1995 Buick Skylark ABS Light Keeps Coming On While Driving Now Turn Heater

1995 BUICK SKYLARK
120,702 MILES
Avatar
MEGHANWHITLOCK
  • MEMBER
  • 1 POST
My abs light keeps coming on while driving. Now when i turn on the heater to defrost my front windows the voltage light comes on. The car breaks just fine and starts just fine. What could the problem be? I went in auto zone today where i had just got a new battery from the month or 2 before the hooked up the battery tester and the car died. They say its a alternator but i don't know if i believe them.
Dec 11, 2012 at 2:57 PM
Advertisement
Avatar
CARADIODOC
  • ✓ASE Certified Mechanic
  • 34,321 POSTS
  • ASE Certified Mechanic
Why would you doubt the obvious definitive test? Generator failures on '87 and newer GM vehicles is extremely common. Very often people go through four to six of them in the life of the vehicle. You already did what is needed to prevent repeat failures. That is to replace the battery unless it is less than about two years old. These generators develop huge harmful voltage spikes and the battery is responsible for dampening and absorbing them. It loses its ability to do that as it ages.

Have the generator replaced. The ABS warning light came on because of the low system voltage caused by the inoperative generator. It knows it can't do its job with low voltage.
Dec 11, 2012 at 10:20 PM
Join 2CarPros for free, one of the most advanced car repair communities on the internet. From first-time drivers to seasoned mechanics, everyone is welcome to reply, share details, and get better answers. You can add a temporary image or video first; uploads are limited to 20 MB.
Ask a Free Question
Repair Safety Notice: This information is for general instructional purposes only. Vehicle repair can be dangerous. Verify all information, follow manufacturer service procedures, use proper tools and safety equipment, and consult a qualified repair shop when needed.