Question about 2003 Ford Windstar

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Battery light stays on after changing battery,alternater & plugin.

Alternater charging but light won,t go off

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Is the system charging? You should have 14.2 14.6 volts at the battery. The charge light is controlled by the alternator internally. If the charging system is working, you could have a bad diode inside the alternator keeping the light on or a short/grounded circuit to the battery light

Posted on Apr 11, 2015

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I believe the rebuilt one is not good too. If the battery light stays on it means that the system is not charging. Did you connect all the wires the same way

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