the volts on my alternator gauge are all over the place the last 3 days
all three days I checked twice a day and the battery has a full charge
9 volts is about the lowest i've noticed then way up toward the top of the gauge but not in the red
then last night I heard a little grinding noise like a bearing when i opened the hood definetly coming from the alt.
Besides the grinding noise could my gauge be on its way out?
Should I have the whole alternator rebuilt? whats the proper way to test the alt.
is there a way to test the voltage regulator?
Dont know much about alternators so any advice helps...Thanks