You may have heard the word "alternator" mentioned at your last auto service appointment (or by your well-intentioned uncle over a family dinner), but all this chatter still begs the question, "How important is the alternator in your vehicle?" What does this complex-looking auto component do, and why does it matter to the health of your Volvo car? Use our handy guide to answer these questions.
Alternators 101: What They Are & How They Work
Your Volvo vehicle is made up of thousands of reliable parts, all working together so that you can jump behind the wheel, buckle that seat belt, and take off without a second thought, but underneath your car's hood is an orchestra of moving components. If you drive a gas-powered vehicle, one of those parts is the car alternator.
Car alternators are electric generators that convert one type of energy into another to power your car's battery. More precisely, alternators convert mechanical energy into alternating current, or AC, electrical energy. In fact, the alternator got its name from this very process!
Your battery provides the huge electric burst required to start your internal combustion engine. After this start, the alternator helps replenish your car's battery and feeds energy to most of your car's electrical components, including the headlights, power windows or seats, the dashboard instruments, and the power steering system.
Alternator Replacement: When & Why to Make Repairs
Because this machinery is built to last years, you may never need an alternator replacement. However, if you notice any of the following warning signs, you should take your car to be serviced as soon as possible:
- Dimming or flickering headlights
- Weakened car battery that frequently needs a jump
- Trouble with power windows, radio, or other cabin electronics
- Abnormal whining or growling noises beneath the hood
- Ignition issues, including clicking or cranking noises
While these indicators are helpful tools and can bring alternator problems to your attention, it's best to bring your car to a trusted service center for diagnostics and repairs. Our Jacksonville, FL, dealership offers high-quality automotive care at our Service Center. You can conveniently schedule service online, by phone, or in person at O'Steen Volvo Cars of Jacksonville!
Frequently Asked Questions
Is it bad to drive without an alternator?
Yes, driving without a functioning alternator is dangerous. Your vehicle can only drive for a short time with a failed alternator because, without its continual power supply, your battery will die, and your engine cannot restart. If you see any of the above-mentioned warning signs of a failing alternator, visit our Volvo Service Center for a full diagnostic assessment.
What happens if you don't replace an alternator?
If your alternator fails and you do not replace it, your battery will quickly drain, and you will be unable to start and drive your vehicle. Fully charged batteries might last a few hours or a few days, but rather than take the risk, it is best to bring your car in for service as soon as you suspect that your alternator might be failing.
Does an alternator make a car run better?
An alternator is crucial for your car to run at all. A healthy alternator allows your car's electrical system, including your power windows, radio, touch-screen displays, and power steering, to function properly. However, more importantly, it supplies power to the battery. Without it, you won't be able to start or sustain driving for long. Therefore, have any strange behavior from your car's electric system inspected before it can impact your safety.