Voltage fluctuations

2001 FORD CROWN VICTORIA
190 MILES • 4.6L • V8 • AUTOMATIC
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LOUISJEFFERSON
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  • 1 POST
I have checked the battery and alternator, which came out good. I changed the alternator and it was doing the same thing. I was told that it could be the alternator connection pug in which I checked it with a test light an meter an it was good. Now I don’t know what to check next.
Feb 18, 2019 at 6:41 AM
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SCGRANTURISMO
  • CERTIFIED EXPERT
  • 4,897 POSTS
Hello,

This sounds like it could be a problem with your voltage regulator. I have included a list of symptoms related troubleshooting for you down below in the diagrams. Please go over it and get back to me with the pinpoint test that corresponds with it and I will get that pinpoint test back to you.

Thanks,
Alex
2CarPros
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Feb 18, 2019 at 10:18 AM