voltage drop with increased rpm?

Discussion in 'General Maverick/Comet' started by superlead76, Dec 30, 2011.

  1. superlead76

    superlead76 Member

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    Hey guys..I'm having a strange issue. My alternator crapped out a couple days ago. No big deal. After I changed it..I'm having voltage drop with increased rpm. It goes from around 14vdc to 12vdc. Here's what I've done so far.

    New alt.
    New Voltage regualtor
    Tested Battery-Good
    Checked and cleaned all grounds

    I can't think what would cause this. Any help is appreciated. Thanks!
     
  2. Resto

    Resto Benders Evil Twin

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    Check Alt Belt and pully for slip?:)
     
  3. superlead76

    superlead76 Member

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    Yep! Checked it. No slip at all.
     
  4. simple man

    simple man Member

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    Check the fuse link that goes from the alternator to the + side of the solenoid. I don't remember offhand the colors, but there are two or three fuse links attached to the + side of the solenoid. :)
     
  5. Mavman72

    Mavman72 Gone backwards but lookin' forward

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    Belt is slipping...Too much resistance in charge wire...Bad alternator. Check all your wire connections from alt/battery and voltage reg. If it was a fusible link, the alt' wouldnt put out at all I should think. Does the alt light on the dash still work. May want to check there for a loose connection.
     
  6. rthomas771

    rthomas771 Member

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    Sounds like a bad alternator. Something inside it is wrong
     
  7. superlead76

    superlead76 Member

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    I thought the same thing but we tested it at the part store and it tested good. Nothing wrong with trying that though! Thanks!
     
  8. Resto

    Resto Benders Evil Twin

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    X3 Bro 3 distributers later. I thought I was going nuts. And I refuse coment on 4 seasons starters or Sears Platinum Batteries.:mad::cussing::deadhorse
     
  9. Craig Selvey

    Craig Selvey Indiana State Rep - MCCI

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    You can take your running/driving car to a battery store, and they can check everthing for you at once: the alternator, battery, voltage regulator, etc. They can tell you what is wrong, if anything. Maybe your guage is bad?
     

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