2008 f250 super duty 6.4 battery drain

Asked by GuruJ8DC2 Aug 05, 2020 at 10:20 AM about the 2008 Ford F-250 Super Duty FX4 Super Cab LB

Question type: Maintenance & Repair

I hear a humming noise coming from my
engine compartment. And if I disconnect the
batteries it will go away. If I don't disconnect
the batteries then they will be drained by the
next day. Any ideas where the humming is
coming from?

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