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  1. #1
    Join Date
    Dec 2011
    Location
    Mustang, Oklahoma
    Posts
    3
    Country Flag: United States

    Alternator Wiring

    I have an 88 iroc I bought from this sight with a 410 Donovan small block. At Idle I noticed the alternator did not charge. I checked the wiring and saw it has two brown wires a yellow wire and the red wire. The two brown wires are cut. One went to a ground on the firewall the other leads back with yellow wire. I'm sure the yellow wire is for the guage. I'm wondering about the cut brown wire. the Alternator is not a stock alternator and has a Mitusubishi emblem on the back. It has two prongs in a "T" where the yellow wire is connected to one. I connected the brown wire to the other prong but that did not correct problem. Any suggestions?



  2. #2
    Join Date
    Apr 2001
    Location
    The Druid City
    Posts
    14,744
    Country Flag: United States
    Pictures would be helpful.

    Andrew
    1970 GTO Version 2.0
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    "You were the gun, your voice was the trigger, your bravery was the barrel, your eyes were the bullets." ~ Her

  3. #3
    Join Date
    May 2020
    Posts
    7
    If you rev it up, will it start to charge? I have heard that some alternators will not begin to charge until they see a higher RPM.