Diesel Repair in Fort Collins

Clear Diagnostics for Every Diesel Vehicle, Foreign or Domestic

At Christian Brothers Automotive Fort Collins, we service diesel and gasoline vehicles of any make or model, whether foreign or domestic. Our ASE-certified technicians use manufacturer-quality equipment for diagnostics, maintenance, and repairs.

Diesel engines rely on distinct fuel, turbocharging, starting, and emissions systems. We run thorough computer-assisted diagnostics on every vehicle, then walk you through the findings in plain language. You remain in control: we don’t perform repairs or maintenance without your permission.

Call (970) 540-4050 to schedule diesel repair and get clear answers about what your vehicle needs.

Local Ownership & Convenient Service

Our Fort Collins location is independently owned and operated by local residents Stephen and Kelley Kinsland. With owner-operators on-site, you receive personal attention and accountability from people who treat customers like neighbors. That means approaching every service with honesty, integrity, and compassion.

Complimentary shuttle service helps minimize disruption to your day. We also back our workmanship with an industry-leading warranty, giving you added confidence in the work your diesel vehicle receives.

For the sixth consecutive time, Christian Brothers Automotive ranked #1 in Customer Satisfaction Among Aftermarket Full-Service Maintenance and Repair Providers in the J.D. Power 2025 Aftermarket Survey Index (ASI) Study.

What to Expect From Your Diesel Service

Our process keeps you informed from the initial evaluation through your service decision:

  • Bring Us Your Vehicle: Tell us what you’ve noticed, such as difficult starting, unusual sounds, exhaust smoke, warning lights, or reduced performance.
  • Review the Diagnostic Findings: Our technicians perform computer-assisted diagnostics and explain the identified problem in clear, non-technical terms.
  • Authorize the Work: You decide whether to approve the proposed service. Nothing begins without your consent.
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1. Schedule Your Appointment

Whether scheduling online or over the phone be sure and let us know what you're experiencing so we can provide fast and accurate service advice.

2. Diagnostics and Inspections

Drop off your vehicle and the shop will get to work with inspections and diagnostics using the same equipment as the manufacturers to determine issues and next steps.

3. Digital Vehicle Inspection Report and Estimate

Following the diagnosis we will text you a digital vehicle inspection report, containing pictures and videos of our findings and recommendations.

4. Review and Approval

A service advisor will reach out to walk you through the findings and recommendations to determine how you would like to proceed, or you can approve work directly in your DVI.

5. Work Performed or Scheduled

Most work can be completed immediately, or scheduled based on parts and customer availability.

Call For a Quote



Warranty-Backed Diesel Work

Our industry-leading warranty reflects our confidence in our workmanship. Ask us how it applies to your diesel service.

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Signs Your Diesel Vehicle Needs Professional Attention

Hard starting, unusual engine noises, excessive exhaust smoke, and declining fuel efficiency can point to trouble within a diesel system. Fuel injectors, turbochargers, glow plugs, and emissions components all influence how the engine starts and performs. A professional evaluation can identify the source of the problem before you authorize service.

How Common Diesel Engine Systems Affect Performance

Computer-assisted testing allows our technicians to evaluate several interconnected systems before recommending maintenance or repairs.

Fuel Injectors & Filters

Fuel injectors deliver a controlled spray of diesel into the combustion chamber. Deposits or wear can disrupt that spray, reducing efficiency or affecting performance. A clogged fuel filter can also make the fuel pump work harder and contribute to premature wear.

Turbochargers

A turbocharger uses exhaust flow to force more air into the engine, increasing available power. Boost leaks, worn bearings, and other turbocharger problems can lead to reduced power and lower fuel efficiency.

Diesel Emissions Components

The diesel particulate filter (DPF) captures soot from the exhaust. Exhaust gas recirculation (EGR) routes some exhaust back through the engine, while the diesel exhaust fluid (DEF) system helps control certain emissions. Problems with any of these components can trigger warning lights or reduce vehicle performance.

Glow Plugs & Cold Starting

Glow plugs generate the heat a diesel engine needs during startup. A failing glow plug can make the engine difficult to start, particularly in cold Fort Collins weather.

Preventive Diesel Maintenance

Regular oil changes and fuel filter replacement can reduce the risk of breakdowns and support longer engine life. Maintenance requirements vary by make and model, so following the manufacturer’s recommended schedule is important.

Schedule Your Diesel Service

Call us or use our contact form to arrange an evaluation. We can explain what we find, answer your questions, and wait for your approval before beginning any work.

Call (970) 540-4050 to schedule your diesel service today.

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Your Local Christian Brothers Amenities

Courtesy Inspections
Certified Technicians
Free Shuttle Service
Free Wifi
After Hours Key Drop Off
Free Refreshments
Special Financing
Waiting Lounge

FAQs

  • Q. "Why is my engine misfiring?"
    An issue with your ignition system, fuel system, or another mechanical error can cause your engine to misfire. If your engine is misfiring, it is best to have your vehicle looked at immediately. Click here to learn more about engine misfires and their causes.
  • Q. "Why is my engine overheating?"
    The 3 most common reasons your engine is overheating are you have a cooling system leak, a malfunctioning radiator, or a loose/broken belt.
  • Q. "What to do if your check engine light turns on?"
    We recommend heading to your local auto shop as soon as you are able. This is typically a sign that there is an abnormality within your engine.
  • Q. "Do you offer a shuttle service?"
    Yes! we understand you have a full schedule. Whether you need to get to work, school, or need to attend to other responsibilities, we can take you where you need to go. Click here to learn more.
  • Q. "Do you offer a warranty?"
    As part of our Nice difference.® commitment to providing our customers the best auto service experience possible, we also offer a3-year/36,000-mile warranty on all the work that we do. We offer this warranty at every Christian Brothers Automotive nationwide, and it will be honored at any location, regardless of which branch did the initial work.
  • Q. "Can you provide service under my extended warranty?"
    Yes. At Christian Brothers Automotive, we work with all major extended warranty providers to make needed repairs for our customers. If you have an extended warranty, you can discuss your carrier with our team when scheduling an appointment and confirm that the work will be covered. You can find a partial list of the extended warranty companies we work with here.

Have more Questions?

Our friendly auto service experts have the answers.

Call your local Christian Brothers Automotive car shop today

Hear What Our Customers Had to Say About Us

  • "I liked the customer service and going above and beyond to make sure I was comfortable while waiting in the store for my vehicle work to be done, specifically being offered a nice hot coffee with creamer."

    - J.L.

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