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Old 08-25-2015, 08:50 AM   #1 (permalink)
07DuramaxLBZ4x4
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Join Date: Feb 2011
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Alternator overcharging?

Is it possible for the alt to over charge. I just had to replace the original batteries and someone said overcharging could have made batteries go bad. I checked the charging voltages this morning and it was at 14.7 which does seem high but is it overcharging? I do have a bad number 8 glow plug if that may have something related. The batteries also did have some acid coming from the vents and were pretty hot.

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