What is the reason why the fuel tank purrs after sagitar flameout?

Hello: Your question is about the sound of running water after your sagitar flameout. Let me give you an answer! When our car is running, the engine and exhaust pipe will generate high heat, which can be easily transferred to its fuel tank. This heat will increase the pressure of the gasoline vaporization tank. After starting, this pressure and gasoline vapor will enter the activated carbon tank through the pipeline for re-combustion to avoid air pollution. There will be some noise when the gas flows. In fact, this state has always existed only when other sounds are driving, so you don't have to worry about this phenomenon.

I hope the above answers can help you. thank you

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