Question about 2004 GMC Envoy

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Envoy 2006 gas & engine lights

My gas light is now on with a full tank of gas and reads empty. My check engine light is also on. Already serviced last month and has a full tank of gas. Gas cap is on nice and tight too. Any suggestions?

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  • oldenglish79 Feb 12, 2009

    my tank gas is full but when the needle hits the full mark it goes down to empty and the beeping sound comes on on the cluster it says very low gas.

  • carlysurratt Mar 31, 2009

    Ok so what should I ask for when I go in? Just a computer update? I do not want to buy a new computer but trust that they will try to sell me one

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The problem is that there are updates for the computer in your vehicle.The dealership can do what they call a flash and install those updates.The bad part in my opinion is that they dont inform the public of this and they will try to sell you a new computer when you dont need it.

Posted on Mar 03, 2009

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Not that GM isn't completely exonerated from fault but the gas stations don't do a very good job of watching what the stations sell.

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