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(303) 443-0145

Our Shop:

4747 Pearl St V4, Boulder, CO 80301

Hours:

Mon–Fri: 7:30 AM–9:00 PM | Sat: 7:30 AM–5:00 PM

Alternator Replacement Services in Boulder, Colorado

EXPERIENCED TECHNICIANS · 36/36 NATIONWIDE WARRANTY · FINANCING AVAILABLE

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CARFAX TOP-RATED SERVICE CENTER 2024 & 2025

new car Converting Mechanical Energy to Electrical Energy Inside a Car close up

Think of the alternator as your car’s electrical energy generator. It works alongside the battery to power the electrical components of your vehicle while the engine is running. Not only does it convert mechanical energy into electricity to power the car’s systems, but it also keeps the battery charged. If alternator trouble occurs, the battery can get drained, leading to an engine stall.

If your car’s alternator is malfunctioning, HTC Automotive in Boulder, CO, has got your back with reliable alternator services. Our skilled technicians provide electrical and engine diagnostics, alternator repair, and other electrical auto repair services to keep your vehicle charged and road-ready. Contact us to get the problem taken care of today!

Signs of a faulty alternator

Your vehicle relies on a functioning alternator to keep the battery charged and the electrical components running smoothly. When the alternator begins to fail, it can compromise everything from your vehicle’s engine to your interior electronics. Here are some common warning signs that may indicate a failing alternator:

  • Dim or flickering headlights
  • Trouble starting or frequent dead battery incidents
  • Malfunctioning power windows, radio, or interior lights
  • Burning smell or whining noise coming from under the hood
  • Battery or alternator warning light illuminated on the dashboard
  • Sluggish performance from the electrical components

Any of these signs can quickly lead to bigger issues if left unchecked, and you don’t want a failing alternator to leave you stranded. Schedule an appointment with HTC Automotive Repair—your trusted auto repair shop in Boulder, CO, and we’ll help you with any alternator repair service that’s needed.

HTC professional alternator services include

Our exceptional alternator repair and replacement services are designed to guarantee you a smooth, fully-charged journey on any highway in Boulder, CO and beyond. Our alternator service options include the following:

Diagnostic check

The first step in the alternator service process is a thorough diagnostic check. Using state-of-the-art equipment, the technicians at HTC will inspect your alternator to pinpoint any issues. This includes testing the voltage output, checking for loose connections, and assessing the overall health of the alternator.

Alternator repair and replacement

Depending on the diagnosis, the technicians at HTC will recommend the appropriate course of action. In some cases, minor repairs or adjustments may be all that’s needed to get your alternator back in shape. However, if the component is beyond repair, they offer high-quality new alternator replacements from reputable brands to ensure optimal performance and reliability.

Belt inspection and replacement

The alternator is typically driven by a belt connected to the engine’s crankshaft. Over time, these belts can wear out or become loose, affecting the performance of the alternator. As part of the service, HTC technicians will inspect the belt for signs of wear and replace it if necessary to prevent future issues.

Battery testing and maintenance

Since the alternator works closely with the battery, it’s essential to ensure that the battery is in good condition as well. As part of the alternator service, HTC offers battery testing to check its health and performance. They can also perform maintenance tasks such as cleaning the battery terminals and ensuring proper connections to maximize battery life.

Electrical system check

In addition to the alternator and battery, HTC technicians will conduct a comprehensive check of your vehicle’s electrical system. This includes inspecting wiring, fuses, and other components to identify any underlying issues that may affect the performance of the alternator.

NEED HELP?

If you would like to schedule an appointment, please let us know the date and time that works best for you and we will do our best to accommodate your request.

OUR SERVICES

Boulder Auto Repair Services With a Reputation for Trust

From routine maintenance to complex repairs, we provide a full range of services.
Some of our most common include:

Every repair at HTC Automotive is completed by experienced technicians using advanced diagnostic tools to ensure accurate, reliable results. From routine maintenance to unexpected repairs, we deliver dependable auto repair services with clear, honest recommendations.

Serving Boulder and the Front Range, including Broomfield, Erie, Gunbarrel, Lafayette, Longmont, Louisville, Niwot, and Superior, CO, we help keep your vehicle safe, reliable, and performing at its best.

VEHICLES WE SERVICE

Expert Service for Every Major Make

THE HTC ADVANTAGE

Why Choose Us

Emphasis on Quality Service​

Financing Through Koalafi

Certified Warranty Repair Shop

Complimentary Check Engine Light Code Scan

36-Month/36,000-Mile Nationwide Warranty

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Serving the Area for Over 20 Years

Testimonials

HERE'S WHAT YOUR NEIGHBORS HAVE TO SAY ABOUT US!

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lauren palmer profile picture
lauren palmer
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Had such a good experience and cheaper than other quotes I had. Wayne was very nice and communicative!
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Paul Vacca profile picture
Paul Vacca
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Got us in and out, we were on vacation from nebraska, needed rear brakes. Got us done quick. Guys were great. Thanks. Would reccomend.
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Matthew Weidner profile picture
Matthew Weidner
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Saved me a ton of money on a repair that I misdiagnosed. Very grateful! Will definitely be back again
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Jihoo Jeong profile picture
Jihoo Jeong
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Addy was the best guy. I was tired of getting ripped off from repair shops, but he took care of it very nice. Service was perfect, nothing bad to say. I’ll get my vehicle work done here until I leave CO.
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Tay Loftin profile picture
Tay Loftin
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Fast, comprehensive personal service.
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Bamboo profile picture
Bamboo
Google star 1Google star 2Google star 3Google star 4Google star 5Trustindex verifies that the original source of the review is Google.
They owned it, made it right, and earned my trust. HTC missed a front-end noise on my first visit, and another shop caught it. I called HTC back not sure how it would go. Wayne made it one of the best customer service experiences I've had! He listened, didn't get defensive, asked good questions, took full responsibility, and then actually followed through to make it right. He and the team truly went above and beyond to help me in a way I’m genuinely impressed by. Everyone makes mistakes. How you handle them is what counts. Wayne turned a frustrating situation into the reason I'll keep coming back and sending people to HTC. Thanks HTC!
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Valentine Gane profile picture
Valentine Gane
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They performed the transmission service for me. Really happy with their communication. Good pricing and knowledgeable staff. I got great advice on what they suggested for service. I will definitely come back.
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Bill profile picture
Bill
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They were really nice to work with and helped me not be nervous about the safety of my vehicle.
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demeatrie profile picture
demeatrie
Google star 1Google star 2Google star 3Google star 4Google star 5Trustindex verifies that the original source of the review is Google.
Had a sensor replaced in no time. Easy. No fuss. It has what I want in an auto shop. Honest straight forward work.
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