battery light...

[absolom]

so my alt went out about 2 years ago and i got it rebuilt and it's been flawless so far, running an optima red top

i've got 12.4 volts with car off and ~14 volts at idle, so everything is charging good, but i get an intermittent battery light virtually all the time...

what's up with that?

 

[Digital]

so my alt went out about 2 years ago and i got it rebuilt and it's been flawless so far, running an optima red top

i've got 12.4 volts with car off and ~14 volts at idle, so everything is charging good, but i get an intermittent battery light virtually all the time...

what's up with that?

I've only had that battery light come on when my alt was totally shit, never on a bad battery, or dead, or on the way out battery.
It would lead me to think your alt is having a problem under load or you have a wiring issue.
Besides that I really don't know since I'm not familiar where that light gets its signal from, hopefuly someone can come in and school us both further.

 

[Senkak]

Your alternator is most likely on the way out again.
These cars love to eat them.

 

[TwinTurbo4vGT]

how many times do you drive the car? does it sit sometimes? Optima batteries suck ass, they lose 20% of their charge everytime they sit for awhile.

 

[MoKo_03SVT]

+1 on the alternator.

the only time i've seen the battery light come on (on mine), the alt was on its way out, and didnt last much longer at all.

 

[absolom]

i'm hoping it's not the alt, such a bitch to change

like i said, at idle i've got 14 volts, so we'll see

 

[MoKo_03SVT]

let us know, when ya find out! =]

 

[latemodelracer2]

Have you done the classic pull the cables with it running then watched the voltage?