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97' 250. Just replaced the alternator, test good. Battery is fine. Cant get the atlernator to charge. Voltage regulator maybe? All fuses check out fine. How do you check the voltage regulator? Or maybe other things i should check? Thanks!
Did you replace the alternator with a new/rebuilt alternator or another used alternator?
How did you test the alternator?
The voltage regulator is built into the alternator.
If the alternator is good and the battery is good, but it still is not charging, then you have a wiring harness problem. Possibly an open fused link. Don't ask where to look. Get a wiring diagram and check/test all connections.