About
Mobile diagnostics, done straight
RoadCall Diesel Diag 24/7 provides mobile diagnostic support for commercial diesel trucks across the Tampa Bay area. We focus on identifying problems accurately, communicating findings clearly, and performing supported on-site electronic service procedures when appropriate. Our initial focus is computer diagnostics and aftertreatment troubleshooting, with expanded mechanical services planned for the future.
Why a diagnostic-first business
A truck that's down costs money every hour, and the most expensive repair is the wrong one. Modern commercial trucks report a lot about themselves — but reading that data well takes heavy-duty software, the right adapter, and the discipline to test before replacing parts. That's the job we're built around.
How we operate
We're based in Zephyrhills, Florida and work as a mobile, service-area business: we come to the truck at a yard, lot, or safe roadside location. We confirm vehicle coverage, technician availability and site safety before every dispatch, and we won't promise arrival times or outcomes we can't stand behind.
What we won't do
No emissions deletes, defeat devices or derate bypasses, and no unsafe forced regenerations. Stationary regens follow the manufacturer's prerequisites and safety checks, every time.
Truck down or throwing codes?
Call with the truck's year, make, model, engine, the fault messages and your exact location. We'll tell you honestly whether we can help and when.
Calls accepted 24/7. On-site dispatch subject to technician availability and safe service conditions.