
1985 Autocar: we work on any truck
If it runs diesel and needs help, we'll show up. Age is not a barrier: classic, vintage, or modern.
24/7 Mobile Diesel Mechanic · Summerville, SC
Summerville work sites are spread across several I-26 exits, from Jedburg Rd (Exit 194) to US-78 (Exit 205). We bring the diesel repair to the truck at any of them, and along US-17A, Nexton Pkwy, and Dorchester Rd, 24 hours a day.
Where We Work Around Summerville
The Jedburg industrial area holds a logistics park with a large cross-dock building and last-mile delivery hubs, and the truck stop at the exit has truck parking. We come to units parked at any of them.
Nexton Pkwy runs from I-26 to US-176, serving Nexton (in Berkeley County), Carnes Crossroads, and Cane Bay. Warehouses in the Charleston Trade Center sit right off the interchange.
Exit 199A takes US-17A south into Summerville as Main St, and 199B heads north toward Moncks Corner. We work on contractor trucks, service vans, and diesel pickups at shops and jobsites along it.
Ladson Rd runs through the Oakbrook area of Summerville, connects to Palmetto Commerce Pkwy, and forms a corridor with US-78 (Exit 205). College Park Rd (Exit 203) serves Ladson, and Dorchester Rd (SC-642) runs on into North Charleston. The Dorchester Commerce Center on Hodge Rd sits just off I-26.
Why Call a Mobile Mechanic
Summerville sits mostly in Dorchester County, with pieces in Berkeley and Charleston counties, and its truck traffic is split across a string of I-26 exits. Hauling a disabled truck from a Jedburg Rd dock or a Nexton jobsite to a shop can cost a day before anyone opens the hood. We do all of our work on-site, so the testing starts where the truck stopped.
Lowcountry Diagnostics is based in Goose Creek and covers Summerville 24/7. Founder and lead diesel technician Joseph Cufaude brings 13 years in the diesel trade to no-starts, derates, air brake problems, and DPF cleaning, and every call ends with written findings and a clear next step.
How We Work
An exit number such as 194, 197, or 199, a Main St address, or a jobsite in Nexton or Cane Bay gets us to the truck. Add the make and what it is doing.
At the dock, on the jobsite, or on the shoulder, we confirm the failed part with codes, live data, and system tests before replacing anything.
Practical repairs happen on the spot. If the truck needs more, you get a written plan and decide what comes next.
Call or text with the exit or address. We cover Summerville around the clock, from Jedburg Rd to Ladson.
Yes. All of our work is done on-site. We come to docks in the Jedburg Rd industrial area, warehouses off Nexton Pkwy, jobsites in Nexton, Carnes Crossroads, and Cane Bay, shops along US-17A and Dorchester Rd, and shoulders on I-26.
Delivery vans, box trucks, tractors, contractor and service trucks, diesel pickups, trailers, and diesel equipment. We work on most medium-duty and heavy-duty makes and engines.
Yes. Give us the exit (194 Jedburg Rd, 197 Nexton Pkwy, 199 US-17A, 203 College Park Rd, or 205 US-78) and where the truck is parked. We diagnose it there and repair what is practical on-site.
Yes. We run 24/7, including nights, weekends, and holidays, for truck-down calls across Summerville, Nexton, and Ladson. Call or text (843) 310-0995.
Tell us the exit, address, or jobsite and what the truck is doing. For a truck that is down now, a call or text reaches us fastest.
Urgent breakdown? Call or text (843) 310-0995 now.
Recent Repair Photos
Real field photos from Lowcountry Diagnostics, from engine diagnostics and electrical to hydraulic, HVAC, and heavy-duty truck service, handled on-site across the Charleston area.






Reviews
“Joseph was very professional. He was quick with his response and was able to fix my truck faster than originally expected…”
“Very reliable.. very transparent.. good service .. I would highly recommend and will be calling him again”