Atrevino0497
Member
- Joined
- May 23, 2023
- Posts
- 39
- Reaction score
- 35
What threw me off with these Yukons, Tahoe, burbs and the Escalades is the charging system is controlled by the computer to increase efficiency. I was reading my owners manual and it said it’ll throw a service charging system if the alternator wasn’t charging the battery correctly.
My 13 Tahoe will sometimes be at 12v during a road trip and it’ll go above 13 when I have accessories on. I changed out my battery and alternator a month or so ago when I noticed flickering lights at night.
It’s hard diagnosing the alternator and or battery sometimes because they both can test good sometimes and still be bad. My battery was bad because it would only hold at charge at 12.17v after sitting all night and then my alternator was working harder for who knows how long causing it to prematurely wear
My 13 Tahoe will sometimes be at 12v during a road trip and it’ll go above 13 when I have accessories on. I changed out my battery and alternator a month or so ago when I noticed flickering lights at night.
It’s hard diagnosing the alternator and or battery sometimes because they both can test good sometimes and still be bad. My battery was bad because it would only hold at charge at 12.17v after sitting all night and then my alternator was working harder for who knows how long causing it to prematurely wear