DPF & Emissions Service
Specialized cleaning, diagnostics, and repair for modern commercial diesel systems to ensure compliance and efficiency.
The work, done right
Modern diesel emissions systems are unforgiving when neglected. We provide specialized DPF cleaning, regen and aftertreatment diagnostics, and emissions repair that keeps your trucks compliant, fuel-efficient, and out of derate — so a sensor fault never turns into a stranded load.
What's included
- DPF cleaning, baking & flow testing
- Aftertreatment & DEF system diagnostics
- Forced regen & derate resolution
- Sensor, EGR & SCR repair
- Emissions compliance support
Signs it's time to call
- Frequent or back-to-back forced regenerations
- Reduced power or an active derate warning
- Check engine or emissions warning lights
- Worsening fuel economy
- DEF system, EGR, or aftertreatment sensor faults
Spotting any of these? Don't wait for a roadside failure — call (206) 304-6870 and we'll take a look.
DPF & Emissions Service — FAQs
Common questions about this service. Need something specific? Reach out and we'll walk you through it.
Why does my truck keep going into regen or derate?
Repeated regens and derates usually mean the DPF is clogged or a sensor in the aftertreatment system is reporting a fault. We diagnose the root cause — DPF, DEF, EGR, SCR, or sensors — and resolve it so you're not stuck cycling through regens or losing power.
Can you clean a clogged DPF?
Yes. We provide DPF cleaning, baking, and flow testing to restore proper flow, plus the diagnostics to confirm the filter is the actual problem and not a downstream fault.
What turns on the check engine or emissions light?
On modern diesels it's often the aftertreatment system — a sensor, EGR valve, SCR component, or DEF dosing issue. We pull the codes, find the real cause, and repair it to keep you compliant and out of derate.
How often should a DPF be serviced?
As a general guideline, many fleets clean the DPF somewhere around every 150,000–250,000 miles, but duty cycle matters — lots of idling and short runs shorten that interval. We can recommend a schedule based on how your trucks actually run.
Ready to reduce downtime?
Get a straight answer and a fair quote from technicians who treat your rig like it carries our name.