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1999 grand am se Check the altinator to see if it's charging the battery?
Wiki User
∙ 14y ago
First start the car then pull off the positive on the battery if the car dies than you need a new alternator if the car keeps running u may need a new battery.
A word of caution, testing an alternator that way can cause damage to the alternator. The alternator needs power to make power unlike the old generators from the past.
Wiki User
∙ 14y ago
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