Your Auto Repair Shop in Englewood, CO and Thornton, CO

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ATC Auto Repair is your trusted auto repair shop with locations in Englewood, CO and Thornton, CO. We specialize in delivering fast and reliable car and truck repairs, engine replacements, scheduled maintenance, brake replacement, and more. Whether your vehicle needs a quick fix or a comprehensive service, our expert technicians are equipped to handle it all.

We work on all makes and models including: Audi, Acura, BMW, Chrysler, Dodge, Ford, GMC, Honda, Hyundai, Infiniti, Isuzu, Jaguar, Jeep, Kia, Land Rover, Lexus, Lincoln, Mazda, Mercedes, Nissan, Range Rover, Subaru, Toyota, VW, and Volvo. Our team is also specialized in repairing classic cars and diesel trucks, ensuring your vehicle, new or old, gets the expert care it deserves.

We get your car back on the road quickly and efficiently, running at its best, whether it needs engine fixes or a new belt. With transparent service and competitive pricing, we’re the go-to auto repair shop for customers across the South Denver Metro area and North Denver Metro Area.

Our Services

Our auto repair shops in Englewood and Thornton, provide complete auto services to help you drive with confidence and peace of mind. From everyday maintenance to complex repairs, our certified auto mechanics work on all makes and models and focus on safety, performance, and long-term vehicle care.

Engine Repair and Diagnostics

We diagnose and repair engine issues that affect performance, fuel use, and reliability. If your vehicle is overheating, idling rough, or making unusual noises, our team will determine the cause and provide clear repair options.

Transmission Repair and Service

From minor transmission concerns to full replacements, our repair facility has the experience and equipment to restore proper shifting and ride quality. We service both automatic and manual transmissions.

Brake Repair and Safety Inspections

Brake service is critical for safety. We inspect brake pads, rotors, calipers, and fluid to help you stop smoothly and safely. If your brakes feel soft, noisy, or uneven, we will address the issue before it becomes costly.

Tires, Alignments, and Suspension

We offer tire repair, tire rotation, wheel alignments, and suspension work to help your vehicle ride smoothly and handle properly. Proper steering and suspension also help extend tire longevity and improve overall ride comfort.

Oil Changes and Routine Maintenance

Regular oil changes, filter replacements, and fluid checks help maintain your vehicle and save money over time. We follow manufacturer guidelines so your next service is always on track.

Battery, Starter, and Electrical Repair

If your car struggles to start or electrical features are failing, we inspect the battery, charging system, and wiring to restore dependable operation.

Heating and Air Conditioning

We repair heating and air conditioning systems to keep you comfortable year-round. From weak airflow to temperature problems, our technicians restore proper climate control.

Cooling System and General Repairs

Cooling system service helps prevent overheating and engine damage. We also handle general car repair needs, including belts, hoses, and drivetrain components.

Warning Light Inspections and Diagnostics

When warning lights appear, we run detailed diagnostics and provide a clear report of what is present, what matters now, and what can wait. No pressure. Just honest answers.

Fleet and General Auto Services

We support fleet vehicles and everyday drivers with dependable service you can rely on. Whether you are interested in routine upkeep or a larger repair, our team is here to help.

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What Makes Us Your Go-To Auto Repair Shop in Englewood and Thornton?

With ATC Auto Repair, you are choosing professionals who will solve your engine problem with accuracy and great care. We realize how intimidating it may feel to leave your car in the hands of a mechanic, and we do everything we can to make the process as smooth and transparent as possible. Here’s why our customers keep coming back for all their engine repair and maintenance needs:

Expert Technicians

Our team comprises highly skilled technicians with years of experience in every repair made. From complex diagnoses involving your engine to routine maintenance, our experts employ the latest tools and techniques to keep your vehicle running smoothly and safely.

Transparent Process

We believe in full transparency, day in and day out. From diagnosis through repair, we’ll explain what will happen. You will receive a thoroughly detailed estimate upfront so you’re never surprised by hidden costs or unnecessary work.

Customer-Centric Approach

Our customers are at the heart of everything we do. We listen to your concerns, provide honest recommendations, and go above and beyond so that you feel confident with the service we provide. Your satisfaction is our number one priority.

Competitive Pricing

We provide quality repairs and affordably priced repairs. We ensure price competitiveness so that you can obtain the best value without sacrificing quality. Therefore, we have become an affordable choice for engine repair in Englewood and Thornton.

Family-Owned Business

Family-owned and operated, we pride ourselves in building long-lasting relationships with our customers. Treating every vehicle as our own and every customer as if they were family, you will find personal service and attention each time.

Comprehensive Warranty

We fully guarantee all parts and labor. Whether minor repairs or a complete replacement of an old engine with a new one, be assured that your car will be taken good care of. When you choose ATC Auto Repair you’re choosing a team that’s committed to excellence, transparency, and customer satisfaction. Call us today at (303) 761-3333 or book your service online to experience the difference true professionalism makes

Service Areas

At ATC Auto Repair, we’re committed to delivering top-tier auto repair services to customers throughout the South Denver Metro Area. Whether you’re in Denver, Englewood, Thornton, or any of the surrounding communities, we’re just a short drive away from getting your vehicle back on the road. Our skilled technicians proudly serve the following areas:

  • Denver

  • Englewood

  • Sheridan

  • Highlands Ranch

  • Ken Caryl

  • Centennial

  • Lakewood

  • Aurora

  • Littleton

  • Golden

  • Morrison

  • Thornton

  • Northglenn

  • Arvada

  • Broomfield

  • Brighton

  • Westminster

  • Commerce City

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Our 5-Step Engine Repair Process

Schedule a Service

Contact us to book your engine service at a time that fits your schedule.

Diagnosis

Our experienced mechanics will carefully inspect your engine and run diagnostics to identify the problem.

Estimate and Approval

We’ll provide a clear estimate based on the diagnosis. No repairs begin until you approve the service plan.

Expert Repairs

Our team performs all repairs on-site, using high-quality parts to ensure long-lasting results.

Follow-Up

We’ll follow up after your service to make sure you’re completely satisfied and that your vehicle is running smoothly.

Get Reliable Service from Englewood and Thornton's Most Trusted Auto Repair Shop

Looking for reliable engine repair, belt replacements, or any other auto repair service? Get the expert care your vehicle deserves at ATC Auto Repair. Our team of skilled mechanics is here to ensure your car runs smoothly and safely.

Call us today at (303) 761-3333 or book your appointment online to experience top-tier service from Englewood and Thornton’s most trusted auto repair shop. Don’t wait—let us take care of your vehicle and get you back on the road with confidence!

South Denver Location: 3485 S. Zuni St. Englewood, CO 80110

Hours: Monday – Friday: 7:30 AM – 5:30 PM

North Denver Location: 780 W 84th Ave, Thornton, CO 80260

Hours: Monday – Friday 7:30 AM – 5:30 PM
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Expert replacement, repair and installation services on all makes and models. Proudly Serving Colorado Since 1979.

You can trust A-Affordable Transmissions Center to replace, repair, and install transmissions of any make or model. Serving the entire Front Range since 1979. For all of your transmission needs in the greater Denver area, please contact us to schedule a quote.

Katelyn Scoma

These guys are SO great. Great job and a great price! My family and I (and even friends that I referred) drive an hour to come to them. They do great work and have excellent customer care! Even when it was closing time they were so kind and helpful, making sure I understood and was satisfied with everything, instead of just rushing me out the door. 100% recommend them!

Gay Vierra

If you have any transmission work needed you HAVE to bring it to A-Affordable Transmissions Center! Dave is the best!! He has worked on two of my cars and even diagnosed a non-transmission related problem!! He is one of the most reputable business owners I have worked with in a long time!! Choose A-Affordable and you won’t regret it!!

Seth Hughes

Hello, had the transmission in my 66 Ford Fairlane rebuilt in October 2021. Nearly 2 years later still working great no leaks shifts just as nice as it did when I picked it up. Great customer service after the rebuild would totally recommend.

Michael

Take your car here. If you have any transmission issues this is the absolute best transmission shop you will find in Denver. My cars transmission lost reverse gear, and had a slew of other issues going on internally that I didn’t even know about, requiring a complete transmission rebuild. Devin was absolutely phenomenal, and let me know everything that was happening during the entire service. These guys absolutely stand by their word, and work. With 250k miles, I have a rebuilt engine with 50k miles on it, and now a new, rebuilt transmission. Flawless. Another 4×4 lives another day. Drives smoother than ever. Thank you guys!

Cody Dent

Brought my 08 pontiac grand prix for a rebuild of the transmission, car was done within two days of dropping it off and the price quoted was correct and affordable (for a transmission rebuild) the shop is very professional and knowledgeable also friendly and don’t make you feel dumb or belittle you for asking questions. Also check back in with you on their work a week or two later. Would definitely return to these guys for any transmission work I’ll need on any of my vehicles and will always recommend them to friends, family and anyone needing work done. Thank you guys!!

Eleanore Thayer

I can not rave enough about thus place. Randy and his team are fast, friendly, and KNOW what they are doing! I had my clutch replaced here after being less than happy with another company doing it twice and blowing it both times in two years… This team is transparent and care about the quality of their work. If you need transmission work or your clutch replaced, this is your company. They made my Subaru ready for the road and I couldn’t be happier! 10/10 tldr: use this company and you will be a happy camper

Frequently Asked Questions

What are the signs that my engine needs servicing?

If your car is making strange noises, losing power, or showing warning lights on the dashboard, it may need servicing. Other signs include excessive exhaust smoke or frequent stalling. These issues can occur in a variety of models, from Toyota to Honda, and both diesel engines and gas engines are susceptible to these problems.

How long does an engine repair or rebuild take?

The duration depends on the complexity of the repair. Small engine repairs might take just a few hours, while a full rebuild can take several days to a week, whether for a truck or car.

What is involved in an engine rebuild?

To rebuild an engine, all its parts must be disassembled, inspected, cleaned and machined as needed, and any worn or damaged parts must be replaced before the engine is put back together.

Do you offer a warranty on engine services?

Yes, we provide a comprehensive warranty on both parts and labor for all engine services, ensuring you can trust our shops to deliver reliable repairs, backed by a guarantee.

What is the cost of an engine repair or rebuild?

The price may be different depending on what your vehicle needs. The final price depends on things like the year and make of your car, how bad the damage is, and how many parts are needed. Before we start any work, we give you a detailed estimate so there are no surprises.

Can you service both domestic and foreign vehicles, including trucks?

Absolutely! Our skilled mechanics can service various vehicles, from Honda sedans to Toyota trucks. We have several years of experience working on both domestic and foreign models, including diesel engines.

What are the common causes of engine problems?

Engine problems can be caused by several factors:

  • Lack of Maintenance: Skipping regular oil changes can wear down engine components.

  • Overheating: Caused by coolant leaks or a faulty water pump.

  • Component Wear and Tear: Over time, parts like gaskets and belts wear out.

  • Fuel and Ignition Issues: Problems with the fuel system or spark plugs can affect engine performance.

  • Contaminated Oil or Fuel: Using bad fuel or oil can damage your engine, especially in older models.

How is a head gasket repair done?

Head gasket repairs involve removing the cylinder head, cleaning the surfaces, inspecting for damage, and installing a new gasket. Whether your vehicle is a Toyota, Honda, or another model, this precision work helps prevent engine leaks and restores performance.

Can I drive with a broken belt?

Driving with a broken belt is dangerous. A broken timing belt can cause severe engine damage, especially in trucks with diesel engines. We recommend having your vehicle towed to a reliable automotive shop for immediate repair.

What causes belts to break or wear out?

Belts can wear out due to age, heat, or contamination from oil or coolant leaks. Regular inspections, especially for older Toyota or Honda models, can prevent unexpected belt failures.

Service Area

Expert replacement, repair and installation services on all makes and models of Cars, trucks, and SUVs

Denver Metro Pro Since 1979. We proudly serve South Denver, North Denver, and the below Suburbs…

Our Locations

Denver / Englewood
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thornton
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Directions to A-Affordable
Transmission Center

A-Affordable Transmission Care Center proudly serves the Denver Metro Area with convenience at two locations, providing exceptional transmission services. Our first location, strategically positioned in South Denver, caters to the bustling energy of the city, ensuring easy accessibility for our valued customers. Meanwhile, our second location, situated in North Denver, extends our commitment to excellence, offering residents in that area the same reliable and expert transmission care. With both centers, we prioritize efficiency, quality, and customer satisfaction, delivering unparalleled transmission services to keep your vehicle running smoothly on the diverse roads of the Denver Metro Area.

Directions To A Affordable In Englewood

  • Follow I-25 S to US-85 S/S Kalamath St/S Platte River Dr. Take exit 207B from I-25 S - 5 min (4.5 mi)
  • Head southwest on I-25 S - 4.1 mi
  • Use the right 2 lanes to take exit 207B for US-85 toward Santa Fe Dr - 0.4 mi
  • Get on US-285 S/US Hwy 285 S in Sheridan - 6 min (3.9 mi)
  • Continue onto US-85 S/S Kalamath St/S Platte River Dr
  • Continue to follow US-85 S - 3.4 mi
  • Continue straight to stay on US-85 S - 0.2 mi
  • Use the right lane to take the US-285 S ramp to Hampden Avenue - 0.3 mi
  • Continue onto US-285 S/US Hwy 285 S (signs for S Platte River) - 46 sec (0.5 mi)
  • Take W Hampden Ave to your destination - 1 min (0.2 mi)
  • Turn right onto S Brady Ct - 194 ft
  • Continue onto W Hampden Ave - 423 ft
  • Turn right onto S Zuni St - 197 ft
  • Turn left - 82 ft
  • A-Affordable Transmissions Center 3485 S Zuni St, Englewood, CO 80110
  • Take I-25 S to US-85 S/S Kalamath St/S Platte River Dr. Take exit 207B from I-25 S - 11 min (8.9 mi)
  • Head west on I-70 W - 1.9 mi
  • Use the right 2 lanes to take exit 274 to merge onto I-25 S - 6.6 mi
  • Use the right 2 lanes to take exit 207B for US-85 toward Santa Fe Dr - 0.4 mi
  • Get on US-285 S/US Hwy 285 S in Sheridan - 6 min (3.9 mi)
  • Continue onto US-85 S/S Kalamath St/S Platte River Dr Continue to follow US-85 S - 3.4 mi
  • Continue onto US-85 S/S Kalamath St/S Platte River Dr Continue to follow US-85 S - 3.4 mi
  • Continue straight to stay on US-85 S - 0.2 mi
  • Use the right lane to take the US-285 S ramp to Hampden Avenue - 0.3 mi
  • Continue onto US-285 S/US Hwy 285 S (signs for S Platte River) - 46 sec (0.5 mi)
  • Take W Hampden Ave to your destination - 1 min (0.2 mi)
  • Turn right onto S Brady Ct - 194 ft
  • Continue onto W Hampden Ave - 423 ft
  • Turn right onto S Zuni St - 197 ft
  • Turn left - 82 ft
  • A-Affordable Transmissions Center 3485 S Zuni St, Englewood, CO 80110
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