2003 GMC Envoy Logo
Posted on Jul 20, 2011
Answered by a Fixya Expert

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My 2004 envoy will not start. A couple nights ago the lights on the dash were going crazy on and off. I would lose power on the radio and the dash gauges would lose power (fuel, battery, water) they would stay down for a few minutes and then go back up. Today the dash lights and all check lights light up when I turn the key but it will not start or turn over at all. Battery is fully charged. The starter is new.

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Jeremy W.

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  • GMC Master 5,332 Answers
  • Posted on Jul 21, 2011
Jeremy W.
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Check the connections at the battery. Loose connections or corroded connections will cause this same symptom.

It is not uncommon for side terminal batteries to also have a problem internally between the mounting button (the place that the cable end bolts to) and the internal connection to the battery.

What sounds like what is happening is the connection is good enough to power up a light load, dash lights, gauges, radio, etc, but when a heavy load is demanded the connection heats up and looses continuity.

I see this issue more on fords but I have seen a fair amount of GM's with this issue.

I’m happy to assist further over the phone at https://www.6ya.com/expert/jeremy_d728a59f986299fa

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