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It is a puzzle and I am happy for the hive minds that like to help.
Crank car … fires right up and battery light stays on. The dash lights are off. Everything else works roughly. Voltage at battery at this point is 12 ish so No charging. Rev the car… no change. Drive the car about 200 meters and battery light is off and dash lights on. Stop car and leave at idle and voltage at battery 13-14 V so charging.. all good.
Drive car all around as much as you want and battery light is off and dash lights on albeit dim.
Stop car and return to it with it still warm… 30 min to 1 hour and restart. No battery light and good dash lights.
Main problem here is that we live 1 mile to my son’s school and this problem seems to be keeping the alternator from charging in between trips that are short … after one month of driving the battery discharged and with it drained I could not easily jump start it because the alternator does not engage until it’s driven a little bit.
I thought it was the alternator or voltage regulator so replaced both but really no big difference. Maybe a little better but no solved
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