Restore Power, Fuel Efficiency, and Performance
When your diesel engine starts losing power, blowing black smoke, or struggling to pull under load, your turbo or fuel system could be the problem. At Road 1 Inc, we specialize in diagnosing and repairing turbochargers, injectors, high-pressure fuel systems, and all related airflow and fueling components for heavy-duty diesel trucks.
From Cummins and CAT to Detroit and PACCAR, we deliver precision repairs that restore performance and protect your engine.
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
What We Repair
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Turbocharger diagnostics, rebuilds, and replacement
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Wastegate, VGT actuator, and boost sensor testing
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Fuel injector testing and replacement
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Injection pump diagnostics and repair
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Fuel rail pressure issues and line leaks
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EGR crossover and charge air cooler leaks
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Boost pressure drop and smoke issues
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Fuel filter housing and water separator service
Symptoms of Turbo or Fuel System Failure
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Sudden loss of power or turbo boost
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Engine derate or “Low Boost” warning
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Hard starts or long crank times
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Excessive exhaust smoke (black or white)
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Poor fuel economy
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Rattling or whining from turbo area
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Check engine light with injector or boost codes
Supported Engine Brands
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Cummins ISX, ISB, X15
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CAT C15, 3126, ACERT
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Detroit DD13, DD15, Series 60
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International/Navistar MaxxForce
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Volvo, Mack, PACCAR, and others
Why Choose Road 1
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In-depth diagnostics for fuel and air systems
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OEM-level tools for turbo and injector calibration
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High-pressure fuel testing equipment
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Experienced techs trained on variable and fixed-geometry turbos
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Mobile fuel system repairs for fleet vehicles
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Transparent diagnostics with repair breakdowns
Real Customer Review
"My truck was losing power on hills. Another shop told me to replace the turbo. Road 1 diagnosed a leaking charge air cooler and stuck EGR — fixed in a day, no turbo needed. Honest and sharp." – Owner-Operator, SC
Fuel & Turbo System FAQ
How can I tell if it’s my turbo or injectors causing power loss?
We use scan tools, boost pressure testing, and fuel flow analysis to isolate the issue before recommending any parts.
Do you install reman or new turbochargers?
Both. We offer OEM-new, high-quality reman units, and will rebuild your existing turbo if viable.
Can you test injectors without removing them?
Yes. We use balance rate and pressure tests to assess injector performance before pulling components.
What causes premature turbo failure?
Most failures come from oil contamination, poor air filtration, or overheating. We inspect all related systems during service.
Do you offer mobile turbo or fuel repair?
Yes. Many injector, line, and turbo actuator repairs can be handled on-site for fleets and operators in the field.
Schedule Turbo or Fuel System Repair Today
Call (803) 794‑5155 or [Request Diagnostic Service]
Power problems? Trust Columbia’s diesel performance experts.