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If you're positive it's gasoline, then check under the hood for leaks. They'll be more prevelant when it cold outside.
Look at the fuel injectors, then looks for leaks by tracing the fuel line. More than likely it's a simple o-ring on an injector, or a loose fitting on the fuel filter.
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Hi Ed.
this is all i could find at the moment.
Gas Cap Causing Gasoline Smell in Car. I know it may seem obvious, but a loose or missing gas cap can cause a fuel smell in your vehicle. You could even have a faulty gas cap that is leaking fumes. A faulty gas cap can also cause the check engine light to illuminate with a DTC on newer cars.
If you have a strong gasoline smell, get that car into a mechanic ASAP. Forget fooling around trying to discover the problem yourself. Gas explodes, right? You already have a strong smell. That means that somewhere down the fuel system line there is an active leak and that is dangerous. The fact you have to post here means you don't know anything about a car, so stop messing around with a potential lethal problem. I am an old alley mechanic from wayyyyy back and am speaking from experience.
I would check the computer for trouble codes first.
The gas smell can be something leaking around or on the engine, the heater pulls air into the cabin from the engine compartment.
If it is running fine, the busted bolt isn't the source of the gasoline smell. The intake manifold has vacuum, so the smell wouldn't be getting out, air would be going in, and a vacuum leak would give you poor idling. The exhaust manifold wouldn't have much raw gasoline smell. But it would have loud noise if the broken bolt were causing an exhaust leak.
Check that the vapor recovery line is not broken or disconnected. The hose connectors get cracked. If that were broken, it would cause a gasoline smell after the car has been sitting, especially if it has been sitting in the sun, heat driving gasoline vapor out of the tank. It is supposed to condense in the vapor canister, but some escapes if the line is broken. If it is broken, driving would **** out the gasoline from the line and the wind would dissipate the smell.
Or it could be a leaking injector. With the injector cover off, engine idling and cool, you can visually look for raw gas around the injectors and injector rail connections.
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
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.
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