Diesel Engine Repair in North Charleston, SC
CAT engines are built to run for millions of miles—until injectors clog or an electronic control module (ECM) glitch cascades through the fuel injection system. When that happens, you need fast answers. We plug in OEM-grade software for precise engine diagnostics, pressure-test the cylinder head gasket, and scope the timing belt to locate faults before they snowball.
Typical CAT issues we correct every day include:
- Hard starts and persistent white smoke
- Low oil pressure or unexplained knock
- Active DOC/DPF regeneration faults
- Overheating under load
Because we come to you, there’s no towing, no lines—just quick, clean repairs that keep your CSA score intact.
What Makes Us Different
You haul on tight delivery windows; we respect that. An ASE-Certified Master Technician arrives with a fully stocked service vehicle, performs DOT-compliant inspections, and handles predictive maintenance while your truck is parked. Advanced aftertreatment analyzers let us isolate SCR, DPF, or DEF issues on CAT C7, C9, and C13 platforms without costly trial-and-error part swaps. All preventive-service data is digitized, helping you verify compliance in seconds if an officer waves you over. Most repairs wrap up inside a single shift, shaving hours—sometimes days—off your downtime.
Contact Us About CAT Engine Repair Now: Call 843-400-3051!
Struggling with limp-mode or engine derate? One call connects you with a CAT-fluent advisor who can schedule service right away. Dial 843-400-3051 for immediate help and transparent pricing.
FAQs
What Areas Do You Serve for Heavy-Duty Engine Repair?
We operate from 2150 Iron Rod Court, Suite 100, near Rivers Avenue and Aviation Avenue. Our mobile crew reaches Mount Pleasant SC, Goose Creek SC, Hanahan SC, Ladson SC, Summerville SC, Isle of Palms SC, Sullivan’s Island SC, Daniel Island SC, Awendaw SC, Conifer SC, Moncks Corner SC, Parker’s Ferry SC, and Hollywood SC—anywhere within a 25-mile radius. Weekend and late-evening appointments are always available.
What Is a Full Engine Diagnostic?
A full diagnostic connects professional scan tools to the ECM, reads live sensor data, and runs automated health tests. Technicians compare those findings with mechanical checks—such as compression and leak-down—to pinpoint root causes. The combined insight estimates remaining component life and ensures you approve only the work you truly need.
Can Low Oil Level Cause a Check-Engine Light?
Yes, it can. Modern CAT engines track oil-pressure thresholds; when the level drops, pressure falls and the ECM logs a fault that illuminates the light. Persistent low oil starves bearings, accelerates wear, and may eventually seize the crankshaft, so never ignore the alert.
Schedule Your CAT Engine Service Today
Don’t let minor issues turn into blown head gaskets. Reach out now—dial 843-400-3051—and lock in a convenient service slot before the next load leaves the yard.
Mobile Diesel mechanic Services We Offer
From heavy-duty vehicle repairs on semi-trucks, trailers, RV & motorhomes, and trailers, Southeastern Fleet Services are Charleston, South Carolina's #1 choice for mobile diesel mechanic services. Whether you require emergency roadside assistance for a breakdown, or schedule heavy-duty repairs onsite at your location, we have you covered!
Check out what our Customers Have to say!

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