1. Cleaning the impurities in the cooling system: firstly, check whether the water inlet pipe expands due to scale or other impurities blocking the cooling system. Try cleaning the cooling system, including cleaning the water tank, radiator, etc. So as to prevent accumulated impurities from obstructing the water flow.
2. Check the water pump: Check whether the coolant flows normally through the water pump. If there is something wrong with the water pump, the coolant will not circulate, thus blocking the cooling pipe and causing flatulence.
3. Replace the water pipe: If it is confirmed that it is not the above problem, it is the water pipe itself. Consider replacing new water pipes to eliminate the possibility of aging or damage of water pipes.