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Denver Auto Repair: Signs You Need A New Alternator


August 16, 2017

It’s fairly simple to tell when you need a new tire or when it’s time to replace your brakes, but would you be able to spot an issue with your alternator? The alternator is responsible for keeping the car battery charged and powering the electrical system. Because the alternator plays such an important role, it’s important to bring your car into a Denver auto repair shop if you believe there’s a problem with it. Here are some of the signs that you may need a new alternator:

Dim Lights

As previously mentioned, the alternator provides power to the electrical system in your vehicle, including the lights. If an alternator is slowly starting to fail, the lights inside and outside of your vehicle may be dimmer than usual. This is especially noticeable on the headlights, which may begin to dim down or flicker.

Other Electrical Issues

In addition to dimmer lights, you may also notice that the power windows or power seats are not operating as efficiently as usual either. If you are having trouble with your power windows or seats, this is a sign that the electrical system is not receiving enough power from the alternator.

Strange Sounds

There are several moving parts within the alternator that must quickly spin in order to produce an electrical current. When one of these parts begins to break, it will cause a loud, unusual noise. Many people describe this noise as a high-pitched whine, while others may hear more of a grinding sound. If you hear either one of these noises, bring your vehicle in for repair.

Dashboard Light

You should always look at your dashboard as soon as you turn on the car to see if there are any warning lights illuminated. Some vehicles have lights that will appear when there is a problem with your alternator. Typically, these lights are either in the shape of a battery, or they will simply say ALT, which is short for alternator. What does that light on my dash mean?

Battery Issues

If you are having ongoing battery issues, it’s either because the battery or the alternator has reached the end of its life. How can you determine if it’s the battery or the alternator that’s causing the problem? If you’re having trouble starting your car, try to charge the battery before attempting to restart the vehicle. If the vehicle restarts after the battery has been charged, this means it could be the alternator. If you cannot get the vehicle to restart even after charging the battery, this most likely means that the battery needs to be replaced.

Do you think there’s an issue with your alternator? If so, contact the professionals at Mancinelli’s Auto Repair Center. You can request an auto repair appointment with Mancinelli’s Auto Repair Center online or you can text us at 303-778-9761. We have many same day services available, and we also provide customers with access to a free shuttle to ensure their needs—and their vehicle—are taken care of.