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Battery will not stay charged

Tiny
SAMGREW
  • MEMBER
  • 2000 CHEVROLET IMPALA
  • 3.4L
  • 6 CYL
  • 2WD
  • AUTOMATIC
  • 225,000 MILES
Replaced alternator when first started fine, then a few minutes battery light comes on and battery will drain out. Also replaced battery, no change. Also only code is fan control.
Wednesday, July 21st, 2021 AT 8:44 AM

3 Replies

Tiny
SQM
  • MECHANIC
  • 6,383 POSTS
Hello,

Almost sounds like a wiring issue.
Have you got a chance to make sure the main charging wire from the alternator to the battery is in good condition and attached securely? If not take a look at that wire as well as the battery terminals.

https://www.2carpros.com/articles/how-a-car-electrical-system-works

I have attached the charging system wiring diagram for your reference. Also included diagnostics steps.

Please let me know if you are able to get this resolved.

Thank you.
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Wednesday, July 21st, 2021 AT 5:28 PM
Tiny
SAMGREW
  • MEMBER
  • 41 POSTS
Found broken wire. Replaced it. Everything working great. Thank you very much.
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Friday, July 23rd, 2021 AT 10:47 AM
Tiny
SQM
  • MECHANIC
  • 6,383 POSTS
I am glad you were able to fix.
Feel free to reach out to me if you have any questions.
Thank you.
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Friday, July 23rd, 2021 AT 10:38 PM

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