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An alternator is comprised of just a few simple components, but it plays a crucial role in running your vehicle. Its key function is to help the battery recharge. It turns the energy from the crankshaft into electricity to power the different electrical systems of your vehicle while it's running. When the component starts to fail, you’ll notice several telltale signs, and you should schedule a repair or replacement right away.

Flickering or Dim Lights

Because the alternator is part of your vehicle’s electrical system, it also plays a role in powering all electronic accessories. When the alternator is not generating enough power, you might notice your dashboard lights and headlights beginning to dim or flicker.

Failure to Start 

alternatorWhen the battery is fully charged but you still need to jump-start your car regularly, it’s a sign you have a bad alternator. It’s the alternator’s job to make sure the battery stays charged. A failing alternator won’t keep up with the vehicle’s electrical needs, which results in a weak battery.

Weird Smell 

Another symptom of alternator failure is the smell of burning rubber. Since the alternator is working with a system of belts, failure may cause a belt to struggle and heat up, producing a burning rubber odor. An overheated alternator could also give off a hot wire scent.

Indicator Light 

Most modern cars are equipped with a warning indicator light in the dashboard that alerts you when the alternator is about to fail. It’s either shown as “ALT” or “GEN” and is often triggered when multiple electrical components are running.


When you encounter any of these symptoms, bring your vehicle to Eubanks Auto Electric in De Kalb, TX. Since 1954, these experts have provided starter and alternator repairs on most car and truck models, including ATVs, lawn mowers, forklifts, and tractors. Call them at (903) 667-2081 or visit their website if you have any questions regarding your automotive alternator.

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