check engine light

Asked by marleau58 May 24, 2011 at 07:47 PM about the Chevrolet Silverado 1500

Question type: Maintenance & Repair

check engine light is on.onstar said it was a fuel problem anyone know about this.

2 Answers
19,045

Jason answered 12 years ago

check on the fuel cap... is it tight? could there be water in the fuel(bad gas station)?

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Rwilkbike answered 3 years ago

The morning after adding some gas to my tank, I started to have the problem of stabiltrak turning off and the engine power was reduced, and the check engine light coming on. The problem went away for a while after I added more gasoline, but came bank when the tank got below one Quarter. I highly suspect I got some bad gas, and it has yet to work it’s way out of the system....

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