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  1. #1

    Default Tighten fuel cap light

    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. #2

    Default

    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.

    1995 Silverado 4x4
    6" BDS Suspension Lift-3" Body Lift-Add A Leaf in rear -Trailmaster SSV Shocks-Duel Steering Stabilizer Kit -AirAid Cold air intake-
    4.56 Gears with Detroit Auburn Locker-Pro-Comp Traction Bars with duel shocks-Aluminum Skid Plate Kit-38.5" x 16.5" Mickey Thompson Baja Claws-Constant Dropping fuel gauge

    2005 Yukon XL Jet Power Programmer, Bilstein Shocks, Bilstein rear springs, Helwig Anti-sway bars, EGR Window Visors, EGR Hood Shield, Denali Headlights, Headlight harness upgrade, GE NightHawk Bulbs, White Night Rear lighting system, Russell Braided SS brake lines, PowerStop Brake pads, PowerStop cross drilled and Slotted Rotors, http://www.gmtruckclub.com/forum/sho...5-GMC-Yukon-XL
    2002 Silverado ext cab 2wd (Sold)
    2003 Yukon XL (Totaled)

  3. #3

    Default

    Quote Originally Posted by Docwilll View Post
    2005 suburban with 310,000 miles. Tighten fuel cap light keeps coming on after cap and emission canister solenoid has been replaced. Any suggestions?
    ok thanks will check.

  4. #4

    Default

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

    1995 Silverado 4x4
    6" BDS Suspension Lift-3" Body Lift-Add A Leaf in rear -Trailmaster SSV Shocks-Duel Steering Stabilizer Kit -AirAid Cold air intake-
    4.56 Gears with Detroit Auburn Locker-Pro-Comp Traction Bars with duel shocks-Aluminum Skid Plate Kit-38.5" x 16.5" Mickey Thompson Baja Claws-Constant Dropping fuel gauge

    2005 Yukon XL Jet Power Programmer, Bilstein Shocks, Bilstein rear springs, Helwig Anti-sway bars, EGR Window Visors, EGR Hood Shield, Denali Headlights, Headlight harness upgrade, GE NightHawk Bulbs, White Night Rear lighting system, Russell Braided SS brake lines, PowerStop Brake pads, PowerStop cross drilled and Slotted Rotors, http://www.gmtruckclub.com/forum/sho...5-GMC-Yukon-XL
    2002 Silverado ext cab 2wd (Sold)
    2003 Yukon XL (Totaled)

  5. #5

    Default

    Quote Originally Posted by Docwilll View Post
    ok thanks will check.
    cap replaced with GM cap, however the solenoid is not it is a Standard brand.

  6. #6

    Default

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

  7. #7
    Legend

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    Default

    Quote Originally Posted by Docwilll View Post
    2005 suburban with 310,000 miles. Tighten fuel cap light keeps coming on after cap and emission canister solenoid has been replaced. Any suggestions?
    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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