Fuel Odor
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Cadillac DeVille 1985 to 2005 including:
1985-1992 Fleetwood, 1993 Sixty Special, All FWD Forum Discussion, Fuel Odor in Past Cadillac Vehicle Discussion; It seems whenever I fill the tank I can smell gas when I have the thing parked and I can ...
  1. #1
    2dfx's Avatar
    2dfx is offline Cadillac Owners Fanatic
    Automobile(s): 2003 Cadillac DeVille
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    Thumbs down Fuel Odor

    It seems whenever I fill the tank I can smell gas when I have the thing parked and I can smell it inside the car. It gets less prominent when the level drops to 3/4 of a tank, but I can occasionally smell it coming from the front of the car. Suggestions/ideas?

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  3. #2
    Stoneage_Caddy's Avatar
    Stoneage_Caddy is offline Cadillac Owners 10000+ Posts
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    Re: Fuel Odor

    not sure dude , wonder if the rubber hose that cnnects the filler door to the tank is mounted near the top of the tank ? maybe its leaking ?

    never been under the rear of my caddy so i dont know how exactly the tank is plummed in

  4. #3
    elwesso's Avatar
    elwesso is offline Cadillac Owners Master
    Automobile(s): 2005 CTS-V, 1994 Infiniti Q45
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    Re: Fuel Odor

    I bet you have a leaky line somewhere......! DUH i guess....

    The trick is going to be finding it! Once you have a location, it should be fairly easy to fix it!

  5. #4
    DaveSmed's Avatar
    DaveSmed is offline Cadillac Owners Connoisseur
    Automobile(s): 1968 Cadillac Sedan deVille, 1994 Chevrolet G20
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    Re: Fuel Odor

    Could also be the EVAP system acting up. Maybe your charcoal canister is saturated.

  6. #5
    sonjaab is offline Cadillac Owners Fanatic
    Automobile(s): 2011 DTS Premium
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    Re: Fuel Odor

    2DFX..........Since you live in snow and salt land
    (like me!). You may have a rotted gas line !

    To find out.......get access to compressed air and
    a blower nozzel end. Wrap a rag around the nozzle
    and insert into fuel filler. Put a little pressure to it.
    And look for leaks............

    I used this method for some of my dying winter rat
    cars. Most turned out to be a rotted fuel line in the
    frame rail. And ya sure can smell the gas but not see it....................geo

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