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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.

Diesel Diagnostics
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.

Ready to fix it right?

Diesel Diagnostics.

Call Miguel directly. Honest diagnosis, straight pricing.

502·713·2201
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