Our wagon’s stupid battery light has been flashing on and off. In case you don’t know, the battery light doesn’t warn you there’s a problem with your battery. It warns you that there’s a problem somewhere in your car’s electrical system, most likely the alternator, but maybe not, maybe it’s just a loose belt, but mostly likely the alternator, though maybe not a major problem, maybe it’s just that the brushes are dirty or worn, but don’t count on that, probably you need a new alternator. It could be the voltage regulator’s not regulating, but with the cost of labor replacing that will ding you almost as much as installing a new alternator, so you might as well give it up and spring for the alternator, unless it is the brushes, in which case, if you have the know-how you could try replacing them yourself and see if that works, like you’re that lucky. Buy the new alternator already, you schnook! At any rate, this is what I would like to be doing tomorrow.
How to Replace Worn Alternator Brushes -- powered by ehow
But since I don’t have the time, or the skill, what I’ll be doing tomorrow is dropping the car off at the shop with the instructions to tighten the belt and clean the brushes and then waiting around for the phone call from the mechanic telling me I need to replace the alternator.