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The alternator ensures your vehicle starts and works as it should. If you’re having starting problems, find out whether this part of your vehicle is faulty and if you need a Tucson alternator repair service.

The alternator generates electricity that your car needs to power everything from the taillights to the radio. The battery stores the electricity the alternator creates and saves it for cases when you need power, even when the engine isn’t running.

Why Is My Car Not Starting?

When your car refuses to start, it’s natural to feel alarmed and assume the worst. However, don’t let panic take over. 

The issue may lie within one of the car’s interconnected components, the battery, alternator, or starter. Identifying the malfunctioning part can be tricky, but addressing it can save you from undue stress and unwarranted worries.

If the starter is in good condition, the next thing you must check is the battery, which should last up to five years. The alternator charges the battery as you drive. However, its ability to hold charge decreases over time, and you’ll eventually have a dead battery.

Meanwhile, a dead battery may indicate a bad alternator. If the latter is defective, it can’t charge the battery even if it’s in good condition.

Additionally, the alternator provides electricity to some of the vehicle’s vital parts. If this component is defective, your battery will eventually run down and stop working.

What Happens to a Car with a Faulty Alternator?

If the alternator stops working, you’ll encounter problems with your car’s electrical system. For example, the headlights go out while driving on the highway. The same thing could happen to the wipers, radio system, and other electrical accessories.

Modern vehicles have a warning light that tells drivers if there’s a problem with the alternator. However, if you are unfamiliar with the inner workings of your vehicle, it’s best to bring your car to a mechanic specializing in Tucson alternator repair.

Can You Drive With A Faulty Alternator?

You can drive your vehicle even with a defective alternator. However, you can only do so for a short time.

How far your car will go without a working alternator depends on the battery’s reserve capacity (RC). Check the battery for a sticker that specifies the RC.

For example, if the RC is 160, you can run your vehicle for 160 minutes. After that, the reserve capacity becomes shorter because it needs to keep the other car components running, such as the engine and the headlights.

Driving with a faulty alternator puts you and your passengers at risk because it may lead to problems with the engine and other electrical components. In addition, you may find yourself stranded in a remote area or in the middle of traffic when your car dies because of a bad alternator, and you need more resources to jump your vehicle.

Do You Have A Bad Alternator?

You may need help determining whether you have a bad alternator or battery.

Does your vehicle go out immediately after jumpstarting it? If yes, then the alternator is problematic.

Aside from starting problems, dimming interior lights is another sign of a bad alternator. You’ll also notice the headlights getting brighter when you accelerate and dim as you slow down the car.

Moreover, screeching or growling noises may signal alternator issues. You may smell burning rubber or hot wires if there’s no unusual sound. 

What causes the alternator to fail? Common reasons include having an old alternator, a blown fuse, or a faulty pully belt.

Schedule an appointment with a mechanic immediately if you notice these red flags. We’ll do our best to fix your car problems quickly so you can go back on the road as soon as possible.

Cost of Tucson Alternator Repair

The alternator’s repair cost depends on your vehicle’s make, model, and age. Older and less expensive cars are cheaper to fix compared to modern, higher-end vehicles fitted with complex components.

You also need to factor in the labor costs. Some vehicles have complicated setups, making fixing the alternator more challenging and expensive.

Meanwhile, basic car warranties may not cover alternator repair. However, fixing the alternator is usually covered if you have an extended auto warranty covering the electrical system.


The alternator provides power to your car’s electrical system. It also recharges the battery as you start your vehicle.

Your car may still run solely on the battery if you have a faulty alternator, but it’ll only last for a short time. Jumpstarting the vehicle is sometimes possible if the battery has enough power to keep running.

However, replacing the alternator is essential. Let Accurate Service Inc. help if you need a Tucson alternator repair service.

We offer alternator repair services for various vehicles in Tucson, AZ. We’ve been in business for over 21 years, giving us extensive experience in this field.

Our certified mechanics will conduct an alternator test and perform the necessary repair and replacement. Call us now at (520) 622-7685 for more information about our auto services.