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2006 Ford Freestyle Question: why dont battery keep a charge



melomel, Saint Henry, OH, April 09, 2011, 18:32

battery checked ok charging system says ok but alternator reads doides pass but low reg,

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  • Answer #1

    April 10, 2011, 02:18

    Voltage regulator output should be above 14.0 Volts at 2,000 RPM engine speed. If it is not, this is your area of attention.

    Since the voltage regulator is internal to the alternator, you are likely going to need to replace the alternator.

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