What's the reason for engine water shortage without visible leakage?

[DeDaniela]

The reasons for engine water shortage without visible leakage are: 1. Cracks in the engine's water passages, causing coolant to enter the combustion chamber. If the engine burns coolant, white smoke will come out of the exhaust pipe. White smoke during hot weather indicates serious coolant burning; 2. The engine temperature becomes too high during operation, causing coolant to evaporate as steam; 3. Coolant leakage occurs in hidden locations that the owner hasn't noticed. The solution for engine water shortage without visible leakage is: Immediate inspection and repair at a 4S shop or repair shop is needed. If the cylinder block has cracks causing coolant to enter the combustion chamber, a new cylinder block needs to be replaced.