I have a 2013 Chevy Silverado Extended Cab with 5.3 engine with 77000 miles on it. I purchase this vehicle in April 2019. I have driven it about 2000 miles and pulled my 23 trailer with no problems. ...
I have a 2011 Silverado with a Duramax. It starts at 12V and quickly (20 seconds) rises to 14V where it stays no matter what is going on. Original batteries.
My Harley OTOH would start at 12 and go to 17 and higher as revs went up. It was a fried voltage regulator. Replaced it and the battery as it was probably damaged from over-charging.
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