Illumination of the Check Engine Light can be caused by a loose or worn gas cap.
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Newest reported 2008 Chevrolet Uplander problems
Corrosion at the fuel tank to body harness may cause the Check Engine Light to illuminate or a crank no start condition. This corrosion issue is most commonly caused by a water leak inside the vehicle. Any damaged wiring or connectors will require replacement.
All of the sudden stopped working