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Fuel smell in the garage

This is a discussion on Fuel smell in the garage within the General Help forums, part of the LSx Technical Help Section category; Hey guys. I have noticed this issue lately after I drive the car for a while and park it inside ...

  1. #1
    Senior Member JayTA98's Avatar
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    Fuel smell in the garage

    Hey guys. I have noticed this issue lately after I drive the car for a while and park it inside the garage. I do smell like gas fumes. I put a brand new gas cap a last month. I get close to the gas cap area and wheel well I do smell the gas fumes. I don't see any gas on the floor or dripping anywhere. It smells more strong when the car is at 1/4 of a tank. I don't let it go down to that level often since I got a gas station aorund the corner. Any ideas on what to check? I'm supecting the tank is venting the fumes but why are so much fumes coming out? thanks.

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    Moderator 98TransAmWs-6's Avatar
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    Check your evap solenoid that plugs into the driver's side of intake manifold. It also is hooked into a evap canister, if loose it can result in a gas smell. Are you getting any other issues other than a gas smell?
    Last edited by 98TransAmWs-6; 08-01-2013 at 10:32 AM.
    1998 Trans Am WS6 - Phantom
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    Senior Member JayTA98's Avatar
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    not really the car is running fine. no codes.

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    Spaz is My Mentor SMWS6TA's Avatar
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    summer = hotter temps.

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    Senior Member JayTA98's Avatar
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    yeah but is it normal for a car to let gas fumes like that?

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    Spaz is My Mentor SMWS6TA's Avatar
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    when I was doing my fuel pump I notice there was a line that came off the tank and went to this white plastic piece. Looks like it was for venting. This may be cracked?

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    Senior Member JayTA98's Avatar
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    don't know. I will try to get underneath the car tomorrow and check. I might check the gasket in the tank where the fuel pump goes

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    Spaz is My Mentor SMWS6TA's Avatar
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    that was going to be my next suggestion.

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    Veteran 0rion's Avatar
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    the evap canister is behind the filler neck in the quarter panel towards the bumper. If you were leaking from a line going to that or if your evap purge wasn't working correctly you should be throwing a code and they're pretty sensitive. You really shouldn't be smelling gas but it does sound like you have an issue there if it's strong enough that you notice it that much. Have you done a fuel pump on the car or anything like that? Check your fittings at the fuel filter and make sure one isn't damp or something. Gas evaporates so unless it was a fairly large amount you might not see it on the floor.

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    Member Guerrillakilla13's Avatar
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    From personal experience, when my car started emitting some pretty strong gasoline smells the P0420 code showed up. did exactly what you were describing.

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    Senior Member JayTA98's Avatar
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    I did the fuel pump 3 yrs ago. the issue started about 3 weeks ago. it comes and goes but it has been persistant lately. I will check the fittings.

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    Veteran 0rion's Avatar
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    did you do the trap door or did you drop the rear?

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    Senior Member JayTA98's Avatar
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    trap door

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    Junior Member Wagonmaster2's Avatar
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    You may laugh, but make sure there is no gas can in the area with an open vent....Stuff happens...

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    Senior Member JayTA98's Avatar
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    no lol. the smell only happens when I pull the car into the garage after driving it for a while. there is no fuel cans anyway.

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    Retired NOT tired SteveC's Avatar
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    You may have a leaky fuel injector.

    SteveC

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    Senior Member JayTA98's Avatar
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    Quote Originally Posted by SteveC View Post
    You may have a leaky fuel injector.

    SteveC
    didn't even think about that. You mean the o-ring leaking in the outside of the intake? but if that was the case, it will be smelling all the time. I park my car in the garage. I only seem to smell it when the tank is at 1/4 and I ran the car for a while. I will check anyway

  18. #18
    Retired NOT tired SteveC's Avatar
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    Quote Originally Posted by JayTA98 View Post
    didn't even think about that. You mean the o-ring leaking in the outside of the intake? but if that was the case, it will be smelling all the time. I park my car in the garage. I only seem to smell it when the tank is at 1/4 and I ran the car for a while. I will check anyway
    Yes, exactly.

    SteveC

  19. #19
    Senior Member JayTA98's Avatar
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    well dispite the new fuel cap I noticed today it is not sealing. I just bought this cap last month on rockauto.
    im going to get another cap locally. I always like the locking ones but they seems to have issues.

  20. #20
    Senior Member JayTA98's Avatar
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    well nobody locally has the fuel cap in stock...

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