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2004 Mercury Sable charging system light coming on

Tiny
MUDDPUPPY4390
  • MEMBER
  • 2004 MERCURY SABLE
Electrical problem
2004 Mercury Sable 6 cyl Two Wheel Drive Automatic

the charging system light keeps coming on. We have taken it to the auto parts store and had a diagnostic ran two times and it shows nothing. We have recently put on a remanufactured alternator and it was fine for a couple of months then the charging light started coming occasinaly. Now it is staying on. We replaced the battery yesterday with no change. Any ideas?
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Saturday, December 20th, 2008 AT 3:11 PM

3 Replies

Tiny
LEGITIMATE007
  • MECHANIC
  • 5,121 POSTS
Check wires and connections for corrosion, including to the starter, also the alternator, may have gone bad in that short period, (voltage regulator)
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Saturday, December 20th, 2008 AT 3:37 PM
Tiny
LEGITIMATE007
  • MECHANIC
  • 5,121 POSTS
http://www.2carpros.com/how_to/how_to_test_alternator.htm

check out this link.
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Saturday, December 20th, 2008 AT 3:42 PM
Tiny
RASMATAZ
  • MECHANIC
  • 75,992 POSTS
207 this one here disappeared on me-you took it before I could answer it Could also be the computer controlled of the alternator field generation

See your Charging system EWD below


http://www.2carpros.com/forum/automotive_pictures/12900_alty_40.jpg

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Saturday, December 20th, 2008 AT 3:48 PM

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