What could because a smell of petrol in a ford focus 99-04?

A smell of petrol in a Ford Focus from 1999 to 2004 could be caused by several issues, including a fuel leak from the fuel lines, a damaged fuel injector, or a faulty fuel pump. Additionally, a loose or damaged gas cap can allow fuel vapors to escape, leading to a noticeable odor. It's also possible that the fuel tank itself has a crack or damage. It’s important to address this issue promptly, as it can pose a fire hazard.