Question about 1990 Ford Taurus

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I have a 1990 Ford Taurus and the battery won't hold a charge it will if I jump it but is dead after sitting over night. How do I tell if this is the battery or the alternator, or is the fact that after sitting over night and wont start is the alternator draining the battery?

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You can stop by and auto parts store and they will check you charging system for free and let you know for sure if it is the battery or alternator

Posted on Aug 28, 2010

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LIGHT ON IN THE THE GLOVE BOX,TRUNK,STUCK BREAK LIGHT SWITCH,,, LOOK AT IT AT NIGHT WHEN ITS GOOD DARK. OR IT COULD BE A BAD BATTERY

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