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Tighten fuel cap light

Discussion in 'Chevy Suburban Forum (GMC Yukon XL)' started by Docwilll, Dec 4, 2013.

  1. Docwilll

    Docwilll New Member

    2005 suburban with 310,000 miles. Tighten fuel cap light keeps coming on after cap and emission canister solenoid has been replaced. Any suggestions?
  2. Pikey

    Pikey Moderator Staff Member 3 Years ROTM Winner 1000 Posts

    check that the filler neck tube that runs from the tank to the filler neck is properly connected and has tight connections. It could be a tank seal leak also.
  3. Docwilll

    Docwilll New Member

    ok thanks will check.
  4. Pikey

    Pikey Moderator Staff Member 3 Years ROTM Winner 1000 Posts

    Did you put a cap on from the dealer or a cap from autozone? Is it a solid cap or one with a key?
  5. Docwilll

    Docwilll New Member

    cap replaced with GM cap, however the solenoid is not it is a Standard brand.
  6. Camaro69car

    Camaro69car Member 1 Year 100 Posts

    sounds like theres a leak somewhere to me. check your connections.
  7. j cat

    j cat Rockstar 4 Years 1000 Posts

    what must be done is post the specific DTC failure code. then forum members can direct you.

    could be many different failures from the engine to the fuel fill.

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