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Strong fuel Smell

Discussion in 'Performance & Fuel' started by Guamrock, Aug 10, 2010.

  1. Guamrock

    Guamrock New Member

    After driving during the afternoon.
    I seem to smell gas outside my suburban at the rear.
    And from what i checked there's no leak.
    Any Clue

    Last edited: Aug 10, 2010
  2. azdrtdog

    azdrtdog Epic Member 5+ Years 100 Posts

    Sounds like a vent hose then but the pcm monitors the tank and will throw a light if it gets worse
  3. murdog94

    murdog94 Epic Member 5+ Years 5000 Posts

    Id think the same thing. Seeing as it has been so friggin hot the fuel vapors are going to be higher right now.
  4. Guamrock

    Guamrock New Member

    sound about right bro! But do you have any idea where its located at i have a feeling its near the gas tank???



  5. azdrtdog

    azdrtdog Epic Member 5+ Years 100 Posts

    It could be a bad gasket on the fuel cap or a vent hose on the frame rail where it goes from rubber to metal. The ODB II system does monitor the vapor system on the fuel tank and if the cap is left off after fueling will set the check engine light but only a soft code. Check the cap it is the most common problem and the vapor recovery won't always catch it (no light)
  6. Allen

    Allen New Member

    Did you ever find any resolution to this problem? Mine is an '08 suburban and I also also have a strong gas smell outside the car...seems to be towrads the rear of the car...not really under the hood...ideas?

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