What to Do When White Smoke Comes from the Engine Compartment?

[AbelLynn]

Solutions for white smoke coming from the engine compartment are as follows: 1. Check the fuel tank: If the exhaust pipe emits a large amount of water vapor or white smoke while the engine is running, inspect the fuel tank for water accumulation, check if the cylinder head gasket is damaged, if there are cracks in the cylinder block, and if the cylinder liner sealing ring is in good condition. 2. Normal phenomenon: When a car parked in winter or during the rainy season is started for the first time, white smoke from the exhaust is often visible. Once the engine temperature rises, the white smoke will disappear, and this condition does not require repair. If the exhaust pipe emits black smoke after the engine temperature rises, it indicates that the cylinder pressure is too low or certain cylinders are not working, and inspection and troubleshooting are necessary. 3. Friction: The movement friction between the cylinder liner and piston, main bearing shells, connecting rod bearing shells, and crankshaft journal can cause white smoke due to lack of engine oil, leading to high surface temperatures of the moving parts, resulting in surface scoring or scratching (cylinder scuffing or bearing seizure).