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Detroit Diesel DPF Cleaning in 3 Hours Only

Trucx Offers Detroit Diesel DPF cleaning with Warranty

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Why Detroit Diesel's One Box System Requires Specialist DPF Cleaning

Beginning with the GHG14 emissions platform, Detroit Diesel introduced the innovative 1-BOX™ aftertreatment system for DD13, DD15, and DD16 engines. Unlike older designs that separated emissions components into multiple housings, the One Box combines the Diesel Oxidation Catalyst (DOC), Diesel Particulate Filter (DPF), and Selective Catalytic Reduction (SCR) catalyst into a single compact assembly.

The design reduces weight, improves packaging efficiency, and simplifies installation on modern trucks. However, it also creates a unique maintenance challenge. Because all emission components are integrated into a single housing, a problem in one section quickly affects the performance of the others.

For example:

  • A restricted DPF increases exhaust backpressure throughout the system.
  • A contaminated DOC reduces the heat generation needed for successful regeneration.
  • SCR inefficiency affects NOx conversion performance and triggers ACM fault responses.
  • DEF contamination can accelerate fault escalation and induce engine derates.


Earlier EPA07 and EPA10 Detroit engines used separate aftertreatment housings, but they still relied on highly sophisticated emissions management strategies that monitored system health continuously.

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Detroit’s Aftertreatment Control Module (ACM) tracks differential pressure, exhaust temperatures, NOx conversion rates, and DEF system performance around the clock. Once performance thresholds are exceeded, fault codes begin accumulating rapidly.

Common Detroit Diesel fault codes include:

  • SPN 3719 – Excessive DPF soot accumulation
  • SPN 3251 / FMI 0 – DPF pressure outside acceptable limits
  • SPN 5246 – SCR efficiency or DEF-related derate condition
  • SPN 3712 – Final inducement active with 5 mph speed limitation
  • SPN 3246 / FMI 15 – DOC temperature performance issue


These warnings should never be ignored. Early intervention with professional
Detroit Diesel DPF cleaning helps prevent expensive repairs and operational disruptions.

DOC & DPF Cleaning

Our On-Site Detroit Diesel DPF Cleaning Process

Trucx was built to minimize downtime for commercial trucking operations. Our mobile units travel directly to fleet terminals, truck stops, distribution centers, logistics hubs, and maintenance yards in Brampton, Mississauga, Toronto, and throughout Canada.

The service is performed without unnecessary equipment removal and follows a systematic cleaning sequence designed to restore every critical emissions component.

  • Diesel Oxidation Catalyst Restoration: Hydrocarbon deposits, sulfur contamination, and organic buildup are removed from the DOC. Restoring catalyst efficiency improves heat generation and supports successful regeneration cycles.
  • DPF Filter Cleaning: Accumulated soot and hardened ash deposits are extracted from the filter substrate. Airflow restrictions are eliminated, and differential pressure readings return to manufacturer specifications.
  • SCR Catalyst Service: DEF residue and crystallized urea deposits are removed from catalyst surfaces. This restores NOx conversion efficiency and helps eliminate SCR-related fault events.
  • EGR Valve and Cooler Cleaning: Carbon buildup inside EGR passages restricts airflow and affects emissions performance. Trucx restores proper flow rates and valve operation by removing accumulated deposits.
  • Turbocharger Cleaning: Carbon contamination and oil coking inside the turbocharger can reduce boost pressure and affect engine responsiveness. Cleaning these components helps restore performance and efficiency.

Every Detroit Diesel DPF cleaning service includes a comprehensive diagnostic before and after cleaning, measuring:

  • DPF differential pressure
  • DOC performance
  • SCR conversion efficiency
  • ACM and DDDL parameter status
  • Active and historical fault code activity


Results are documented and provided for maintenance records.
Verified improvement or no charge.

Detroit Diesel Engine Platforms and Trucks Trucx Services

Trucx performs Detroit Diesel DPF cleaning across all major Detroit engine platforms operating throughout Canada and North America.

DD13 (12.8L)

Found in: Freightliner Cascadia, Western Star 4700

Supported configurations: EPA10, GHG14 One Box, GHG21 systems

DD15 (14.8L)

Common applications: Freightliner Cascadia, Western Star 4900, Western Star 5700

Supported configurations: EPA07 two-box, EPA10 two-box, GHG14 One Box, 2V2 aftertreatment systems

DD16 (15.6L)

Installed in: Freightliner Coronado, Western Star heavy-haul platforms

Features: One Box architecture, High-horsepower vocational applications

Series 60 Engines

Legacy fleet support for: Freightliner Classic, Kenworth T600, Kenworth T800, Peterbilt 378, Peterbilt 379

Whether your truck uses an EPA07, EPA10, GHG14, or GHG21 emissions package, Trucx has the equipment and expertise to service the system correctly.

Schedule Mobile Detroit Diesel DPF Cleaning

Don’t allow a manageable soot-loading issue to become a trip-ending inducement. Trucx provides complete Detroit Diesel DPF cleaning at your location, restoring One Box performance, verifying DDDL parameters, and helping your trucks return to service quickly.

Every visit includes a free diagnostic, documented results, warranty-backed workmanship, and 24/7 mobile support across Canada.

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Other Diesel Platforms We Service Alongside Detroit Diesel

Detroit Diesel is only one of the many diesel platforms serviced by Trucx.


Managing a mixed fleet? One mobile dispatch can service multiple engine platforms during the same visit.

Frequently Asked Questions

What is the Detroit One Box system?

The One Box system integrates the DOC, DPF, and SCR catalyst into a single emissions housing. Because all three components operate together, contamination in one area can negatively affect the entire system. Effective cleaning must address every section of the assembly.

An inducement derate is Detroit’s enforcement mechanism for emissions-related faults. It progresses through multiple stages, eventually limiting vehicle speed to approximately 5 mph if issues remain unresolved.

Yes. Detroit DiagnosticLink procedures are often required to clear stored parameters, verify repairs, and establish a new operating baseline after service has been completed.

Absolutely. Our mobile technicians perform Detroit Diesel DPF cleaning at truck stops, fleet yards, distribution centers, logistics facilities, and maintenance depots across Canada.

SPN 3719, SPN 3251, SPN 5246, and SPN 3712 are among the most common indicators of serious aftertreatment problems. Early diagnosis helps prevent costly derates and downtime.

Yes. One Box replacements can cost between $8,000 and $15,000 or more depending on the configuration. Professional cleaning restores system performance at a fraction of replacement costs when components remain structurally sound.

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