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Re: Delco 10 DN Alternator draing battery...

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Posted by Bus Driver on December 10, 2003 at 15:53:07 from (66.226.37.95):

In Reply to: Delco 10 DN Alternator draing battery... posted by Mark on December 10, 2003 at 13:53:34:

Have not looked at the diagrams referenced. But one cause of discharge through an alternator is a shorted diode(s) in the alternator. They change the generated AC current to DC. One of the primary causes of shorted internal diodes is removing a battery cable while the engine is running- but they occasionally fail spontanteously. If other diagnoses fail to find the problem, consider this one.

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