My alternator stopped working, so I got another.

  • 1 POST
  • 1995 FORD F-150
  • 185,000 MILES

My alternator stopped working, so I got another one for free with wrong bolt holes and rigged it in and it worked fine. Then I got the proper alternator, installed it on the road and on the way home it worked at first but I watched my voltage decreasing all the way home. The next day, I checked it and it was working but then it stopped working again. I put a test light from the negative post to the negative clamp and the light went on which means there is a short. Then I took off the wiring harness from the alt and the light did not go out. I pulled each fuse one by one but the light never went out. What does this mean? Is the alt bad or is it a short preventing the battery from charging?

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Sunday, November 25th, 2012 AT 7:57 AM

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