Why Won’t This Truck Stop Breaking Down?

Truck fault codes stopping you in your tracks? On Challa Station in WA, Ash Dowden tests the Ancel HD3400 Pro diagnostic tool on his Mack truck. After months of fault codes and frustrating derates, could this tool finally reset and clear the errors?

In this video:
✅ Full unboxing & setup of the Ancel HD3400 Pro
✅ Live test on a Mack truck with Volvo engine
✅ Wi-Fi activation issues explained
✅ Reading vs. resetting vs. clearing codes – what actually works
✅ Honest verdict: is it worth it for truck owners?

If you run heavy-duty trucks across remote Australia (or anywhere), this review gives you the real-world pros and cons.

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00:00 Intro – Ash Dowden at Challa Station
00:18 Mack Truck Fault Code Problem
01:00 Unboxing the Ancel HD3400 Pro
02:30 Connecting the Tool to the Truck
03:50 Wi-Fi Activation Struggles
05:20 First Fault Code Scan
07:00 Oil Pressure & Sensor Readings Explained
08:40 Clearing Codes Attempt
10:00 More Fault Codes Appear
12:00 Active vs Inactive Faults
14:00 Final Results – What Worked, What Didn’t
15:40 Honest Verdict on the Ancel HD3400