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Thread: Smelling gas when I turn on the heater

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    Question Smelling gas when I turn on the heater

    Does anybody know why I would be smelling gas through the heater vents? I am thinking I have a gas leak but where could it be coming from? The vehicle in question is an '03 Tiburon..... and NO it is not mine, it's the girlfriends car.
    Any ideas where to look first for a leak? I have not noticed any leaking of gas on the driveway so assuming it is finding it's way inside a compartment before hitting the ground.
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    i would take a good sniff under the hood some of the underhood air gets sucked into the heater.
    no fuel lines running through any compartments.

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    my parents Avalanche has the same deal... they choose to ignore it...
    Richard
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    My jeep does a similar event, only you can smell anti-freeze instead. I'll find it when it becomes a major issue.
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    Quote Originally Posted by Jowo240 View Post
    My jeep does a similar event, only you can smell anti-freeze instead. I'll find it when it becomes a major issue.
    Your heater core will have a small leak in it.

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    could the fuel lines possibly be running trough the inside of the car? for some reason i had a feeling my old civic was like that.
    love my 2.5

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    ^ Old civics did run fuel lines through the cabin.

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    Funny thing is that it doesn't smell all the time. Tried different settings for the blower and it doesn't make a difference.
    Will check to see where the fuel lines run and if they are in the cabin, I will look for moisture.

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    Check for fuel leaks around the injectors. I just had a ZJ in for that - randomly could smell fuel inside the cabin with the heater on. I pressurized the system and left it overnight, and fuel would pool in the intake valley. As she drove away, the evaporated fumes would be pulled in.
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    If it is fuel you smell...find it and fix it NOW. If it isn't and the car has a/c. Change the cabin filter and the smell goes away.Also can spray Fabreeze on the filter if desired......goodluck

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    Quote Originally Posted by Noltz View Post
    Check for fuel leaks around the injectors. I just had a ZJ in for that - randomly could smell fuel inside the cabin with the heater on. I pressurized the system and left it overnight, and fuel would pool in the intake valley. As she drove away, the evaporated fumes would be pulled in.
    next time it smells, i will look around the injectors Noltz
    thanks

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    And a change in the cabin filter may be a good idea too, girlfriend has probably never done it since she got the car.
    Cheers

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