Auto Repair in Murray & Paducah

If you’ve ever had your car suddenly struggle to start, your lights dim while driving, or a battery warning light pop up on your dashboard, there’s a good chance your alternator was involved. At Harlan Automotive, we talk with drivers in Western Kentucky, Southern Illinois, and Northeast Tennessee all the time who ask, “What does my alternator actually do?” Simply put, your alternator is what keeps your vehicle powered while it’s running. It works hand-in-hand with your battery, but they do very different jobs. Your Alternator: The Power Plant While You Drive Your car battery’s main job is to start the engine. Once the engine is running, your alternator takes over. The alternator: Charges your battery while you drive   Powers your headlights, radio, power windows, and dashboard   Supplies electricity to engine computers and fuel systems   Keeps your vehicle running consistently   Think of it like this: Your battery is ... read more