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GMC Yukon Denali Check Engine Light Due to Gas Cap Issue

 
GMC Yukon Denali Problem
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Model Years Affected: 2007, 2008, 2009, 2010

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A Loose or worn gas cap may cause Check Engine Light to illuminate.

  • Got a diagnosis with a code using the code machine...the code could have been a couple things related to gas, but it was determined that it was just that the gas cap was too loose ....just replace the cap.

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