Aftertreatment & Emissions Systems
DPF, DEF, and EGR maintenance and repair for Cummins, Detroit, PACCAR, and CAT heavy-duty trucks.
Schedule an Emission System CheckWhy Aftertreatment Service Matters
Modern diesel engines rely on advanced aftertreatment systems to meet emission standards—but soot buildup, sensor faults, and DEF quality issues can quickly lead to costly downtime if not serviced regularly.
- DPF cleaning every 200,000-250,000 km (or sooner for city and short-haul units)
- Full emission system inspection every 6 months or 20,000 hours of operation
- DEF filter replacement every 300,000 km
- Frequent regen cycles or failed regenerations
- Loss of power and poor throttle response
- "Check Engine" or "Emissions Fault" alerts
- White exhaust smoke or sulfur smell
Common Issues We See
- DPF clogging from excessive idling and short hauls
- NOx sensor and EGR valve malfunctions
- DEF pump and injector failures on Cummins ISX15 and Detroit DD15 engines
- SCR catalyst efficiency codes triggered by poor DEF quality
Winter Watch - Manitoba Conditions
- DEF freezing below -11 C causing injector or pump damage
- Sensor wiring brittleness in extreme cold leading to false codes
- Crystallized exhaust residues restricting flow
Preventive Tips
- Park trucks in heated storage during extreme cold
- Use DEF certified for ISO 22241-1 standards
- Run complete regen cycles before long idle periods
How Reeset Handles It
At Reeset Truck & Trailer Ltd., our technicians specialize in comprehensive aftertreatment diagnostics for all major heavy-duty engines.
- On-truck and off-truck DPF cleaning using high-temperature pulse equipment
- DEF system flush and line inspections for crystallization
- Sensor calibration and ECM reset post-repair
- EGR cooler descaling and valve cleaning using OEM-approved methods
- Compliance checks against Manitoba Provincial Emission Standards
Why Choose Reeset
- In-depth diagnostics for Cummins, Detroit, PACCAR, and CAT engines
- Preventive maintenance programs tailored for Manitoba climate
- Skilled technicians trained in modern electronic emission systems
- Environment-focused service helping fleets stay compliant and efficient
Keep your emission systems clean, efficient, and compliant.
Schedule an aftertreatment inspection and we will coordinate the diagnostics your fleet needs.