Restore Power, Improve Fuel Economy, and Stay DOT-Compliant
Modern diesel engines depend on clean, functioning emission systems to operate efficiently — and to pass inspections. At Road 1 Inc, we specialize in DPF cleaning, EGR service, and full aftertreatment system repairs that help you avoid costly breakdowns, derates, and DOT violations.
Whether your truck is in a forced regen loop or the dash is flashing “Check Emissions,” we’ve got the tools and expertise to fix it fast.
We Work With Your Fleet Maintenance Company
- We know the process from approvals to payment.
- We handle the paperwork so you don't have to.
- We keep your trucks moving with fast repair when and where you need them.
24/7 Emergency Diesel Repair Experts
Trusted by Columbia’s fleet managers and owner-operators for on-site service anytime, anywhere.
Certified Diesel Technicians
Our team combines over 20 years of hands-on experience in diesel engine diagnostics.
Fleet Contracts with DOT Compliance Support
Partnered with local logistics, construction, and agricultural businesses to keep fleets road-ready and regulation-compliant.
Backed by Real Reviews & Repeat Clients
Hundreds of trucks serviced with consistent 5-star testimonials praising our speed, honesty, and technical precision.
Quality Repairs & Service Guaranteed
Emission System Services We Provide
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DPF (Diesel Particulate Filter) removal & thermal cleaning
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Forced and parked regen service
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DPF pressure sensor and temp sensor replacement
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DOC and SCR diagnostics and service
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DEF tank heaters, level sensors, and doser valve repairs
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EGR valve and cooler cleaning/replacement
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Check engine and emissions code diagnostics
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Post-repair system resets and road testing
Common Symptoms of DPF or Emissions Problems
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Loss of power or derated engine
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Dash showing “Exhaust System” or “Check Emissions”
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Repeated regen cycles or failed regen attempts
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Increased fuel usage and excessive smoke
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Fault codes related to NOx sensors, EGR, or DEF system
Brands We Service
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Cummins (ISX, X15, ISB)
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Detroit Diesel (DD15, DD13)
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CAT (ACERT series)
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International MaxxForce/Navistar
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PACCAR, Volvo, Mack, and more
Why It Matters
Ignoring DPF/emissions issues can lead to:
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Engine derate or shutdown on the road
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Failed DOT inspections or emissions violations
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Expensive component damage (injectors, turbos)
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Reduced engine life and higher operating costs
Why Choose Road 1 for DPF & Emissions Service
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Full thermal DPF cleaning with flow testing
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Certified techs with OEM-level diagnostic tools
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In-shop or mobile service availability
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Transparent pricing and fast turnaround
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Columbia’s trusted aftertreatment repair experts
Customer Feedback
"My DD15 was in constant regen. Road 1 cleaned the DPF, replaced the NOx sensor, and cleared all codes same day. Truck’s back to pulling strong." – Owner-Operator, Columbia
Frequently Asked Questions
How often should my DPF be cleaned?
Typically every 150,000–200,000 miles, or sooner if you drive short-haul routes or idle frequently.
Do you perform DPF cleaning in-house?
Yes. We offer full thermal DPF cleaning, flow testing, and same-day turnaround in most cases.
What causes forced regens to fail?
Often clogged filters, bad sensors, or a failing doser/injector prevent proper regen. We identify the root cause and correct it.
Can you clear DPF fault codes after repair?
Yes. We use OEM-grade software to clear codes and reset the system after repairs or cleaning.
Do you help fleets stay emissions-compliant?
Absolutely. We offer fleet contracts with scheduled DPF cleanings and pre-inspection checks.
Book Your DPF Cleaning or Emissions Repair
Call (803) 794‑5155 or [Request Service Online]
Cleaner trucks. Stronger performance. Road 1 has your back.