Chevy and GMC Duramax Diesel Forum

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-   -   Lights dimming and brightening and volt meter swinging (https://www.duramaxforum.com/forum/build-threads/996859-lights-dimming-brightening-volt-meter-swinging.html)

SawyerLee 06-28-2019 08:13 AM

Lights dimming and brightening and volt meter swinging
 
My volt meter is swinging between 15-17 volts and headlights are dimming and brightening. I load tested batteries and they show good. I pull alternator and had it rebuilt. Still doing the same thing. Any help would be appreciated. 2002 duramax


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