Alternator overcharging

ramones53rd3rd

I've been having flickering lights on my 91 wagon. I changed the alternator about 6 months ago, and this didn't start up until a month ago. I checked all the grounds and cleaned them up. I connected a meter and it would fluctuate, it would never read the same, it would spike up to 15.4 volts and drop as low as 14.3 volts. So I have a few questions, is it bad to be driving like this till I get it fixed? Should I replace the entire alternator? Should I run a seperate ground to the alternator from the battery? Or I've heard it could be a bad voltage regulator? And if so is this an easy fix? Please any help is welcomed, thx.

beauregaardhooligan

Most parts stores can test the alt on the car. I'd run it by one of them.