Alternator swap questions...

Discussion in 'Electrical' started by Redneck_ranger, Apr 22, 2012.

  1. Fx4wannabe01

    Fx4wannabe01 New Member

    Has anyone figured out if anything needs done to our external regulator and wiring when we do the internally regulated Explorer alts??

    I've just never gotten around to fingering it out. lol.
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  3. Superlifted06FX4

    Superlifted06FX4 Last of the V8s

    WTF are you talking about? You have an internal regulator.
  4. Fx4wannabe01

    Fx4wannabe01 New Member

    Then why do I have an extra wire on the alternator plug who's circuit in the electrical manual is "regulator"??

    I remember looking into it during my engine swap and both '01 4.0 and '06 4.0 engine and charging/starting system harnesses have the same wire. Believe it's White/Black. I never dug deep enough into the spare harness to see where she went.
  5. Superlifted06FX4

    Superlifted06FX4 Last of the V8s

    Show me a pic of the diagram and your harness.
  6. Fx4wannabe01

    Fx4wannabe01 New Member

    Out cleaning my shop today and solved my own question.... It's a jumper...


    If memory serves me correctly, Explorers are lacking the extra single-wire plug. That's why my question has popped in my head ever since looking into doing the swap. Now I'm seriously about to do the swap as my alternator is starting to lack in idle performance.

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