Intermittent battery not charging for about two minutes?

2004 CHEVROLET TAHOE
125,000 MILES • 5.3L • V8 • 2WD • AUTOMATIC
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BILLHILL
  • MEMBER
  • 1 POST
Car starts and runs fine... then sometimes, following occurs, red battery light on dash, dash voltage drops about 1/2, warning message of battery not charging.... lasts for a minute or two then goes away. normal voltage at battery but have not been able to check it when above happens. New battery last week, did not correct. suspect, ground cable, voltage regulator, alternator... where should I begin? The alternate output in little red box looks rusty so I thought that I should remove battery ground, remove that and wire brush for possible starters....
Jun 21, 2023 at 4:52 AM
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STRAILER
  • CAR REPAIR CONTRIBUTOR
  • 54,189 POSTS
Yep, I would clean the connection, but it sounds like the alternator is going out.

here is a video to show you how to change it out:

https://youtu.be/d3dt5cQGhmM

Please let us know if you need anything else to get the problem fixed.


Jun 21, 2023 at 11:56 AM
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