Whenever the Alt light comes on, the O2 lift also lights as a bulb check. Most likely your alternator is actually failing due to worn brushes or a bad bearings or both.

Dennis

----- Original Message -----
From: Ed <eduntz@HOTMAIL.COM>
Date: Tuesday, August 23, 2005 9:00 am
Subject: Two warning lights come on TOGETHER

> My alternator and Oxygen sensor warning lights are occasionally
> flashing on and off. I can troubleshoot for the alt and Oxy
> lights, but why would they always flash on TOGETHER? If you have
> any experience with these two lights coming on TOGETHER, please
> let me know. As I said, if one or the other were coming on, I'd
> look to see why that was, but I'm wondering if I have a different
> problem that makes the two lights do this at the same time.
>
> Thanks,
> Ed
>