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GMC Sierra 1500 ( flickering headlights, spiked voltage, dash flashing intermittently )


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I’ve been looking through forums for the about a week and found most people experiencing this problem they looked to fixing some ground wires. I just wanted to get something out there for everyone online searching to fix this problem. If your voltage gauge is reading about 16 volts it is the alternator not a ground wire. Hope this helps out there. Let me know if you have any questions? 

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