Auto Tech Checking under car hood

Schedule Service

Your Nearest Store:

7980 S Broadway
Littleton, CO
303.515.7308

firestone storefront
Most stores are open nights and weekends

Store Hours:
Day(s) Hours
MON-FRI: 7:00am-7:00pm
SAT: 7:00am-6:00pm
SUN: 9:00am-5:00pm
Schedule An Appointment

Alternator Replacement & Repair

VISIT A FIRESTONE COMPLETE AUTO CARE STORE NEAR YOU AND DISCOVER THE DIFFERENCE WE MAKE.

ALTERNATOR REPAIR SERVICES

Alternators are critical to the overall health of your vehicle. The alternator is what charges your battery. The battery then provides power to the electrical system. If the alternator isn’t working properly, your car will only be as powerful as your remaining battery storage. If you're experiencing any alternator symptoms, get it checked out by an expert technician at your local Firestone Complete Auto Care. After a full system charging test, we can perform an alternator repair or replacement if required, and get you back on the road in no time.

WHAT DOES AN ALTERNATOR DO?

While the battery is essential for starting your car, the alternator keeps your car running while you drive. The battery powers most car’s electronic components including the headlights, electric steering, power windows, windshield wipers, dashboard instruments, and the radio. The alternator charges the battery, and the battery supplies the electricity your vehicle needs to continue running.

The alternator works by turning mechanical energy into electrical energy. When your engine is on, it powers a drive belt that rests on a pulley attached to the alternator. The pulley turns the alternator’s rotor shaft, which spins a set of magnets inside a coil. These spinning magnets generate alternating current around the coil, which is then channeled to the alternator’s rectifier. The rectifier converts that AC power into DC power. Most passenger vehicles operate on a 12 volt DC system.

WHEN TO SCHEDULE AN ALTERNATOR SERVICE APPOINTMENT

If you’re experiencing symptoms or signs of a bad alternator, schedule a starting and charging system test as soon as possible. If you’re reaching the end of your alternator lifetime, schedule an appointment with a Firestone Complete Auto Care location near you. Our expert technicians will inspect your alternator and make service recommendations to help keep your vehicle running newer, longer.

ALTERNATOR REPAIR

Immediate attention to an alternator issue can help you avoid further damage. During the vehicle starting and charging system check, our expert auto technicians will test your battery, test starter output and test alternator output. We'll replace your vehicle's alternator as necessary to keep your vehicle running newer, longer.

WHAT HAPPENS WHEN AN ALTERNATOR WEARS OUT?

Can a car run with a bad alternator? Potentially. However, a bad alternator may not sufficiently charge the battery, which means your vehicle won't have enough power to start or run for very long.

Auto Care Tips & Advice

Filter By:

Image focus on person holding car key with blurred vehicle in background.
Driving

What To Look Out For When Buying A Used Car

Shopping for a used car can be exciting, but it requires careful consideration and attention to detail. Here are a few things to look for when buying a used car.


Read More
Car driving on unplowed highway
Driving

What Wheel Drive Is Best In Snow?

What drivetrain is best for snow? Learn the pros and cons of RWD, FWD, AWD, and 4WD in snowy conditions and how to choose the proper tires for your drivetrain!


Read More
Man preparing car for winter drive
Driving

How To Get A Car Unstuck From Snow

The air is crisp, the snow is sparkling – and your vehicle will not budge. Stop spinning your wheels and use these tips and tricks for getting unstuck.


Read More
LOAD 3 MORE
SHOWING 6 OF 12
View More Articles

Find Store

Find a Different Location

Stores Near You

Do you want to change your Preferred Store?