Question about 2003 Chevrolet Cavalier
Why my 2003 Cavalier has gasoline smell in the cabin and also an Oxygen Sensor code?
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Posted on Jan 02, 2017
EGR is maybe stuck open. disconnect the vac hose at the EGR valve and see if the idle smoothes out. If the EGR is sitcking open, thats a vac leak. If that fixes it, replace the EGR solenoid valve.
Posted on Jan 28, 2010
it might be you fuel regulator it will be leaking very little but enough to get that gas smell in the cab. Becarful not to misjudge it for the 4 injector leaking cause gas will run down right on top of it. It sits on top of your fuel rail and it has a vacum line and a fuel line going to it. It it is leaking it will more than likly be from the rolled metal round piece buy the vacum side. Its an easy fix but it cost aroun $60.
Posted on Dec 22, 2009
SOURCE: gasoline odor
You'll need to inspect every inch of the fuel system for leaks. I would start in the engine compartment. Chech injectors, fuel rail, lines to rail,etc. Check under car for leaks in lines, around tank. Use you nose to give you an idea where to start. Since it fills the passanger compartment I'm betting on the engine compartment in which the fumes could get in through the heater intake which is close.Look for wet spots. It could also be a leak in the evaporative emissions system which includes charcoal canister, purge system and lines but you'd probably have a check engine light with a problem in those systems. The hotter the vehicle and climate will make the leak harder to find due to evaporation.
Posted on Oct 18, 2008
in my experience the usual culprit is the evap cannister. the problem is it gets moisture in it and freezes during winter thus cracking the plastic. if you lay under the car and look at the evap box it black plastic and if you see a loose or cracked hose or the box itself is cracked that is most likely it. as a side note you can check the gas cap and buy a new one to see if that rectifies the situation. lastly i don't think the gas tank should be suspect as you would probably notice if gas was leaking out of the tank. if you take the car to a dealer or shop they can do a smoke test and determine where the leak is.
Posted on Oct 19, 2010
SOURCE: Help with gas fumes smell
Was fuel smell present before you had fuel pump replaced? If yes I would sugest you drop tank and see if fuel vent hose is plugged forcing fuel back pressure line to vent through cap. If fuel smell was not present before you replaced fuel pump and seal. I would suggest you drop tank back out and check all fittings and hose conections. also if you still have old sending unit you could check to make sure they are exactly the same. As Sometimes you have to pull relief valve from old sending unit and install it in the new one, as some sending units wont have one in it. and some will have one that is regulated at a different fuel pressure. hope this helps Vic
Posted on Mar 01, 2012
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