I've replaced the alternator, battery and ECM. It's still overcharging.
Dec 15, 2020 at 5:27 AM
overcharging
1989 GMC C2500
LARRY LAFRANK
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Good morning,
What is the charge rate?
There is no ECM involvement in this year. It is way too early.
It is all controlled by the alternator itself.
https://www.2carpros.com/articles/how-to-check-a-car-alternator
https://www.2carpros.com/articles/how-to-replace-an-alternator
Roy
What is the charge rate?
There is no ECM involvement in this year. It is way too early.
It is all controlled by the alternator itself.
https://www.2carpros.com/articles/how-to-check-a-car-alternator
https://www.2carpros.com/articles/how-to-replace-an-alternator
Roy
Image (Click to enlarge)
Dec 15, 2020 at 6:50 AM