Alternator Facts (Failing Alternator)
April 28, 2024
If you notice that your headlights are flickering at night, that's something to pay attention to. While there could be many different things that could cause that problem, one possibility is your vehicle's alternator.
The alternator takes mechanical energy from the engine and turns it into electricity, in essence a generator. The current it makes charges the battery and supplies power to the vehicle's electrical systems. An alternator is made up of several different parts: a pulley, magnets, coil wires, brushes and a voltage regulator. While your vehicle is running, these parts get a good workout and, after time, they begin to wear out.
Other symptoms of a failing alternator include your vehicle's lights dimming, the power windows going up and down more slowly than they used to, your power seats not moving quite as fast as before.
Another sign of a worn out alternator is engine stalling. Vehicles with fuel injection require a certain amount of power, and when an alternator is going bad, your engine could stall because the alternator isn't cranking out enough of it.
An alternator on its last legs can also fail to charge your battery properly. Sometimes your battery isn't getting enough charge from the alternator and will go dead. It also can be the opposite problem. The battery is getting too much power and will cause the battery to get hot. Your vehicle may give you a clue on the instrument panel. If you see any of these warning lights, take note: Check Engine, ALT, CHARGE or one that looks like a picture of a battery. If that light is on, it's time to have your service facility give it a look.
As mentioned earlier, there are other components of your vehicle's electrical system that can fail, such as a worn out serpentine belt or a malfunctioning voltage regulator. A reputable service facility has diagnostic tools to pinpoint the causes of your problems. And when your issues are fixed, your electrical system will be back to its hard-working self. You'll get a real charge out of it!
Perfect Tune Auto Repair
5434 S. Old US Highway 23
Brighton, Michigan 48116
810.227.9903
https://www.perfecttuneautorepair.com
Need Service?
More articles from Perfect Tune Auto Repair
The Byte Stuff (Your Vehicle's Computers)
August 18, 2025
Nobody has to tell you that computers are a part of so many things in our lives. Smartphones, kitchen appliances, vacuum cleaners, televisions. You name itit has a computer in it. And your vehicle is no exception. The earliest cars relied on the technology of their time, and there was no such ... More
The Neglected Windshield (Windshield Care)
August 11, 2025
You look at it every day, yet you don't really see it. We're talking about your vehicle's windshield, and if you're not seeing it at all, that's probably a good sign. The fact is that unless our windshields get fogged up, hazy or cracked, we don't pay all that much attention to them. Consideri... More
Good Service at Perfect Tune Auto Repair Equals Good Fuel Economy in Brighton
August 4, 2025
Whether we're trying to save money, save gas or save the environment, most of us Brighton drivers have an interest in decreasing fuel consumption. We've all heard about ways to save money on gas in Michigan, but does it really add up to much? How much can we boost our fuel economy through prevent... More