Why Gympie trucks need this work
Most Gympie 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
| Symptom | Common real cause | What we check |
|---|---|---|
| Limp mode under load | Boost leak or turbo actuator | Live boost vs commanded, actuator sweep |
| Repeat DPF light | Interrupted regens from short trips | Soot load, regen history, exhaust temps |
| Rough idle / misfire | Injector balance or fuel quality | Injector return, balance rates, fuel test |
| Random electrical faults | Corroded earth or chafed loom | Voltage drop testing, loom inspection |
Getting here from Gympie
Our workshop is at 46 Regent St, Caloundra — 1 hour 15 minutes from Gympie. Most Gympie 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 Mary Valley, Curra and Imbil, 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 Gympie 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 Gympie?
- Yes — Gympie is about an hour and 15 minutes down the Bruce Highway, and we regularly look after RAM, Silverado, GMC and Ford F-Series trucks from Gympie and the Mary Valley.
- Can everything be done in one visit from Gympie?
- That's how we plan it. Tell us your model and concerns when booking and we'll allow time for servicing, diagnostics and inspection in a single trip, quoting any repair before you head home.