i have a problem with my alternator

2002 CHEVROLET VENTURE
180,000 MILES
Avatar
JWJTRAIN
  • MEMBER
  • 1 POST
Auto-zone did a test on my battery and told me my alternator wasn't working. So it drains my battery. I took it off and took it in to get it tested through their machine and it was good. I checked all the wiring so i don't know why my alternator wont work. Someone suggested it could be the computer... any ideas?
May 10, 2012 at 10:50 PM
Advertisement
Avatar
ASEMASTER6371
  • ✓ASE Certified Mechanic
  • 52,796 POSTS
  • ASE Certified Mechanic
first, forget about the computer.

the big fat wire behind the alternator should hsve 12 volts all the time

the little connector has a 12 volt hot wire and one from the ignition switch.

Roy
May 10, 2012 at 11:33 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.