MOBILE TRUCK & TRAILER REPAIR
From a no-start to a stubborn fault code, get mobile repair and diesel diagnostics where your truck is.
Available 24/7 across Brampton & the GTA.
WHAT WE DO
Practical repair and troubleshooting for owner-operators and fleets. Call with your location, truck details and symptoms.
Brakes, suspension, air leaks, trailer lighting and wiring. Mobile support for the issues that interrupt your day.
Check-engine lights, no-starts, loss of power and intermittent faults. Component testing to help pinpoint the cause.
Starting and charging problems, wiring faults, sensors and communication issues across connected truck systems.
Aftertreatment fault diagnosis, regeneration troubleshooting and component testing for DPF, DEF and EGR systems.
BEYOND THE FAULT CODE
Engine, transmission, ABS or electrical — tell us what the truck is doing. We work through the symptoms and diagnostic information to help identify what needs attention.
DIAGNOSTIC SUPPORT ACROSS MAJOR SYSTEMS
Cummins · Detroit · PACCAR · Volvo
Mack · Hino · Allison · Eaton
Call with your model and year to confirm service for your vehicle.
A CLOSER LOOK AT OUR WORK
From engine components to transmission systems, take a look at these clips from our repair work. Tap any video to play.
A close-up look at the cylinder block during engine work.
Working around the rocker arms and valve springs.
A look inside the transmission at the valve body and electrical connections.
MOBILE SERVICE THAT FITS YOUR WORK
Diesel Doc Truck Fix provides mobile truck and trailer repair in Brampton and the Greater Toronto Area. Contact us for a breakdown, an ongoing fault or a maintenance enquiry.
Describe the problem before we attend so we can discuss the next step, access to your vehicle and whether the work can be carried out on site.
Your truck is your livelihood. Call with the symptoms, warning lights and any recent repairs so we can understand what has changed.
Share the unit number, driver's contact details and truck location. For multiple vehicles or planned maintenance, call to discuss the work and scheduling.
Tell us your exact location and whether the vehicle is in a safe place to access. We will confirm service availability and discuss the expected arrival time.
HOW IT WORKS
A few details up front help us prepare for your truck and the problem you're facing.
Call or text 647-914-2644 with your location, truck make, model, year and engine type if known.
Describe what happens and when it started. Photos of warning lights, fault codes or the affected part can help.
Discuss availability, access to the truck and pricing before arranging service. Repair options depend on the fault and parts required.
TRUCKS, ENGINES & DRIVELINES
Diagnostic and repair enquiries for heavy-duty trucks from Freightliner, Western Star, Peterbilt, Kenworth, Volvo, Mack, International and Hino.
We also support enquiries for Cummins, Detroit, PACCAR, Volvo and Mack engines, plus Allison and Eaton transmission systems.
Coverage varies by vehicle, system and repair. Call with your model and year to confirm the service you need. Brand names identify the vehicles and systems discussed; Diesel Doc Truck Fix is an independent service business.
BEFORE YOU CALL
Yes. We operate 24 hours a day, seven days a week. Call to confirm availability and arrival time for your location.
We provide mobile service in Brampton and the GTA. Many diagnostic and repair jobs can be assessed on site. Call to discuss your issue and whether the location is suitable for the work.
Send your location, truck make, model, year, engine type if known and a description of the problem. Include fault-code photos and let us know whether the engine starts, the truck moves and any recent work has been completed.
We offer engine and aftertreatment diagnostics, including power-loss, DPF and DEF concerns. A fault code is a starting point; further checks help determine the cause and the repair needed.
Yes. Contact us about trailer lights, wiring, air leaks, brake and suspension concerns. Describe the issue so we can confirm the work and any parts requirements.
Pricing depends on your location, the diagnostic work, labour and parts needed. Call or text with the details to discuss pricing before arranging service.
BRAMPTON & THE GREATER TORONTO AREA
Mobile truck and trailer service
Open 24 hours, every day.
Send your location, truck make and model, and a short description of the problem. Call to confirm arrival time and service availability.