Battery Light Coming On??

[bjtheman1]

I swear it's always something here lately....

My battery light is now coming on, but it comes on then goes off and so on. It comes on after a few mins of driving but when I get on it goes off then comes back on.

My battery & alternator are both less than 3 months old, I checked my battery and it's showing 90+% charged. This morning checked my voltage on the battery with the car on & off and everything is fine.

What else could be causing this? It just started over the past few days

[dee]

Test the alternator and make sure it's not putting out any AC voltage.

[turbos66coupe]

Alternator is probably got a bad regulator.

[bjtheman1]

Still having issues. I've had the battery & alternator load tested and both were fine. My battery light still comes on and I noticed yesterday when I had my air on high that when at a stop it slows down then speeds up when I drive. ??? WTF??

[lowthreeohz]

Test the alternator and make sure it's not putting out any AC voltage.

bingo bango

[krazy kris]

does your battery happen to be gel filled?

[bjtheman1]

does your battery happen to be gel filled?

nope

[krazy kris]

belt?

[bjtheman1]

belt?

Haven't checked that yet, how would I know if it's the belt?

[Blackpony]

Check the electrical connections make sure they are good.

[krazy kris]

Haven't checked that yet, how would I know if it's the belt?

If its cracked, weathered looking, loose, squealing, slipping or the inside is shiny. I just went and replaced the belt on my aunts car and it had one whole tooth gone

[scootro]

check the idler pulleys! worth a shot.. also check all your fuses

[d1tko]

Still having issues. I've had the battery & alternator load tested and both were fine. My battery light still comes on and I noticed yesterday when I had my air on high that when at a stop it slows down then speeds up when I drive. ??? WTF??

check alternator pig tail
also check the conection inside the alternator for the pigtail...

[gip99gt]

Alternator is probably got a bad regulator.

X2

[bjtheman1]

OK, now I give up!

I installed my new PA Performance Alternator yesterday, upon removing the old one I found that a piece of the back of it had broke off. So after I installed the new one OF COURSE my battery light comes back on! I just don't get it