Truck & Diesel Mechanic Gladstone & Calliope

Truck Repairs, Heavy Diesel Diagnostics, Fleet Servicing & Mobile Support

When a truck, diesel vehicle or fleet vehicle stops working properly, downtime gets expensive fast.

Total Mobile Mechanical Services provides professional truck and diesel diagnostics, servicing and repairs across Gladstone, Calliope and Central Queensland.

We work on:

Trucks • Trailers • Heavy Diesel • Fleet Vehicles • 4WD Diesels

No-start fault? Limp mode? Engine warning light? DPF, EGR, AdBlue, turbo, boost, fuel pressure, injector, wiring, brake, suspension or cooling problem?

We diagnose the fault properly, explain the repair clearly, and fix what actually needs fixing.

Call 0456 765 135 to book truck or diesel diagnostics, servicing or repairs.

Please call our helpful staff to book in on 0456 765 135

Truck Repairs Gladstone & Calliope

Trucks are not cars. They work harder, carry more load, cost more when they stop, and need proper mechanical support.

Total Mobile Mechanical Services provides truck repairs, servicing and diagnostics for owner-drivers, commercial operators, fleet vehicles and local businesses across Gladstone, Calliope and surrounding areas.

We work on:

Light trucks
Medium trucks
Rigid trucks
Heavy vehicles
Prime movers
Trailers and semi-trailers
Commercial utes
Fleet vehicles
4WD diesels used for work or towing

Whether it is a service, breakdown, brake fault, suspension issue, driveline problem, diesel fault, electrical issue or warning light, we can inspect it and advise the right repair path.

Heavy Diesel Diagnostics

A fault code is a starting point, not a parts list.

Modern diesel faults can be caused by fuel supply, injectors, sensors, wiring, boost control, turbo faults, cooling system problems, exhaust restrictions, DPF faults, EGR faults, AdBlue systems, ECU inputs, battery voltage issues or poor previous repairs.

Guessing gets expensive.

We diagnose and repair:

Hard starting
No-start faults
Limp mode
Loss of power
Excessive smoke
Engine warning lights
DPF faults
EGR faults
AdBlue and SCR faults
Turbo and boost faults
Injector faults
Fuel pressure faults
Sensor and wiring faults
Overheating
Cooling system faults
Battery, charging and voltage faults
Intermittent faults
Faults other workshops have not solved

If you want someone to guess, we are probably not your cheapest option.

If you want the fault diagnosed properly, call us.

Truck Fleet Servicing & Commercial Vehicle Maintenance

Fleet vehicles need a different mindset to one-off repairs.

The aim is not just to fix today’s problem. The aim is to reduce downtime, prevent repeat failures and keep vehicles reliable.

We can assist with:

Scheduled servicing
Preventative maintenance
Safety inspections
Brake checks
Suspension and steering checks
Cooling system checks
Battery and charging system checks
Diesel fault diagnosis
Trailer and towing-related checks
Breakdown support where practical
Clear fault reporting
Practical repair recommendations

For businesses, this means fewer surprises, better planning and less time lost waiting for vehicles to be repaired.

Mobile Truck Mechanic Support

Some truck and diesel problems can be assessed or repaired on site. Others need workshop equipment, safe access and proper testing.

Total Mobile Mechanical Services provides mobile support where practical across Gladstone, Calliope and surrounding areas.

Mobile support may assist with:

Initial fault checks
No-start assessment
Battery and charging issues
Minor mechanical repairs
Diesel fault diagnosis
Fleet support
Breakdown assistance where practical

If the repair needs workshop equipment, safe access or deeper testing, we will advise the right next step instead of pretending every job should be fixed roadside.

Workshop-Based Truck & Diesel Repairs

Mobile support is useful. A proper workshop is where bigger truck and diesel problems get fixed properly.

Our Calliope workshop allows us to carry out proper diagnostics, repairs and follow-up checks under controlled conditions.

Workshop repairs can include:

Truck servicing
Diesel repairs
Mechanical repairs
Brake repairs
Suspension repairs
Cooling system repairs
Auto electrical testing
Air conditioning support
Trailer repairs
Fleet maintenance
Larger repairs that should not be done roadside

This gives customers a better repair process than a quick patch-up that fails again later.

DPF, EGR & AdBlue Fault Diagnosis

DPF, EGR and AdBlue faults are some of the most misdiagnosed diesel problems.

A DPF warning light does not automatically mean the DPF is the only problem. The cause may be a blocked filter, failed sensor, poor combustion, boost leak, EGR fault, exhaust pressure issue, temperature sensor fault, wiring issue or failed regeneration strategy.

We diagnose:

DPF warning lights
Failed or incomplete regens
EGR flow faults
EGR cooler issues
AdBlue faults
SCR faults
NOx sensor faults
Exhaust pressure sensor faults
Limp mode caused by emissions faults

We do not promote illegal emissions deletes. We diagnose and repair the system properly.

Turbo, Boost & Power Loss Problems

If your diesel is down on power, the fault needs testing before parts are replaced.

We check:

Boost leaks
Split intercooler hoses
Turbo faults
Actuator faults
Wastegate or VNT control issues
MAP and MAF sensor faults
Intercooler leaks
Exhaust restrictions
Fuel supply issues
Rail pressure faults
Wiring and control faults

Power loss can be air, fuel, exhaust, electrical or mechanical. The repair depends on the cause.

Brake, Suspension, Steering & Safety Repairs

Truck and commercial vehicle repairs are not just about engines.

We inspect and repair safety-critical systems including:

Brakes
Suspension
Steering
Wheel bearings
Driveline components
Cooling systems
Charging systems
Trailer connections
Electrical faults
Lighting faults

These systems matter because trucks, trailers and loaded work vehicles need to stop, steer and operate safely under real load conditions.

4WD Diesel Mechanic Gladstone

We also repair and service diesel 4WDs, utes and light commercial vehicles used for towing, work, touring and daily driving.

We work on common diesel models including:

Toyota LandCruiser, Prado and Hilux
Ford Ranger
Mazda BT-50
Isuzu D-MAX and MU-X
Mitsubishi Triton and Pajero Sport
Nissan Navara and Patrol
Holden Colorado
Jeep diesel models
Other diesel 4WDs, utes and light commercials

We handle servicing, diagnostics, cooling system repairs, turbo issues, drivability faults, DPF/EGR problems, towing-related issues and general diesel repairs.

Machinery, Civil & Agricultural Diesel Support

Our main focus on this page is truck and diesel vehicle repairs, but we can also assist with selected diesel machinery, civil equipment and agricultural equipment where practical.

This may include:

Earthmoving support equipment
Civil machinery
Farm machinery
Diesel-powered equipment
Worksite vehicles
Agricultural diesel equipment

If the job is better suited to the workshop, we will say so. If mobile support is practical, we will advise that too.

One Workshop for Truck, Diesel, Auto Electrical & Air Conditioning

Truck and diesel faults are not always just mechanical faults.

They can involve wiring, sensors, batteries, alternators, cooling systems, air conditioning loads, trailer wiring, control modules, previous repairs or poor maintenance.

We keep more of the job in-house because we handle:

Mechanical Repairs
Diesel Diagnostics
Truck & Trailer Repairs
Fleet Maintenance
Auto Electrical
Air Conditioning
4WD Repairs
Machinery & Equipment Repairs

That means less running around, less duplicated diagnosis, and a better chance of finding the real problem.

Why Choose Total Mobile Mechanical Services?

Truck and diesel mechanics servicing Gladstone and Calliope
Fully equipped Calliope workshop
Mobile support where practical
Diesel diagnostics before unnecessary parts replacement
Truck, trailer, fleet, 4WD and machinery experience
Auto electrical and air conditioning capability
Petrol and diesel specialists
Practical advice before major repairs
Clear communication and proper fault reporting
Built to support commercial vehicles, not just passenger cars

Areas We Service

We provide truck and diesel mechanic services across:

Gladstone • Calliope • Tannum Sands • Boyne Island • Benaraby • Mount Larcom • Yarwun • Clinton • Kirkwood • Central Queensland

Book Truck or Diesel Repairs

Tell us the vehicle, fault codes, symptoms, location and what has already been done.

We will tell you the best next step.