Alternator issue

GREGORY MICHAEL YATES

MEMBER
2007 DODGE CHARGER
3.5L
6 CYL
2WD
AUTOMATIC
211,000 MILES

Hi Folks,

I have a battery light on dash and my battery is not charging.
I replaced alternator and started engine and no battery light.
Then I drove a few miles and light is back on and battery is not charged
I went cheap on buying a cheap partially rebuild alternator.
Or maybe the problem is not alternator but wiring or connector, etc?

4 Replies

KASEKENNY

MECHANIC
18,907 POSTS

Hi Gregory,

We need to perform an alternator test. If the alternator is charging but the battery is drained then it can cause that light to come on as well so we need to have the battery tested as well.

https://www.2carpros.com/articles/how-to-check-a-car-alternator

Basically this light is telling you that the overall charge of the vehicle that the PCM is reading is not sufficient.

It could be the battery, alternator, wiring, or a PCM. The fact that the light goes off and then comes back on makes me think either the alternator is bad or the battery is weak.

Keep me posted on what you find. Thanks

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Tuesday, June 11th, 2019 AT 4:37 PM

GREGORY MICHAEL YATES

MEMBER
89 POSTS

Okay, thanks. I will have battery checked first.

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Tuesday, June 11th, 2019 AT 5:10 PM

GREGORY MICHAEL YATES

MEMBER
89 POSTS

Sorry for delay. Was a bad battery.
I sold the car. Good riddance to Glemlins.
Thanks again.

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Thursday, June 25th, 2020 AT 2:42 PM

KASEKENNY

MECHANIC
18,907 POSTS

Failed batteries are the worst. They cause all sorts of crazy issues. Glad you got it resolved and unloaded the car. Hopefully it will be just fine for someone else. Thanks for using 2CarPros.

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Friday, June 26th, 2020 AT 7:44 PM