- Engine Repair
- Powertrain Repair
- Concrete Truck Repair
- HVAC Repair
- Brakes & Suspensions
- Electrical Diagnostics
- Welding, Fabrication & Customization
- EGR, DPF & Exhaust System Repair
- Fleet Repair & Preventative Maintenance
- Steering System
- Truck & Trailer Shuttle Service
- CVI Inspections
- Trailer Repair
- Mobile Services
- Tow Truck Repair
- Recreational Vehicle Repair
- Pre-Purchase Inspections
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Mobile, In-Shop & Fleet Repairs in One Trusted Place
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Expert Emissions System Diagnostics & Repairs in Langley, BC and Surrounding Areas
Modern diesel engines rely on complex emissions systems to stay compliant, efficient, and road-legal. At 6NZ Truck & Equipment Repair Ltd, we specialize in complete EGR, DPF, SCR, DOC, and exhaust system diagnostics, cleaning, and repairs for all makes of heavy-duty trucks. Our certified technicians are trained to work with advanced aftertreatment technologies to restore performance, eliminate downtime, and keep your truck emissions compliant.
Whether you're dealing with a clogged diesel particulate filter (DPF), faulty EGR valve, or SCR system warning, we’ll get your system running clean and efficiently
Our Emissions System Services Include:
DPF Cleaning & Regeneration
We offer in-house and off-truck DPF cleaning, forced regeneration, filter replacement, and pressure sensor diagnostics. A clogged DPF can lead to performance loss and engine faults—our experts prevent that.
Restore fuel economy and prevent costly repairs with professional DPF service.
DOC (Diesel Oxidation Catalyst) Service
The DOC plays a key role in reducing carbon monoxide and hydrocarbons. We diagnose flow restriction, contamination, and temperature sensor issues to ensure proper DPF function.
Maintain clean emissions and avoid unnecessary DPF failures.
SCR (Selective Catalytic Reduction) System Repair
From DEF injector and sensor issues to NOx sensor replacements, we provide full SCR troubleshooting and repairs to prevent derating and warning codes.
Stay compliant and efficient with professional SCR system service.
EGR System Service
We inspect and service EGR valves, EGR coolers, and control modules for proper flow and performance. An inefficient EGR system can cause overheating, engine misfires, and excess emissions.
Reduce emissions and protect your engine with expert EGR repair.
Exhaust & Aftertreatment Diagnostics
We perform complete system diagnostics using OEM-grade software to identify sensor faults, soot accumulation, and backpressure issues.
We get to the root of the problem—fast.
We Service All Major Truck & Engine Makes:
Truck Makes: Freightliner, International, Kenworth, Mack, Peterbilt, Volvo, and Western Star
Engine Makes: CAT, Cummins, Detroit Diesel, Volvo, PACCAR, Mack
Emission Brands Supported: Detroit DPF & DOC, Cummins Aftertreatment, Volvo I-Shift Emissions, Mack M-Drive, and more.
We proudly offer Emissions System Diagnostics & Repairs services in:
Langley, Abbotsford, Surrey, Chilliwack, Maple Ridge, Coquitlam, Annacis Island, Richmond, White Rock, Vancouver, and surrounding areas.