The term “alternator” is heard often when speaking about vehicles because it is an essential part. In simple terms, the alternator keeps the car battery charged, allowing ease when turning on the vehicle and its electric accessories.
A failing vehicle alternator can manifest several symptoms, indicating potential issues that can become incrementally worse. If you’re experiencing problems, you may find the vehicle will not start or stay on for more than a few minutes once started. Other signs of a failing alternator include:
- Weak or dead battery
- Dim and irregular accessory lighting
- Odor of rubber or wires burning
Common Signs of a Failing Alternator
Dimming or Flickering Lights
The most common and noticeable sign of alternator issues is dimming or flickering headlights, dashboard lights, and interior lights. This occurs when the alternator cannot provide enough power to keep the lights consistent and bright. It is a symptom of the voltage regulator failing.
Warning Light
With many new vehicles, a warning light will appear on the dashboard. Many times, this light is mistaken for an indication of a bad battery. However, sometimes is just the alternator and the voltage dropping. The alternator typically is between 13-14.5 volts, so when that number drops, this triggers the vehicle to display the dashboard warning light. It is best to take the vehicle to a trusted mechanic for an alternator inspection to avoid getting stuck with a car that will not start.
Weak or Dead Battery
A weak or dead battery can be attributed to several potential causes. A failing alternator, however, is a common culprit. Many issues can cause a dead battery, such as leaving your lights on overnight. Jumpstarting the vehicle is one way to determine if the problem is with the battery or alternator. If the vehicle starts right away and stays running, the battery may need replacing. If the vehicle turns over and runs for a bit, but then turns off, there is likely a problem with the alternator. If the battery is replaced and the vehicle is still having trouble starting, the alternator is not charging the battery sufficiently.
Difficulty Starting
Trouble starting the vehicle’s engine might mean the alternator is failing and not charging the battery. The battery provides power to the starter motor, and if the alternator is failing to charge the battery, the starter may not receive sufficient power to crank the engine over. You will likely hear the sound of clicking when turning the key.
Strange Noises or Smells
When you can hear a growling or whining noise coming from under the hood while standing outside of a running vehicle, there is either an alternator or a drive belt issue. This would need to be checked by a professional alternator repair technician immediately. These noises can indicate many things, from worn-out bearings to issues with the internal components of the alternator itself.
Stalling or Misfiring
A failing alternator will cause irregularities in engine performance. This occurs when the alternator isn’t providing enough power to keep the engine running smoothly.
In Summary
Recognizing the signs of a failing alternator is important for maintaining the functionality of your vehicle. From dimming lights to difficulty starting, these symptoms can escalate if not addressed promptly. If you suspect your vehicle may have alternator issues, it’s best to consult with a trusted mechanic for a thorough inspection and necessary repairs.
Contact Hollenshade’s for Quality Baltimore Alternator Repair and Mechanical Services
If you’re experiencing any of the mentioned symptoms or suspect alternator trouble, don’t hesitate to schedule an appointment with Hollenshade’s. With our expertise and commitment to excellence, we’ll ensure your vehicle receives the attention it needs to keep you safely on the road. Trust Hollenshade’s for reliable alternator repair and comprehensive mechanical services in the Baltimore area.