What are the consequences if the car expansion tank cap fails to release pressure?
2 Answers
The failure of the radiator cap to release pressure will cause the radiator to malfunction, affecting the normal working performance of the engine. The radiator cap, also known as the pressure radiator cap, is installed on the car's radiator and is an important component of the car's cooling system. The radiator cap is equipped with a valve that generates pressure, helping to maintain the engine at an effective temperature. How the radiator works: When the car is running, the temperature of the radiator increases, and the pressure inside the radiator rises. When the pressure reaches a certain level, the pressure valve is pushed open, allowing the coolant to flow into the adjacent overflow tank. When the car stops running, the cooling system will draw the water back from the overflow tank. Precautions for radiator use: Never fill the car radiator with tap water, as prolonged use of tap water can cause rust or scale buildup in the radiator. This is a very common issue. Rust and scale can restrict the flow of antifreeze in the cooling system, reducing the radiator's heat dissipation performance and, in severe cases, damaging the engine.
As someone who frequently tinkers with cars, I know that if the expansion tank cap doesn't release pressure, the cooling system pressure can get trapped. This can cause pipes or radiator joints to crack, spraying coolant all over under the hood. In severe cases, the engine can overheat and warp, leading to repair costs of several thousand dollars. Moreover, while driving, the dashboard temperature warning will sound, requiring an immediate pull-over to check for coolant leaks. In daily car maintenance, I've encountered several fellow car enthusiasts who neglected this cap, leading to winter clogs and summer bursts. Remember to check the cap's seal every two years to avoid trouble. Also, when changing coolant, take the opportunity to clean debris around the tank to prevent faster corrosion.
