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·01 · What We Do
Diesel Diagnostics
Cummins, Detroit, Cat, Paccar, Duramax, Powerstroke. We pull codes with real heavy-duty scanners (not a phone OBD), match them to symptoms you describe, and tell you straight what's needed. No guessing, no parts cannon.

What's included
Engine, electrical and performance checks backed by real repair work.
- Heavy-duty scan tools (Nexiq, JPRO, Cummins Insite)
- ECM / TCM live data + freeze frame review
- DPF / DEF / EGR fault diagnosis
- Sensor and wiring trace work
- Performance complaints (no power, derate, regen issues)
Quick FAQs
Diesel Diagnostics.
Do you charge a diagnostic fee?+
Yes — diagnostic time is paid like any other labor. If we do the repair, we apply it. Honest hour, no hidden fee.
My truck is in derate — can you still scan it?+
Yes. We work derate / limp issues regularly. Bring it in or call to coordinate a tow if it can't move.
Other services
Full list of shop services.
Ready to fix it right?
Diesel Diagnostics.
Call Miguel directly. Honest diagnosis, straight pricing.
502·713·2201WhatsApp us · Se habla español
