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Old 06-13-2009, 01:08 PM
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MK MK is offline
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I don't know if this is the case, but I remember cases where the failure
of one of the diodes in the alternator can cause the light to stay on.
In this case, I think the alternator still works to some degree, but not to
full capacity. Most of the auto zones, etc have testers that can check alternators.
I dunno if they can sense a single failed diode, but might be worth a check.
Also, I kind of doubt this is the problem, but make sure the belt is not slipping or
loose.
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