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1998 Ford Taurus

Question: Unhooking battery

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Visitor, 3.0L V6 DOHC, Jackson, MI, January 23, 2011, 10:07

On this vehicle can you remove the positive battery cable to test the alternator

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  • Answer #1

    patrick mannion from Greg Solow's Engine Room, January 23, 2011, 10:11
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     Master

    NO. That was a test for old dynamo cars!
    Disconnecting the battery makes the regulator see the battery voltage go to zero and causes a voltage surge as the alternator tries to charge the battery at peak charge.

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