger. Once, while driving an old car on a long trip, smoke suddenly billowed from under the hood. I panicked and stopped immediately, only to find that a corroded radiator joint was leaking, nearly causing engine damage. Without regular maintenance, pipes or radiators can corrode easily, especially during hot summers. If this happens, don’t drive—turn off the engine, let it cool, and have it checked. Otherwise, engine overheating could lead to costly repairs. Regular maintenance, like checking coolant levels and replacing it periodically, can prevent many issues.
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