Why is there a strong gasoline smell inside the car?

[McEverett]

The reasons for a strong gasoline smell inside the car: 1. Aging of the carbon canister rubber pipes; 2. Leakage in the gasoline pipes; 3. Residual gasoline during the disassembly and installation of the fuel pump. First, check if the engine is leaking oil or replace the spark plugs to inspect the fuel system, with a focus on the high-pressure components, such as the area around the fuel injectors. Additionally, excessive air pressure in the fuel tank can easily push open the fuel pump sealing ring. If there is a gasoline smell inside the cabin, it is highly likely that the fuel outlet pipe, return pipe, or the connection between the fuel pump and the pipes is loose or cracked. Immediate inspection and repair are necessary to avoid serious consequences. Generally, a gasoline smell during cold starts is normal, but if it persists during hot starts, it indicates relatively severe carbon buildup, requiring maintenance for removal.