Coltrain Onsite’s Chris Boyce Joins the Freight Coach Podcast

Mobile Fleet Maintenance Is the Future of Uptime: Key Takeaways from Chris Boyce on the Freight Coach Podcast

Mobile fleet maintenance helps fleets reduce downtime by bringing preventive maintenance (PM) and most repairs directly to the yard—often after hours—so trucks stay on schedule and drivers stay moving. In a Freight Coach podcast interview, Chris Boyce (RVP, Coltrain Onsite Fleet Care) explains why on-site service is expanding fast, what it takes to build a diesel technician career without a traditional degree, and which maintenance metrics fleets should track to protect uptime, safety, and total cost of ownership.

Watch the full Freight Coach episode with Chris Boyce

Want the full conversation on mobile fleet maintenance, technician career paths, and the fight for fleet uptime? Watch the complete Freight Coach interview with Chris Boyce (RVP, Coltrain Onsite Fleet Care) below.

What is mobile fleet maintenance (and why are fleets using it more)?

Mobile fleet maintenance is professional truck and trailer service performed at the customer’s location instead of in a shop. According to Chris, the biggest driver is uptime: when service comes to you, you eliminate unnecessary trips to a shop, reduce driver disruption, and can schedule work nights and weekends to avoid operational downtime.

Why fleets are shifting toward on-site service:

• Less downtime: PMs happen where the assets are parked.
• Less driver disruption: No driver time wasted transporting units for routine service.
• Better scheduling: After-hours and weekend maintenance fits real-world operations.
• Stronger partnership: Techs build a recurring, yard-level relationship with the fleet team.

Shops still matter for major repairs (like large engine work or warranty-specific procedures), but Chris notes that routine maintenance and common repairs can often be handled on-site.

Do you need a college degree to become a diesel or trailer mechanic?

No—Chris is clear that there are multiple paths into the trade. A technical school can provide strong fundamentals and theory, but it’s also common to start in an entry-level role and build skills through structured on-the-job training, mentorship, and experience.

Two common paths Chris recommends:

1. Technical training programs (diesel/trailer technology programs)
2. Entry-level roles with a company that trains (starting ground-up with mentorship)

His broader point: you can start with limited experience, learn the systems over time, and grow into leadership if you’re willing to work, learn, and take ownership.

Why mobile maintenance creates more opportunity in small towns and rural areas

One of the most practical takeaways from the conversation: freight is everywhere, and so is the need for dependable equipment. Mobile maintenance expands career options for technicians who don’t want to commute to major metros.

Chris explains that mobile fleet care can better align with where technicians live—often outside city centers—because the work can be dispatched regionally to customer yards and local operations.

What that means in real life:

• Technicians can build a strong career without relocating to a big city.
• Fleets in smaller communities can access professional maintenance without long shop runs.
• Regional coverage allows both scheduled PMs and safe, appropriate repair work.

Is on-site fleet care becoming the “new normal” for maintenance?

Chris’s answer: yes, for routine maintenance. Fleets increasingly prefer the model because it supports uptime and simplifies operations. The ability to service equipment on location—especially for PMs—reduces the friction that often causes maintenance delays.

The practical division of labor Chris describes:

• Mobile/on-site: PMs, inspections, many common repairs, diagnostics, trailer work, lights, brakes, and more.
• Traditional shop: Large engine swaps, major work requiring specialized bays/lifts, and some warranty/OEM-specific procedures.

The goal isn’t “mobile versus shop.” The goal is the right service model for the job, delivered safely and efficiently.

How do you shift from reactive repairs to proactive maintenance?

Chris describes a consistent approach: start with an upfront fleet interview and assessment, then build a repeatable maintenance program that creates more touchpoints with the equipment before breakdowns occur.

At Coltrain Onsite, that proactive approach includes:

• Learning the fleet’s operating hours, routes, unit types, and pain points
• Reviewing PM cycles and common failure points
• Performing fleet assessments to identify issues early
• Building a relationship where techs look beyond “the one thing” and flag emerging risks (belts, seals, brakes, etc.)

Proactive maintenance is ultimately about ownership: catching problems when they’re small so fleets avoid “downstream” failures that cause missed loads and bigger repair bills.

How does on-site maintenance reduce total cost of ownership (TCO)?

Chris acknowledges that hourly rate matters—but emphasizes that the bigger story is cost of ownership over time. Preventive maintenance programs help stabilize costs by reducing breakdowns, improving reliability, and keeping drivers and operations teams from constantly reacting.

Where fleets often see the financial impact:

• Reduced unplanned downtime
• Fewer roadside events and cascading repairs
• Less lost productivity (dispatch disruptions, driver time, rescheduling)
• Better asset reliability and longer component life (especially with consistent PMs)

The theme is consistent with Coltrain’s values: safety and trust first, with partnership built for the long haul—not short-term transactions.

How close are mobile techs to “shop-level” diagnostic capability?

Mobile technicians can perform a wide range of diagnostics and repairs, and Chris describes investments in diagnostic platforms and field equipment that support real work on-site. Mobile service vehicles are typically equipped with core field capabilities (power, air, welding/repair support, and specialized tools), plus diagnostic tools for reading codes and troubleshooting most common issues.

Chris also notes an important reality: some OEM-specific tools and warranty procedures require specialized software or shop environments. That’s why a strong mobile provider is honest about what can be done safely in the field and when a shop is the better option.

How do you service multiple makes and models across a fleet?

The foundation is experience, systems knowledge, and smart technician alignment. Chris explains that success comes from:

• Reviewing the fleet mix upfront (engines, makes, trailers, common configurations)
• Assigning technicians based on proximity, availability, and skill set
• Keeping the same technician on the same yard most of the time (so they learn the SOPs and equipment)
• Leveraging internal team knowledge when unique issues come up

In other words: it’s not about claiming every tech can do everything. It’s about building the right team, matching the right tech to the right fleet, and communicating clearly.

What maintenance metric should fleet owners track more closely?

Chris points to two fundamentals that directly tie to fleet performance:

• PM currency (staying current on scheduled preventive maintenance intervals)
• Downtime (how long units are down and how often)

Those two metrics work together: consistent PM execution reduces unexpected failures, and reduced downtime protects service levels, driver satisfaction, and profitability.

FAQ: Mobile Fleet Maintenance and Diesel Technician Careers

What is mobile fleet maintenance?

Mobile fleet maintenance is on-site truck and trailer service performed at your yard or terminal—often including preventive maintenance, inspections, diagnostics, and many common repairs.

Is mobile maintenance cheaper than taking trucks to a shop?

It can reduce total cost of ownership by minimizing downtime, driver disruption, and unplanned breakdowns. Hourly rate matters, but uptime and avoided disruptions often drive the biggest savings.

Can mobile techs do diagnostics?

Yes—mobile technicians commonly use diagnostic platforms to read codes and troubleshoot issues. Some OEM-locked or warranty-specific procedures may require specialized software or a shop environment.

Do you need a degree to become a diesel mechanic?

Not always. Many technicians enter through technical programs, apprenticeships, or entry-level roles with structured training and mentorship.

What’s the biggest benefit of on-site preventive maintenance?

Uptime. PMs can be scheduled around operations (including nights/weekends), and fleets reduce the burden of moving equipment to shops for routine service.

Partner with Coltrain Onsite Fleet Care

Coltrain Onsite is a family-owned and operated team built around Safety, Trust, Family, Purpose, Entrepreneurial drive, and being Proudly American. If you want a maintenance partner focused on uptime, proactive planning, and real relationships at the yard level, we’re ready to help.

Learn more, request service, or explore technician careers:
Visit coltrainonsite.com to connect with our team.