What an Alternator Is and What It Does
In simple terms, an alternator powers the electric components in your vehicle and charges the battery. It's actually a generator. Knowing how it works will help you identify potential problems if it starts to fail.
As the engine runs, it spins wheels which, in turn, crank a wheel in the alternator. That's what generates electricity. If the alternator starts having problems, you may see an alert on your dashboard. It may stay on or it could go on or off depending on how much electricity the vehicle is using.
If the vehicle dies, you may wonder if it…


