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  1. Alternator not charging

    Isuzu 4BD1T/2T
    I have a 93 isuzu npr with a 4bd2 engine. The battery light and vaccum light is on. Put a voltmeter on and its not charging (12.0-12.5). I have put a test light on the charging fuse while running and no power. I have changed the charging relay and still the same thing. I have also pulled the the...