Question about 1995 Ford Bronco

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Battery light on at 1600rps and higher only. alternator charges ok at idle. removed alternator and had it checked found ok. found at high rpms voltage going to alternator drops. i belive voltage comes from ignition sw, but not sure. when voltage to alternator drops alternator stops charging and battery voltage shows 12.5volts.

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  • Anonymous Nov 13, 2008

    same thing battery light comes on

  • Anonymous Mar 12, 2014

    My 2006 Dts use to show 14.4V while droving, now shows 14.8 - 14-9
    Is this ok or should I fix something

  • Anonymous Mar 19, 2014

    the alternator is not charging battery

  • Anonymous Mar 24, 2014

    when at a stop light my voltage drops real bad

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Some ford vehicles have an external voltage regulator. when theres more demand for power it gives it. but when theres too much itll lower it so it does not overcharge. at 1600 rpms there is more demand, plugs firing with more fuel in the cyl, if the alt is working properly the regulator could mess up and stop power from the alt. its a cheap fix or tryout...another big problem is ground if the system does not have an adequate ground nothin would work as it should.

Posted on May 11, 2009

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Sounds like the rotor is flying open the part store cant get the unti up to high enuff rpm to see the problem

Posted on Apr 06, 2009

  • david griffin
    david griffin Apr 07, 2009

    sounds like a bad rotor maby brushes

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