2003 Buick Lesabre Battery is good and Altnator is good but is not charging the battery, I have no idea what it could be??
Had battery checked, I had altanator checked and had both checked and it is not charging from altanator no volts getting to battery. I have no clue what else it could be
Cars & Trucks - Buick - LeSabre - 2003 Buick LeSabre
Answers & Comments
If the alternator is not charging then it is bad..
Are you saying the alternator is charging but not getting to the battery? If this is correct then how did you test the alternator?
Some of these buicks have a small relay fuse box on the side on top of fender well. follow battery cable. positive cable, follow to box, where this cable connects to box, to power this box, there is a stud that cable sits on, this sometimes melts plastic area on the box where stud sits and causes a bad connection but when this happens it will not allow car to start and your problem is just the charging but check it anyway and also let me how you tested alternator.
i tested alternator at an auto store they had a bachine I took it out and they tested it..I will have to look for that box you have mentioned thanks I will keep you posted on my results, will take a look tommarow
Chances are its the wire between the alternator and the battery, or the circuit that goes to the warning light on the dash. The warning light powers the volt regulator in the alternator which "turns on" the alternator.
The wire between the alternator and the battery is designed to burn and cut the connection much like a fuse.
You may have to get a shop manual or repair book to get the wiring diagram needed to troubleshoot the circuits.