Digital instrument cluster during diagnostic testing

Diagnostics & Fault Finding in Kilcoy

We diagnose warning lights, limp mode, rough running and electrical faults on American trucks for Kilcoy owners using factory-level scan tools — not a generic code reader. If a general mechanic has already handed your truck back with "no fault found", this is the workshop that finds it.

Why Kilcoy trucks need this work

Most Kilcoy trucks that come to us for diagnostics arrive with a code that's already been read somewhere else. The code tells you which circuit complained, not what caused it. On a 6.7 Cummins, 6.6 Duramax or 6.7 Power Stroke, the same code can mean a sensor, a wiring chafe, a fuel-quality issue or a DPF that never completed a regeneration — and only live data under load separates them.

What's included

  • Factory-level scan tool access, not generic OBD-II code pulling
  • Live data logged under road load, not just at idle in the workshop
  • Wiring, connector and earth checks on intermittent electrical faults
  • Fuel system and injector performance testing on diesels
  • Written findings with a quote before any repair work starts
SymptomCommon real causeWhat we check
Limp mode under loadBoost leak or turbo actuatorLive boost vs commanded, actuator sweep
Repeat DPF lightInterrupted regens from short tripsSoot load, regen history, exhaust temps
Rough idle / misfireInjector balance or fuel qualityInjector return, balance rates, fuel test
Random electrical faultsCorroded earth or chafed loomVoltage drop testing, loom inspection

Getting here from Kilcoy

Our workshop is at 46 Regent St, Caloundra — 1 hour from Kilcoy. Most Kilcoy customers drop the truck off in the morning and collect it the same day where the job allows, so truck diagnostics doesn't cost you a second trip. If you're coming in from Woodford, Somerset Dam and Esk, call ahead and we'll have the hoist free when you arrive.

Fixed-price minor servicing starts at $469 (1500-series) and $599 (HD-series). All other work — including diagnostics & fault finding — is quoted before we start, with no surprises on the invoice.

Frequently asked questions

Another workshop in Kilcoy couldn't find my fault — can you?
Usually, yes. Most 'no fault found' results come from generic tooling that can't see American-truck-specific live data. We road-test with the truck loaded and log the data the fault actually appears in.
Do I pay for diagnostics separately from the repair?
Diagnostic time is quoted upfront and is separate from repair labour, so you know what the investigation costs before we start. We give you the findings in writing either way.
Do you service American trucks from Kilcoy and the Somerset region?
Yes — Kilcoy is around an hour via the D'Aguilar Highway, and we regularly see RAM, Silverado, GMC and Ford F-Series trucks from Kilcoy, Woodford, Esk and Somerset Dam.
Can you fit everything into one trip?
That's how we book country customers. Send your list when you book and we'll allow time for servicing, diagnostics and inspection in a single visit.

More for Kilcoy truck owners

Diagnostics & Fault Finding in other suburbs

Model servicing near Kilcoy

Related guides