Hear from Our Customers
Every hour your truck sits broken down costs you money. That’s why we bring the repair shop to you instead of making you wait for a tow truck and then wait again at some shop that might get to you tomorrow.
Our mobile semi truck repair service covers Roulo and the surrounding I-75 corridor with fully equipped service trucks. We handle everything from diesel engine diagnostics to brake repairs right where you’re stranded.
You call, we come out, we fix it, you’re rolling again. No games, no excuses, no surprise fees when the work’s done.
J&J Truck & Trailer Repair has been handling emergency roadside assistance in the Detroit metro area since 1999. We’re not some fly-by-night operation – we’re the family-owned shop that Michigan truckers call when they need real help.
Dr. Phillip Marin leads our team with three Ph.D. degrees in Diesel Engineering, Drivetrains, and Metal Alloys. That level of technical expertise means we can diagnose problems other shops miss and fix them right the first time.
We serve the Roulo area along with the entire I-75, I-94, and I-96 corridors. When you’re broken down near the Michigan-Ohio border or anywhere in Monroe County, we know exactly where you are and how to get there fast.
Here’s exactly what happens when you call J&J Truck & Trailer Repair for emergency semi truck service in Roulo:
You call our 24/7 dispatch line at 313-999-3088 and tell us where you are and what’s wrong. We don’t put you on hold or transfer you three times – you talk to someone who can actually help.
Our mobile repair truck heads to your location immediately. We carry diagnostic equipment, common parts, and the tools needed for most roadside repairs. Our average response time gets us to most Roulo area locations within an hour.
We diagnose the problem on-site using professional diagnostic equipment. Then we give you a straight answer about what’s wrong, what it’ll cost to fix, and how long it’ll take. No surprises, no padding the bill.
Ready to get started?
Our mobile semi truck repair covers the full range of services you need when you’re broken down in Roulo or anywhere along the I-75 corridor. We handle diesel engine diagnostics, brake system repairs, air system problems, electrical issues, and reefer trailer repairs.
The Roulo area sees heavy truck traffic heading to and from Toledo, and we know the common problems that hit trucks on this route. Brake issues from the hills, air system problems from temperature changes, and electrical gremlins that show up at the worst times.
We stock our mobile repair trucks with parts for Caterpillar, Cummins, Detroit Diesel, and other major engine manufacturers. For brake work, we carry chambers, hoses, and valves for most air brake systems. That means we can often complete repairs on-site instead of having to order parts and come back later.
Our typical response time to the Roulo area is 45 minutes to an hour, depending on exactly where you’re located and what time of day you call. We’re based in Detroit but we cover the entire I-75 corridor down to the Ohio border.
If you’re broken down right on I-75 near the Roulo exit, we can usually get there faster because it’s straight highway driving. If you’re on back roads or at a customer location, it might take a few extra minutes to find you.
We dispatch immediately when you call, not when it’s convenient for us. That’s the difference between real 24/7 service and shops that just say they offer it.
Our mobile repair trucks are set up to handle most of the problems that strand trucks on the road. We do diesel engine diagnostics, brake repairs, air system work, electrical troubleshooting, starter and alternator replacement, and basic transmission issues.
For engine work, we can handle injector problems, turbo issues, cooling system repairs, and most sensor replacements. Our brake service covers air brake chambers, hoses, valves, and ABS sensor work. We also carry jump start equipment and can deliver fuel if you’re just out of diesel.
What we can’t do on-site are major overhauls, transmission rebuilds, or anything that requires the truck to be on a lift. But honestly, those aren’t the problems that usually leave you stranded on I-75 anyway.
Yes, we work on all major truck and engine manufacturers. Our diagnostic equipment covers Caterpillar, Cummins, Detroit Diesel, Mercedes, Volvo, Mack, and International engines. We also service Freightliner, Peterbilt, Kenworth, and other truck chassis.
Dr. Marin’s background in diesel engineering means we understand the technical differences between manufacturers, not just the basic repair procedures. That expertise helps us diagnose intermittent problems and complex issues that might stump other shops.
We keep a good inventory of common parts for all the major brands, but if your truck needs something unusual, we can usually get it the same day through our parts network in the Detroit area.
Our service call fee covers the trip to your location and basic diagnosis. After that, you pay for parts and labor at our posted rates – no hidden fees or emergency surcharges just because you called at 2 AM.
We give you a clear estimate before we start any work, and we stick to it unless we find additional problems that you approve. Most roadside repairs run between $200-800 depending on what’s wrong and what parts are needed.
The key is that we’re upfront about costs. You’ll know what you’re paying before we start, and you won’t get hit with surprise charges when the work is done. That’s just basic honesty, but apparently it’s rare enough in this business that customers comment on it.
Absolutely. We service both Thermo King and Carrier refrigeration units, plus we can handle basic electrical and mechanical issues with reefer trailers. That includes compressor problems, electrical faults, and refrigerant issues.
Reefer problems are especially critical because your cargo is at risk, not just your schedule. We understand that and we prioritize these calls. If we can’t fix it on-site, we can at least get your unit running temporarily so you can get to a full-service facility.
We also work with local shops that specialize in refrigeration if your unit needs major work. The important thing is getting your load protected and getting you options for what to do next.
Yes, we stand behind our work with a standard warranty on parts and labor. If something we repaired fails within the warranty period, we’ll come back and make it right at no charge.
Obviously, roadside repairs are sometimes temporary fixes to get you rolling again, and we’ll tell you if that’s the case. But when we do a proper repair, we guarantee it just like any good shop would.
The bigger guarantee is that we’ll show up when we say we will and do what we say we’ll do. After 40 years in this business, our reputation depends on keeping our word to drivers who are counting on us.
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Other Services we provide in Roulo
