2006 Corolla. I smell gasoline after I turn off the engine. Car has 108,000 miles and runs very well.

SOURCE: Strong gasoline smell when cold and wet weather.

the first thing to do is look under the car at the plastic canister the vaper recovery system it is in the rear some times it is coverd by a sheild the vacuume hoses are bad if you smell gas and that will turn the light on it works off a pressure senser on the tank check all the hoses

SOURCE: 2003 Pontiac Montana antifreeze smell?

Bad News. I recently had the same type of smell ( no leaks or puddles either) coming from my van and had to have the intake manifold gasket replaced due to the Dex-cool issue. It appears GM installed an inadequate/substandard gasket when they built the van. My van only had 65,000 miles on it. There's a Dex-cool settlement you could have applied for but repairs had to be made by May of 2008.

This is the only real complaint I've had with the van.

SOURCE: 2000 Audi s4 has strong smell of gasoline

Pop the hood and check all the fueling lines, then check your gas tank and see if you just spilled some. Then check your exhaust pipes because you are probably running rich. You may need to change your spark plugs, or possibly a mass air flow sensor, or oxygen sensors. you should get either a vagcom to scan it or an OBD-II scanner.

SOURCE: gas odor when at stops sign or parking in garage

I recently had the same problem. It turned out that the fuel regulator on the engine at the left side just above the intake manifold had an intermitent leak. The gas leaking was not always visible so I had the regulator changed and that solved the problem.

SOURCE: My 04 Malibu gives off a strong smell of gasoline

The fuel pump is bad.