Voltage issues

[2000bonny]

I noticed last night on my way home from work that my headlights were flickering. I looked and also noticed my amp meter was also fluxuating. The car seemed to be running fine asside from the lights kept flickering. It did not make a difference what RPMs I was running, or even if the car was moving. My 2000 Bonneville has the original alternator and 181k on her, any pointers??????

[aleekat]

test alternator output and battery. check all battery cables, etc...

[2000bonny]

All that appears ok. I am getting a pretty steady 14.8v output at the alt with the car at idle and watching the headlights flicker. I went and checked the dash amp meter and as that was happening, the meter was fluxuating quickly from about 12-15. I also checked the voltage going directly to the headlights and it is stable at 14.4v.

[aleekat]

Don't be surprise if your alternator goes out. Could be the brushes wearing out. I would double check all the grounds you can find.