Your local Truck Mechanic in Mount Isa

  • Efficient Repairs
  • Affordable Prices
  • Meticulous Diagnostics

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A Man is Working on the Engine of a Truck — Secure Diesel & Automotive in Ryan, QLD

Mount isa truck mechanic

Searching for a reputable truck mechanic in Mount Isa? At Secure Diesel & Automotive, we offer heavy vehicle repairs that keep your truck operating efficiently and safely. Whether you're managing a fleet or driving long-haul routes, our experienced team provides expert service you can rely on.


We handle engine diagnostics, transmission work, electrical repairs, and preventative maintenance to minimise downtime and avoid costly disruptions. Our workshop is equipped to service a wide range of commercial vehicles, with a focus on performance, reliability, and long-term value. We take the time to identify issues properly and deliver lasting solutions.


Your truck works hard, and so do we—helping you stay compliant, safe, and on the road with confidence. Call 0467 584 452 to book a service with our trusted team today. In addition to Mount Isa, we service Cloncurry, Boulia and Julia Creek.

Mount Isa Bus Mechanic

For professional bus mechanical services in Mount Isa, you can rely on the team at Secure Diesel & Automotive. We deliver expert maintenance and repairs for commercial buses to ensure they stay roadworthy, reliable, and ready for daily use. Our technicians are experienced in working with large passenger vehicles across a range of applications.


Our services cover engine diagnostics, suspension repairs, brake servicing, transmission maintenance, and electrical system checks. We understand the importance of safety, comfort, and punctuality in bus operations, and we tailor our approach to minimise downtime and keep your fleet moving.



Whether you're operating a school route or long-distance service, we provide trusted mechanical support for smooth, compliant transport. Call 0467 584 452 to book a service with our dedicated team.

A Man is Working on a Truck in a Garage — Secure Diesel & Automotive in Ryan, QLD

FAQs

  • What causes transmission issues in heavy vehicles?

    Common causes include worn clutches, low transmission fluid, overheating, and excessive strain under heavy loads. Symptoms include gear slipping, delayed shifts, or unusual noises. Servicing the transmission ensures smoother operation and prevents major failures.

  • How often should brake fluid be replaced in heavy vehicles?

    Brake fluid should typically be replaced every 12 to 24 months, depending on usage and manufacturer guidelines. Over time, it absorbs moisture, reducing braking efficiency. Regular flushing helps maintain safe and responsive braking performance.

  • Why is preventative maintenance important for heavy vehicles?

    Preventative maintenance reduces the risk of breakdowns, extends vehicle lifespan, and helps avoid costly repairs. It also ensures compliance with safety standards. Keeping critical systems in check improves reliability, which is essential for vehicles used in commercial transport or passenger service.