Question about 1987 Dodge Ram 50

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<!-- from fixya rte -->Where does blue wire go on alternator - 1987 Dodge Ram 50

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The blue wire is an alternate hotwire most of the time

Posted on Nov 21, 2014

  • corey pittser Nov 21, 2014

    The blue wire is an alternate hotwire most of the time

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I have a 2000 ram 2500 with diesel. The alternator does not have any voltage on the blue wire for postitive excitation. The green wire (negative) will read to battery + so it is okay. I have done a...


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According to my diagram, it appears to go from the red batt wire to a gray 12 gauge fusible link, into a brown 18 gauge link, then turns into the orange/light blue wire and to the alternator.

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ok we have four connections at the alternator( black wire is ground) (white with blue positive direct from the battery)
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