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Thread: alternator issues
          
   
   

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  1. 03-28-2015 06:32 AM #1
    R Pope
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    Idiot lights usually show if the alternator is charging, not if the whole system is gaining or losing power. For that you need a gauge. I would check the alternator and regulator.
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  2. 03-28-2015 05:36 PM #2
    roadster
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    alternator issues

     



    Quote Originally Posted by R Pope View Post
    Idiot lights usually show if the alternator is charging, not if the whole system is gaining or losing power. For that you need a gauge. I would check the alternator and regulator.
    I have a guage and it drops to 12 volts
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  3. 03-28-2015 05:43 PM #3
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    NTFDAY
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    Weak diode(s), cold solder. Is it under warranty?
    techinspector1 likes this.
    Ken Thomas
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  4. 03-31-2015 07:09 AM #4
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    Duece coupe
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    Quote Originally Posted by roadster View Post
    I have a guage and it drops to 12 volts
    Assuming the gauge is good, its time for a new alternator. The voltage (with car running) should never be 12 volts. You are running on only the battery at that point.

    There are many videos online showing how to replace the diodes / voltage regulator. I saved my chrome alternator doing this for about $30.00 Its not hard to do.
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  5. 03-28-2015 05:40 PM #5
    roadster
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    Quote Originally Posted by R Pope View Post
    Idiot lights usually show if the alternator is charging, not if the whole system is gaining or losing power. For that you need a gauge. I would check the alternator and regulator.
    I'm reasonably sure the alternator is good for 90 amps so it should be fine.Mind you perhaps it is,nt providing the output
    Last edited by roadster; 03-28-2015 at 05:50 PM.
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