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Alternator troubleshooting

Tiny
MICHAELAK
  • MEMBER
  • 2000 CADILLAC DEVILLE DTS
  • V8
  • FWD
  • AUTOMATIC
  • 132,000 MILES
I have a 2000 cadillac dts that will not charge I have replaced the alternator and it is still not charging.I check the volts going to the alternator, the orange wire has 12 volts on it. The red wire has 5 volts. The grey wire has 2 volts on it.
Saturday, April 30th, 2011 AT 1:08 PM

1 Reply

Tiny
CADIEMAN
  • MECHANIC
  • 3,544 POSTS
Red wire is from the battery 12v, the other connector goes the voltage regulater. You my have a bad rebuild. Your battery could be bad and not takeing a charge. Is the charging system light on?When you turn the key on do you see the charge light on?
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Saturday, April 30th, 2011 AT 3:25 PM

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