battery lights on

Reply

  #1  
Old 12-09-13, 06:12 PM
Member
Thread Starter
Join Date: Dec 2013
Location: USA
Posts: 2
Question battery lights on

I recently had an alternator and a new battery installed on my 2003 Ford Taurus , and now battery light stays on. Can anyone tell me what may be causing this . The alternator is charging at 14
 
Sponsored Links
  #2  
Old 12-09-13, 06:16 PM
chandler's Avatar
Banned. Rule And/Or Policy Violation
Join Date: Dec 2005
Location: USA
Posts: 39,968
Welcome to the forums! Check the voltage across the cable clamps as well as the battery posts. The clamps may not have been cleaned properly.
 
  #3  
Old 12-09-13, 06:56 PM
iceman681's Avatar
Member
Join Date: Jul 2012
Location: usa
Posts: 435
when it comes to ford after market alt. there are a lot of duds. for some reason the after market has not got a good handle on the light canceling part of the alt. yes it will charge normal but the darn light stays on. try another alt.
 
  #4  
Old 12-09-13, 08:10 PM
ukrbyk's Avatar
Member
Join Date: Mar 2010
Location: USA/ Pacific NW
Posts: 3,222
iceman reminded me of my Ford adventure. I had THREE alternators in one night installed on my then Taurus. 2 outta da box were bad.
 
  #5  
Old 12-10-13, 07:56 AM
Gunguy45's Avatar
Super Moderator
Join Date: Dec 2007
Location: USA
Posts: 20,937
What the others have said. I have a 01 Mazda Tribute (basically a Ford Escape), same issue. My shop said the only sure way is to replace with a new Ford alternator, no re-builds or aftermarket. Of course the Ford part is some $325 vs just over $150 for aftermarket. Light has been on most of the time (sometimes it doesn't come on) for 3 yrs. Replaced battery 2 yrs ago when it wet bad, but it still charges and starts fine. I'm not paying $500 to keep a light off on a 13 y/o vehicle.
 
  #6  
Old 12-10-13, 04:39 PM
CasualJoe's Avatar
Member
Join Date: Jan 2010
Location: USA
Posts: 9,275
I thought the light only indicated low voltage. If an alternator is charging properly and the battery is good or new, why shouldn't the light go out?
 
  #7  
Old 12-10-13, 06:05 PM
Gunguy45's Avatar
Super Moderator
Join Date: Dec 2007
Location: USA
Posts: 20,937
Joe...
It's all computers. Looking at my available diagrams, appears the light is controlled by a module. I'd guess with a few drops below spec it turns the light on til it runs a certain time within spec. Who knows what their spec is?
 
  #8  
Old 12-10-13, 07:10 PM
Member
Thread Starter
Join Date: Dec 2013
Location: USA
Posts: 2
Unhappy

Gunguy45, Chandler
3 years, so maybe it wont affect my driving, at least I'm hoping .I had the cables post checked.. auto zone said to have fuse checked, but I have no way of knowing which fuse it would be. As a female I must say though, that battery light really makes me nervous. Ill try everyone else's suggestion , and if there's any more , ill be happy to take it.
Thx everyone
 
  #9  
Old 12-11-13, 05:42 AM
CasualJoe's Avatar
Member
Join Date: Jan 2010
Location: USA
Posts: 9,275
Joe...
It's all computers. Looking at my available diagrams, appears the light is controlled by a module. I'd guess with a few drops below spec it turns the light on til it runs a certain time within spec. Who knows what their spec is?
I suppose you are right. I haven't had many charging problems with Ford alternators. The last one I changed was about 7 years ago and that was only because I figured it was due to go out as the F-150 had 140,000 miles on it and still had the original alternator. I have found over the years, however, it is never wise to buy a 1 year guaranteed rebuilt alternator when for just a few more dollars I could buy a lifetime warranted fully remanufactured alternator. One remanufacturer in particular I have had good luck with, the former Delco Remy.
 
Reply

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off


Thread Tools
Search this Thread
Display Modes
'