
▸ 24/7 ROADSIDE DISPATCH
24/7 Mobile Heavy Truck & Diesel Repair
Emergency Roadside Assistance. Engine & Transmission Diagnostic & Repair. Expert Electrical Troubleshooting. DPF/DEF/EGR Systems. Air brake Systems and ABS Troubleshooting. coolant systems. Fleet Maintenance Services.
24/7 Mobile Truck Repair & Diagnostics
Mobile Roadside Truck Repair, Engine, Transmission, Electrical systems, Air systems, EGR systems, and Fleet Maintenance Across Ontario & G.T.A
Engine
Transmission
Electrical Systems
Complete engine diagnostics & Troubleshooting using advance scanner tools and software to read trouble codes, monitor sensor data, and analyze engine performance. valve adjustment, injector services, fuel systems, coolant systems, electrical systems.
Expert in Electrical Diagnostic using Advance tools POINT TO POINT and professional Scanner.
Checking transmission Control Modules (TCM) for fault codes and monitoring shifting patterns or slippage, Fluid Maintenance, Clutch Adjustment, Component Repair & Rebuilds, transmission swap.
DPF/DEF/EGR Systems
Professional diagnostic and repair for DPF,DEF and EGR systems including forced regeneration, sensor diagnostic, SCR troubleshooting, Emission faults, derate conditions, and aftertreatment system repair.
Coolant Systems
Diagnostic Process: pressure Testing, finds hidden leaks, coolant quality & chemical analysis, combustion Gas check, head gasket test, component inspections: thermostat, cooling fan, hoses & Radiator.
Air Systems
Air Pressure won't rise or builds too slowly, Air loss exceeds 3-4 psi per minute, low air warning light/buzzer doesn't activate, brakes drag or will not fully release, brakes grab, are erratic, or pull to one side.


12 years of Roadside Experience
ON-SITE REPAIR. NO TOWING. LESS DOWNTIME.
When your truck breaks down, every minute costs money. NASS Heavy Trucks & Diesel Repair provides professional mobile diagnostics and repairs directly at your location.
24/7 Emergency Roadside Assistance
Breakdowns don't wait, and neither do we. Our mobile service units are available 24/7 across Ontario & G.T.A to provide on-site diagnostics, repairs and emergency roadside assistance for heavy-duty diesel trucks.
Call Now: 365 883 1446
Get Back Rolling
Do not let a breakdown derail your cargo schedule. Contact our dispatch team now for immediate roadside mechanical assistance across the GTA.
