Professional Diesel Repair in Malta, DeKalb, & Rochelle, IL
If you drive a diesel vehicle, you know it takes more than just any shop to keep your engine running right. Whether you’re behind the wheel of a Power Stroke, Duramax, Cummins, or a fleet of Sprinters, having a skilled diesel mechanic you can rely on makes all the difference. At Arndt Automotive, we offer professional diesel repair in Malta, DeKalb, and Rochelle, IL, with the knowledge, tools, and experience to keep your diesel vehicle dependable and road-ready.
Why Diesel Engines Need Specialized Service
Diesel engines are powerful and efficient but also complex. They operate differently than gasoline engines, and not every auto repair shop has the tools or training to work on them properly. From high-compression combustion to advanced fuel injection systems and turbochargers, diesel vehicles demand precise care.
At Arndt Automotive, our ASE-certified team understands the intricacies of diesel systems and delivers repairs that meet or exceed factory standards.
Common Diesel Repairs We Handle:
- Fuel injector replacement and cleaning
- Glow plug diagnostics and replacement
- Turbocharger repairs and boost control
- EGR valve cleaning and replacement
- DPF (Diesel Particulate Filter) service
- High-pressure fuel pump issues
- Diesel engine diagnostics
- Routine diesel engine service and inspections
We don’t just clear codes—we get to the root of the issue to prevent repeat visits.
FAQs About Diesel Service & Repair
Why is my diesel engine hard to start? This could be related to worn glow plugs, fuel delivery problems, or battery issues. Cold weather can also affect diesel ignition.
What causes black smoke in a diesel vehicle? Black smoke often signals unburned fuel, typically caused by dirty injectors, a clogged air filter, or turbo issues.
How often should I change the oil in my diesel truck? Most diesel vehicles need an oil change every 5,000 to 7,500 miles, but it depends on usage. Towing, idling, and climate can affect intervals.
Can I use regular oil for my diesel engine? No. Diesel engines require oil formulated for high temperatures and soot buildup. We only use manufacturer-recommended oil and filters.
Do you work on diesel fleet vehicles? Yes. We handle small business and commercial fleet diesel service, offering consistent maintenance and priority scheduling.
Diesel Engine Service for Light and Medium-Duty Vehicles
We specialize in light-duty and medium-duty diesel trucks, vans, and SUVs—perfect for both personal use and commercial needs. Our technicians are trained to service:
- Ford Power Stroke (6.0L, 6.4L, 6.7L)
- Chevrolet/GMC Duramax
- Dodge Ram Cummins
- Sprinter vans (Freightliner, Dodge, Mercedes-Benz)
- Diesel Jeep, Volkswagen, and Land Rover models
We can tackle everything from turbocharger replacements to routine fuel filter changes. Whether you drive a rugged Cummins for hauling or a responsive Duramax for daily driving, we’ve got the diesel expertise to keep it performing at its best.
Fleet Diesel Maintenance
If your business relies on diesel vehicles, downtime is money lost. Arndt Automotive offers reliable and fast fleet maintenance services to keep your commercial operations on schedule. We offer priority scheduling and customized service plans to keep your fleet running strong.
Fleet Services Include:
- Preventive maintenance
- Diesel diagnostics
- Emission system repairs
- Scheduled inspections
- Quick turnaround times
Our team works efficiently so your team can keep moving.
Signs Your Diesel Vehicle Needs Service
Don’t wait for a breakdown. If you notice any of these symptoms, it’s time to schedule diesel service:
- Hard starts, especially in cold weather
- Excessive smoke from exhaust (white, blue, or black)
- Lack of power or sluggish acceleration
- Poor fuel economy
- Strange knocking or ticking noises
- Check engine light or other dashboard warnings
Catching problems early can prevent expensive repairs and downtime.
Trust Arndt Automotive for Diesel Repair & Service
Not every shop understands diesel the way we do. Our customers choose Arndt Automotive because we offer:
- Experienced diesel technicians
- Advanced diagnostic equipment
- Honest estimates and transparent communication
- OEM-quality parts and fluids
- Fast turnaround and friendly service
- A family-run shop with deep community ties
We don’t believe in patchwork repairs. We fix it right the first time.
Conveniently Serving Malta, DeKalb, and Rochelle, IL
Whether you live in Malta, commute from Rochelle, or run a business in DeKalb, we’re here to provide the diesel service you need. Our shop is easy to reach, and our team is always happy to explain repairs, offer maintenance tips, and work with your schedule.
Signs Your Diesel Engine Needs Attention
Diesel engines can develop specific problems that require professional expertise. Common signs of trouble include difficulty starting, excessive smoke from the exhaust, or a noticeable drop in power. Unusual noises, such as knocking or rattling, can also indicate internal issues. If your check engine light comes on or your fuel efficiency drops significantly, it’s time to have your diesel vehicle inspected.
Specialized Care for Cummins, Power Stroke, and Duramax
Each diesel engine brand has its own design and maintenance requirements. Cummins engines are known for their strength and reliability but may face injector or turbocharger issues over time. Power Stroke engines often require attention to EGR systems and high-pressure fuel pumps. Duramax engines are praised for their performance but may encounter problems with glow plugs or fuel injectors. At Arndt Automotive, we have the knowledge and tools to address the specific needs of these popular diesel engines.
Comprehensive Diesel Services
Our diesel repair services cover everything from routine maintenance to major overhauls. We handle oil changes, fuel system repairs, and turbocharger replacements, ensuring every component of your engine performs as it should. Advanced diagnostic tools allow us to quickly identify problems and provide precise solutions, minimizing downtime and getting your vehicle back on the road.
Why Choose a Diesel Specialist?
Diesel engines differ significantly from gas-powered ones, requiring specialized training and equipment for proper service. Trusting a diesel specialist ensures that your vehicle receives the care it needs to deliver peak performance and longevity. At Arndt Automotive, we’re committed to providing exceptional service tailored to diesel vehicles.
Schedule Diesel Engine Service with Arndt Automotive
Don’t let diesel engine problems slow you down. Visit Arndt Automotive for expert diesel repair in Malta, DeKalb, & Rochelle, IL and experience the difference specialized service can make. Contact us today to book an appointment for your Cummins, Power Stroke, or Duramax engine. We’re here to keep your diesel running strong for every mile ahead.
