battery gauge moving???? - Chevy TrailBlazer, TrailBlazer SS and GMC Envoy Forum



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  #1  
Old 10-24-2006, 05:14 PM
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nando408 nando408 is offline
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battery gauge moving????

hey guys,
When I drive my truck my battery gauge needle moves back and forth between 12v to 14v. I recently sold my system so I know its not that. My truck use to do it when i had my stereo up loud, but know its just stock and it still does it. I replaced my battery about 6 months ago so i dont believe thats the problem. any ideas guys??

thanks
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  #2  
Old 10-24-2006, 05:18 PM
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ieatglue ieatglue is offline
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Maybe you're having problems with your alt?
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  #3  
Old 10-24-2006, 05:55 PM
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Try cannabalizing an old cigarette lighter socket adapter and hooking the leads to a voltmenter. Monitor the voltmeter while the gage is fluctuating. Maybe the problem is with the gage cluster voltmeter. Do your lights dim noticably when this is occurring?
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Old 10-24-2006, 06:52 PM
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mine fluctuates between 13.5 and 14. however dmm readings show this is not the case. leads me to believe the gauge cluster isn't very accurate.
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Old 10-24-2006, 10:12 PM
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thanks guys, it actually goes from 13 to 14 volts. glad to here its not just me. i wonder if its covered under warranty?
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Old 10-24-2006, 10:21 PM
ScarabEpic22 ScarabEpic22 is offline
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Hmm, Ive noticed my 02 fluctuating a lot at idle, especially with the music on. Seems like my sub is pulling a lot of power, so Im not worried, but I will check tomorrow and see if it does it while driving.
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