What are the reasons for the smell of gasoline outside the car after parking?

[AddysonLee]

Here are the reasons for the smell of gasoline after parking: Reason one: If the gasoline smell only occurs when the engine is idling after parking, the engine condition needs to be checked. The possible cause is incomplete combustion. Reason two: The gasoline smell comes and goes, regardless of whether the car is cold or hot. This could be due to a loose fuel tank cap or aging and cracking of the carbon canister pipes, leading to gasoline vapor leakage. Reason three: The gasoline smell is persistent and strong. This indicates a gasoline leak, which requires immediate inspection and repair. The leak could be from the fuel pump's outlet or return pipes, or other connection points.