Mobile Diesel Repair

24/7 Roadside Truck Service

Welcome

On-Site Diesel Truck & Equipment Repair When and Where You Need It

NoCo Diesel Services LLC provides reliable, 24/7 mobile diesel repair across Northern Colorado, Southern Wyoming, and parts of Western Nebraska. Based in Johnstown, we dispatch fully equipped service trucks directly to your breakdown location—whether you're on the side of I-25, at a job site, or in your fleet yard.

Our certified diesel technician brings over 15 years of experience in diagnosing and repairing Class 6–8 trucks, trailers, and heavy equipment. We specialize in emergency roadside service, on-location diagnostics, and mobile repairs that get your vehicle back on the road faster—without the hassle or cost of towing.

What Is Mobile Diesel Repair?

Mobile diesel repair is the fastest, most efficient way to fix your truck, trailer, or heavy-duty vehicle when it breaks down in the field. Rather than hauling your equipment to a shop, we bring the shop to you. Our mobile service units are stocked with advanced diagnostic tools, repair parts, and everything needed to troubleshoot and fix diesel problems on-site.

Whether you’ve got a check engine light, air brake failure, a no-start issue, or an electrical fault, we respond quickly and complete the work at your location—day or night.

Common Diesel Roadside Repairs

We handle a wide range of diesel system repairs in the field, including:


  • Engine diagnostics and repair
  • ECM and sensor fault troubleshooting
  • Check engine light service
  • DPF regen and aftertreatment resets
  • Air brake system leaks and component replacement
  • Electrical system testing and wiring repairs
  • Fuel system diagnosis and priming
  • Wheel seal replacements
  • DOT compliance repairs
  • Lighting repairs for trucks and trailers


If we can’t repair it on-site (rare), we’ll help coordinate next steps so you're not stuck without a plan.

Diesel Vehicles and Equipment We Service

Our mobile diesel repair service is available for a variety of diesel-powered vehicles and equipment, including:

  • Class 6–8 commercial trucks
  • 18-wheelers and tractor-trailers
  • Heavy-duty box trucks and delivery vehicles
  • Flatbed, dry van, and reefer trailers
  • Construction equipment and diesel-powered machinery
  • Diesel-powered generators and stationary units
  • Fleet service trucks and vocational vehicles

24/7 Emergency Roadside Diesel Service

Breakdowns don’t wait for business hours. That’s why NoCo Diesel Services offers 24-hour roadside repair for diesel trucks and trailers throughout our service area. We’re ready to respond to:

  • No-start diesel engines
  • Air brake failures and line leaks
  • Loss of power or rough running
  • Fault codes and derates
  • Lighting or electrical system issues
  • DPF/SCR or aftertreatment system warnings
  • Tire problems and wheel seal failures

Why Choose NoCo Diesel Services for Mobile Repair?

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Certified Experience

With 15+ years in diesel service and dealership-level training from International Trucks & Kenworth, we bring top-tier diagnostic and repair knowledge to every job.

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Truly Mobile Service

We are not a brick-and-mortar shop doing part-time mobile work. Our operation is 100% built for the road. Everything we need comes to you—on your schedule.

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Fast Response Times

We prioritize emergency calls and aim to dispatch a mobile technician as quickly as possible. Most roadside service requests receive same-day attention.

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Upfront, Fair Pricing

We provide clear estimates and explain each repair. You won’t get hidden charges or upsells—just honest service.

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Fleet Support Available

Have multiple trucks? Ask about integrating mobile repairs into your fleet maintenance strategy. We help reduce downtime and avoid repeat issues.

Call Now for Emergency Diesel Repair

If your truck is down, don’t wait. NoCo Diesel Services LLC is available now to take your call and get a certified diesel technician headed your way. We respond fast, work efficiently, and stand behind every repair.