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<blockquote data-quote="SLAB153" data-source="post: 8543237" data-attributes="member: 671631"><p>Most gm vehicles have what's called voltage regulator my car has it. When battery is at 80% alternator cuts off n car runs on 12.9v it goes up once wipers are on, or headlights, or battery falls below 80% it's the voltage regulator negative wire I kept it unplugged so voltage could've stayed at 14.5 or so I thought which it shows on the dash. Now it's 68v ac and 14.6v dc with car running since I plug the voltage regulator negative back on the battery, I shut the car off 3 mins ago dmm shows 12.99v dc on + and - on amp</p><p></p><p>Sent from my iPhone using Tapatalk</p></blockquote><p></p>
[QUOTE="SLAB153, post: 8543237, member: 671631"] Most gm vehicles have what's called voltage regulator my car has it. When battery is at 80% alternator cuts off n car runs on 12.9v it goes up once wipers are on, or headlights, or battery falls below 80% it's the voltage regulator negative wire I kept it unplugged so voltage could've stayed at 14.5 or so I thought which it shows on the dash. Now it's 68v ac and 14.6v dc with car running since I plug the voltage regulator negative back on the battery, I shut the car off 3 mins ago dmm shows 12.99v dc on + and - on amp Sent from my iPhone using Tapatalk [/QUOTE]
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