why wont alternator charge?

2002 PONTIAC TRANS AM
75,000 MILES
Avatar
JOYMARSHALL
  • MEMBER
  • 2 POSTS
engine light on,battery and alternator are new, found broken prong on pcm, replaced pcm, very frustrating, car still not charging, have checked fuses, does not seem to have an alternator fuse. help!
Oct 6, 2012 at 7:20 PM
Advertisement
Avatar
CARADIODOC
  • CERTIFIED EXPERT
  • 34,306 POSTS
Does the battery warning light turn on when you turn the ignition switch to "run"? If it does, does it turn off when the engine is running? Do you have a digital voltmeter and know how to use it?
Oct 6, 2012 at 7:46 PM
Avatar
KHLOW2008
  • CERTIFIED EXPERT
  • 41,814 POSTS
Engine Light on means a fault has been detected by the engine management system. Did you check for trouble codes?

Why do you think it is the alternator that is not charging?
Oct 6, 2012 at 8:07 PM
Advertisement
Avatar
JOYMARSHALL
  • MEMBER
  • 2 POSTS
I very much appreciate your quick response,but as I was typing my question my husband found a broken wire going to the alternator and repaired it which fixed my charging problem. Again, thank you
Oct 6, 2012 at 9:47 PM
Avatar
KHLOW2008
  • CERTIFIED EXPERT
  • 41,814 POSTS
You're welcome. Glad to know the problem has been fixed.
Oct 6, 2012 at 10:04 PM