Question about 2005 GMC Yukon Denali

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'04 yukon denali. Gas pump shuts off at every $2.00. Excessive pressure when cap is removed to fill. Not sure if vent is clogged. Need help. Any suggestions?

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Sounds like vent tube or vapor canister is plugged. Try compressed air into vent tube. If that doesn't cure, vapor canister filter is plugged.

Posted on Mar 17, 2011

  • gmfan1 Jun 21, 2011

    I have the same issue 2004 Yukon denali. Is the vent tube the one that connects to the filler neck, the smaller one? And also is the vapor canister located under the black plastic tank cover? Thanks

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