My battery light came on today and my idle is now 500rpm above normal. The light flickers when I am up around the 3000 range but my car seems to still be running fine. I just installed a new battery and terminals about 3 months ago so I know that isnt the problem...I even tested the voltage and it was fine. Even when I start it up there are no problems. I even checked all my fuses both inside my car and under the hood.
1.) Do you think l should check the voltage between the alternator and battery? Shouldn't this bypass all the wiring and determine if either my cables need replaced ( I did notice a little corrosion on the positive cable) or if my alternator itself is bad?
2.) Could a short to ground be causing enough stress on the alternator to cause my charging system to malfunction? I was messing with my tail lights today and have had problems in the past with bulbs just blowing a week after putting them in. (The battery light came on about 10 minutes after messing with the lights) This is where I think the short to ground might be ....somehow related to the lighting system in my tail lights.
Any info or replies will greatly be appreciated.
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