New battery new alternator no charge

1994 BUICK LESABRE
145,500 MILES • 3.8L • V6 • 2WD • AUTOMATIC
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TYLER MAYES
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  • 1 POST
I put new alternator on this car I just bought and every time I drive it for a little while the battery drains. the alternator is not charging the battery. what do I do to fix that?
Feb 24, 2018 at 5:45 PM
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CARADIODOC
  • ✓ASE Certified Mechanic
  • 34,321 POSTS
  • ASE Certified Mechanic
Verify the "battery" light on the dash turns on when the ignition switch is turned on. That circuit is the turn-on circuit for the voltage regulator in the generator. If it does not turn on, check the connections in the plug on the back/side of the generator.

Check for full battery voltage on the large bolted-on wire on the back of the generator. If that is missing, we will need to look if that goes right back to the battery through a fuse link wire or if it connects to the solenoid terminal on the starter.
Feb 24, 2018 at 6:47 PM
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