* Loose or damaged fuel line: A fuel line may be cracked, loose, or improperly connected. This is the most likely culprit and can be anywhere from the tank to the engine. Fuel lines under pressure can spray fuel in a significant amount, causing a major fire risk.
* Faulty fuel pump: While less likely to leak *while parked*, a faulty fuel pump could have a leak in a seal or its mounting. The pressure inside the system might be enough to cause a leak even when the engine's off.
* Leaking fuel injector(s): Highly unlikely to leak *significantly* while parked, but a very small, persistent drip is possible from a faulty injector seal.
* Leaking fuel filter: Again, less likely, but a damaged fuel filter could leak.
* Cracked fuel tank: This is a serious problem. A crack in the fuel tank itself would allow fuel to escape.
* Loose or damaged fuel cap: While this usually leads to evaporative emissions problems, a very badly damaged cap *might* contribute to some leakage under certain pressure conditions, though this is less probable given the description.
What you MUST do:
1. Do NOT drive the car. The risk of fire is too high.
2. Do NOT attempt to repair it yourself unless you are a qualified mechanic. Working on fuel systems requires specialized knowledge and safety precautions. One wrong move can lead to a fire or explosion.
3. Have it towed to a qualified mechanic immediately. Describe the problem exactly as you have here. They will be able to diagnose and repair the leak safely.
This is a serious safety hazard. Ignoring it could have devastating consequences. Get professional help right away.
