Why does my battery light come on while driving but once in a while turns off when I turn out my headlights off.

5

Asked by Jan 25, 2011 at 06:45 PM about the 1996 Chevrolet Cavalier Z24 Coupe

Question type: Maintenance & Repair

My starter was replaced and battery a week ago and now the battery light comes on while driving and sometimes will go off when I turn my head lights out, why?

3 Answers

345

Hi..it sounds like the voltage rectifier is going bad inside your alternator..it used to be that you could change them, but not anymore...i'm a manger at an auto parts store and this is a common problem...changing your battery would probably still have been necessary since your car was running mostly on it. Turning off your headlights just takes the load off the electrical system for a while.

4 of 4 people found this helpful.
Best Answer
115

Yeah hes right, you used to be able to buy a set of brushes and a regulator for 20 bucks, now theyre more expensive then the alternators themselves... which motor do you have? i can give you step by step instructions to replace the alt, I also work at a parts store

9 of 9 people found this helpful.
50

Yeah it sounds like you have a bad alternator like these guys are saying most definitely. Another old rule you can do while the car is running take one of the battery post off if the car stays running the alternator is charging if the car goes dead the alternator is no good that's an old school rule that still stands

Your Answer

Add photo

Related Questions

Cavalier

Looking for a Used Cavalier in your area?

CarGurus has 1,014 nationwide Cavalier listings and the tools to find you a great deal.

ZIP:

Search Chevrolet Cavalier Questions

Chevrolet Cavalier Experts

#1 John Saffrahn
John Saffrahn
Reputation 2,930
#2 dandyoun
dandyoun
Reputation 1,330
#3 mbar1
mbar1
Reputation 1,180
View All

Related Models For Sale

Used Honda Civic
811 Great Deals out of 88,099 listings starting at $1,299
Used Chevrolet Malibu
1,062 Great Deals out of 77,909 listings starting at $1,500
Used Chevrolet Impala
591 Great Deals out of 34,068 listings starting at $899
Used Chevrolet Camaro
242 Great Deals out of 31,193 listings starting at $369
Used Honda Accord
946 Great Deals out of 77,735 listings starting at $899
Used Toyota Corolla
860 Great Deals out of 70,584 listings starting at $1,874
Used Ford Mustang
543 Great Deals out of 45,845 listings starting at $1,999
Used Toyota Camry
1,104 Great Deals out of 90,757 listings starting at $1,599
Used Chevrolet S-10
5 Great Deals out of 1,311 listings starting at $2,400
Used Ford Taurus
270 Great Deals out of 20,573 listings starting at $1,995
Used Pontiac Sunfire
323 listings starting at $2,100

Content submitted by Users is not endorsed by CarGurus, does not express the opinions of CarGurus, and should not be considered reviewed, screened, or approved by CarGurus. Please refer to CarGurus Terms of Use.