Your alternator might be the unsung hero of your car’s electrical system, but when it fails, it’s not subtle. From dead batteries to flickering lights, a faulty alternator can create chaos fast. Yet many drivers don’t understand what an alternator really does—or fall for common misconceptions that cost them time and money. At Placentia Super Service, we've been keeping vehicles running strong since 1978. Whether you're driving through Fullerton traffic or heading to Anaheim for holiday shopping, your alternator is quietly doing one of the most important jobs under your hood. So let’s set the record straight with some myth-busting facts that every driver in Orange County should know. What Does an Alternator Actually Do? Think of your battery as the starter, and the alternator as the power supply. Once your engine turns on, the alternator kicks in to keep everything running: your headlights, radio, power windows, heated seats, and ... read more