Hear from Our Customers
Your breakdown doesn’t have to become a disaster. Our mobile repair units reach you faster than waiting for a tow truck, and we fix most problems right where you’re stranded.
You’re back to making money instead of losing it. No expensive towing fees, no sitting in some shop for days, no missed deliveries that damage your reputation with customers.
When you call J&J, you get Dr. Phillip Marin’s team—the only mobile truck repair service in the area backed by three Ph.D. degrees in diesel engineering. That means we diagnose problems correctly the first time and fix them permanently.
We’ve been keeping Detroit-area truckers moving since 1999. We know every mile of I-75, I-94, and US-24 because we’ve responded to breakdowns on all of them.
Dr. Phillip Marin leads our team with credentials you won’t find anywhere else—three Ph.D. degrees in Diesel Engineering, Drivetrains, and Metal Alloys. When your livelihood depends on getting back on the road fast, you want that level of expertise working on your rig.
We’re family-owned, which means when you call, you’re talking to people who understand that your truck isn’t just a vehicle—it’s how you feed your family. That’s why we answer our phones 24/7 and dispatch immediately.
Call us and we dispatch immediately—no phone tag, no waiting for callbacks. Our mobile unit heads straight to your location with diagnostic equipment and common repair parts already on board.
We diagnose the problem using professional-grade computer systems, not guesswork. You get a clear explanation of what’s wrong and a realistic time estimate before we start any work.
Most repairs happen on-site. If we need specialized parts, we handle the sourcing and return quickly. You get back to hauling freight while other drivers are still waiting for tow trucks.
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We handle the full range of roadside emergencies that stop trucks cold on I-75 and I-94. Brake failures, engine problems, electrical issues, tire blowouts, air system leaks—our mobile units carry the tools and parts to fix them.
Detroit’s position as a major freight hub means breakdowns here impact tight delivery schedules. We understand the pressure you’re under and work fast without cutting corners on quality.
Our service area covers all the major freight corridors around Grosse Pointe Shores, including the I-75 corridor that carries over 15,500 trucks daily and I-94 through the Detroit area. When you break down on these busy routes, you need someone who can navigate traffic and get to you quickly.
We dispatch immediately upon your call, typically reaching breakdown locations within 45-60 minutes depending on traffic and your exact position. Our mobile units are strategically positioned to serve the I-75 and I-94 corridors where most breakdowns occur.
Unlike competitors who might put you in a queue, we treat every call as urgent because we understand that downtime costs you money. Our team operates 24/7 with multiple mobile units, so we’re always ready to roll.
We handle complete brake system repairs including brake chamber replacements, air line repairs, ABS sensor issues, and brake adjustments. Our mobile units carry brake chambers, air lines, fittings, and diagnostic equipment for most brake emergencies.
Brake problems are especially dangerous on busy corridors like I-75, where you’re dealing with heavy traffic and steep grades. We prioritize brake calls because your safety and the safety of other drivers depends on getting your stopping power restored immediately.
If you’re hearing grinding noises, feeling brake pedal pulsation, or seeing dashboard warning lights, don’t ignore them—these are signs of serious brake system problems that need immediate attention.
Yes, we perform complete diesel engine diagnostics using professional computer systems that interface with all major truck manufacturers. Dr. Marin’s Ph.D. in Diesel Engineering means we understand these systems at a level most mechanics never reach.
We diagnose everything from no-start conditions and power loss to complex emissions system problems. Our mobile units carry common engine repair parts, filters, belts, and fluids to handle many repairs on the spot.
When engines fail on major freight routes, every minute matters. We’ve seen too many drivers wait hours for basic diagnostics that we complete in minutes, getting them back to earning instead of sitting on the shoulder.
Absolutely—tire failures and wheel bearing problems are among our most common calls, especially from trucks running the heavy freight corridors around Detroit. We carry a selection of commercial truck tires and have the equipment to change them safely roadside.
Wheel bearing failures can cause serious damage if you keep driving, so we respond to these calls as emergencies. Our mobile units have the tools to diagnose bearing problems and make temporary repairs to get you to a safe location if needed.
The key is calling us immediately when you notice unusual tire wear, hear grinding from the wheels, or feel vibration through the steering wheel—these problems only get worse and more expensive if you ignore them.
We serve the entire Detroit metro area including all major freight corridors—I-75 from Toledo to Flint, I-94 from Kalamazoo to Port Huron, I-96, and US-24. Our base location in Detroit gives us quick access to wherever your truck breaks down.
We know these routes intimately because we’ve been responding to breakdowns on them for over 40 years. Whether you’re stuck at a truck stop, broken down on the highway, or dealing with problems at a loading dock, we’ll find you and get you fixed.
Our service area covers Wayne County and surrounding regions where most of the heavy truck traffic flows. If you’re hauling freight through Southeast Michigan, we’re positioned to help when things go wrong.
Our pricing is straightforward—you pay for parts at cost plus labor, with no hidden fees or surprise charges. Mobile service costs more than shop work, but it’s usually much less than towing plus shop time plus the revenue you lose sitting still.
We provide clear estimates before starting any work, so you know exactly what you’re paying. Most of our customers find that mobile repair saves them money overall because they avoid towing fees and get back to hauling freight faster.
For fleet customers, we offer volume discounts and can set up accounts for faster service. The key is that we’re transparent about costs upfront—no surprises when you’re already dealing with the stress of a breakdown.
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