6.0 alternator only charging at 9 volts - Ford Powerstroke Diesel Forum
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post #1 of 1 Old 10-15-2019, 11:15 AM Thread Starter
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6.0 alternator only charging at 9 volts

Okay so here is the issue. Alternator is only producing 8.8-9v. I have found that the LG/RD wire is only producing 1v key on engine running anyone have any ideas?

I've tried searching and haven't found too much on definitive ways to trouble shoot this issue. I have attached the I circuit to battery voltage and the alternator will fire at 11.8-12.5 volts but that is slowly killing my batteries.

i have replaced the alternator twice with two brand new units.
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Last edited by Andy Dittmar; 10-15-2019 at 12:22 PM.
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