Question about 2004 GMC Envoy

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I live in AB Canada and it was about 10 below zero Celcius today. I put the unit in AWD because it was really icy and was driving around town shopping for about an hour. Suddenly, all the dash warning lights went on and the unit lost all engine power. I shut it off and restarted it and the engine light stayed on. I just had the oil changed but checked the oil and it was good. Both the oil pressure and temp gauges were at normal, and the engine regained power so I drove home. When I got to the house I shut the unit off and then restarted it, and the engine light did not stay on this time....any ideas as to what the problem may have been?? Oops - it's a 2004 GMC Envoy - 6 cyl.

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You need to have your gmc computer checked for codes ,since the light is now off,they will have to check history codes for what caused it

Posted on Dec 09, 2009

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I have had this issue occur on mine as well. It has nothing to do with the AWD. From what the dealer told me the warning lights will come on and the engine will actually shut off if it "detects" bad fuel that could harm it. Perhaps you got water in your tank or just some low grade fuel?????? I know it does not quite make sense. This has happened to me twice in 3 years of driving this vehicle.

Posted on Dec 10, 2009

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