Check Engine Light Due to Loose or Worn Gas Cap on GMC Savana 3500

A loose or worn gas cap could be cause the Check Engine Light to illuminate.

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Average mileage: (–)
Exhaust & Emissions affected: Gasoline
2 model years affected: 2009, 2010
2 people reported this problem
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A Loose or worn gas cap may cause Check Engine Light to illuminate.
I lend my uncle my truck and he fill it up with gas, after that it started driving really bad....

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