What Does an Alternator Do?

What Does an Alternator Do?

Many Logan drivers often ask, “What does an alternator do?” An alternator sends power to your vehicle’s electrical system while it’s running. Even though most drivers believe that the battery is what powers the car, it’s just used to start it. The alternator functions as a generator and uses the gas engine as its source of energy. Get additional information about the alternator in this handy guide from Truck Ranch.

What Are the Symptoms of a Bad Alternator? 

If you’re worried that your alternator may be on its way out, or you’re noticing any of the symptoms listed below, it’s essential to make the trip to your local Hillsboro or American Fork service shop to have a technician inspect your vehicle:

• Battery warning light appearing on the dashboard
• Dim headlights or interior lights
• Burning rubber smell under the hood
• Devices not charging
• Whining or screeching sound after the vehicle has started
• Unable to start

Signs of a Failing Alternator vs. Battery

There are times when a driver mistakes a failing alternator for a failing battery. To identify the cause of the problem, you’ll want to wait until your truck is unable to start and requires a jump. Jump-start the engine, then remove the jumper cables after it starts. If your truck dies immediately, the issue is most likely your alternator. It’s always good to have an experienced technician look at your vehicle.

How Long Does an Alternator Last?

Typically, an alternator will last between 80,000 and 150,000 miles – or roughly seven years. However, some factors cause the alternator to wear prematurely:

• Alternator quality
• Driving conditions
• Power drain on the alternator

How much is an alternator? It’s often difficult to say what the price is due to different trucks requiring different alternators. Reach out to your local service shop to receive a quote. 

Get Additional Service Tips at Truck Ranch

At Truck Ranch, we’re proud to be your go-to used pickup truck dealership for all of your car-buying needs! We also provide handy car-buying and service tips to help with buying your vehicle, improving your credit score, and how to keep your used pickup truck performing at its best. Contact us today if you have any questions!