Matt's Mobile Truck Repair

When your heavy-duty truck breaks down unexpectedly, you can't afford to wait. Matt's Mobile Truck Repair delivers 24/7 mobile truck repair services directly to your location anywhere in St. Joseph and the surrounding region. Our fully equipped service truck carries a wide range of common parts, enabling us to complete most repairs on the spot — saving you the cost of towing and days of lost revenue.

We handle all makes and models of class 6-8 trucks, including semis, box trucks, dump trucks, and tractor trailers. Our emergency roadside service covers everything from air systems and electrical failures to starter and alternator problems. We also perform belt and hose replacements, battery jump-starts, and tire assist (using your spare or arranging a road service tire).

Our process is simple: you call our 24-hour hotline, we dispatch a mobile mechanic to your exact GPS coordinates, and we get to work immediately. We diagnose the problem in front of you, provide a transparent estimate, and only proceed with your approval. Because we prioritize speed without cutting corners, you'll be back on the road faster than you thought possible.

Why choose Matt’s Mobile? We are local, owner-operated, and available 24/7/365 — including nights, weekends, and holidays. We don't charge hidden fees or overtime markups. When you are stranded in St. Joseph, we are the mobile truck repair experts you can trust.

For more complex repairs or scheduled maintenance, bring your rig to Matt's Mobile Truck Repair's full-service shop located at 3807 S Leonard Rd. in St. Joseph. Our facility is equipped to handle everything from engine diagnostics to transmission work, brake overhauls, and DPF cleaning. We combine the convenience of a mobile unit with the capability of a stationary heavy-duty repair center.

We specialize in preventative maintenance programs designed to extend the life of your fleet and prevent costly breakdowns. Our services include oil and filter changes, full chassis lubrication, brake adjustments, air dryer service, coolant flushes, and complete DOT inspections. We also offer advanced electronic diagnostics for modern diesel engines, ensuring we pinpoint issues accurately the first time.

When you choose our in-shop repair, you benefit from a clean, organized work environment, access to heavy lifting equipment, and a dedicated team that treats your truck with care. We know your truck is your livelihood. That's why we aim to complete most major repairs within 24-48 hours without ever sacrificing quality. And if you need a loaner or shuttle service to a nearby waiting area, just ask — we work hard to make the process as painless as possible for owner-operators and fleet managers in St. Joseph.

Our shop is also ComData, T-Check, and EFS approved, making payment seamless for commercial accounts. Whether you need a minor repair or a major overhaul, trust Matt's Mobile Truck Repair for honest, expert service under one roof.

Modern diesel trucks are complex machines controlled by onboard computers and sensitive electronic systems. When your check engine light comes on or your truck loses power, you need a technician who can quickly decode the problem without guesswork. Matt's Mobile Truck Repair offers advanced diesel engine diagnostics and electronic troubleshooting services for all major brands including Cummins, Detroit, Caterpillar, PACCAR, and International.

Our mobile service truck is equipped with state-of-the-art diagnostic scanners and software that communicate directly with your truck's ECM (Engine Control Module). We can read and clear fault codes, monitor live engine data, test sensors and actuators, and perform forced regenerations on DPF systems. This technology allows us to identify issues ranging from faulty fuel injectors and EGR valve failures to transmission control module glitches and wiring harness shorts — often in under 30 minutes.

We don't just rely on codes, though. Our mechanics combine electronic data with old-school mechanical knowledge to verify each diagnosis physically. This dual approach ensures we never replace a part that isn't truly defective. Once we identify the root cause, we explain the issue in plain English, provide a clear written estimate, and get to work immediately — either on-site or back at our shop in St. Joseph.

Whether you are experiencing hard starting, reduced fuel economy, excessive smoke, or a truck that won't shift properly, call Matt's Mobile Truck Repair. We turn electronic headaches into straightforward fixes, so you can get back to hauling with confidence.