2006 Saturn ION Logo
Posted on Oct 02, 2009
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Strong gas smell when engine is turned off.Car runs smoothly otherwise. Started doing this abruptly. Of course milage is now suffering

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I suspect you have a leak in the fuel feed line or vent line. Is your gas tank overfilled? You could also have a problem with your fuel injection system. Please inspect all fuel lines and connections for leaks. Your fuel control pressure regulator should be replaced.

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Hi,
This sounds like a problem with the "Emissions control system"
Designed to absorb fuel vapours - and release them when engine running, When they go wrong it leads to excessive fuel consumption, fuel smells and possibly leaks.

It is most likely a split pipe along this system - which needs checking carefully to find out where exactly.
Overfilling of your tank can lead to pressure problems - popping off a hose, so if you remember doing this - check any carbon filter element and hoses around it.

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