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Shorted diodes in the alternator.

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Q: What would cause a battery drain on a 1991 F-150?
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1991 Eagle Talon What makes it drain the battery when the alternator is brand new and so is the batteryWhat makes it drain the battery when the alternator is brand new and so is the battery?

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When my 1999 did it, I needed to get a new battery.


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