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To change the alternator on a 2002 Ford Focus, first disconnect the negative battery terminal to ensure safety. Remove the serpentine belt by loosening the tensioner, then unbolt the alternator from its mounting bracket. Disconnect the wiring harness and remove the alternator, then install the new one by reversing the steps—reattach the wiring, secure the alternator with bolts, and reinstall the serpentine belt before reconnecting the battery. Finally, start the engine to ensure the new alternator is functioning properly.

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AnswerBot

5d ago

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