Expert Diesel Repair in St. Charles, IL
Full-Service Diesel Care for Work & Personal Trucks
When your diesel truck isn’t running right, you don’t want guesswork; you want answers. Whether you rely on your your Powerstroke for work, your Cummins for everyday driving, or your Duramax for towing, these engines are built to perform under pressure, but only when they’re cared for properly.
At Fox River Tire & Auto, we specialize in diesel engine repair that goes beyond just clearing a code. We serve St. Charles, Geneva, Batavia, Wayne, and Campton Hills with diagnostics, maintenance, and repairs for the most popular light-duty diesel engines, including Powerstroke, Cummins and Duramax platforms. Since 1965, our reputation has been built on clear communication, solid work, and taking care of people, not just their vehicles.
Why Diesel Engine Problems Can’t Wait, and Why We’re the Right Shop to Call
Diesel engines like the Powerstroke, Cummins, and Duramax are known for their power and durability, but that doesn’t mean they’re immune to issues. If you notice hard starts, power loss, black smoke, or strange knocking sounds, those aren’t problems to ignore. Unlike gas engines, diesel systems operate under extreme pressure, which means small problems can quickly turn into big (and expensive) ones.
At Fox River Tire & Auto, we specialize in light-duty diesel repairs tailored to your engine, whether you’re driving a Ford Super Duty, Ram 2500, or Chevy Silverado. Our ASE-certified techs know how to diagnose early signs of turbo lag, injector problems, glow plug failures, and fuel system breakdowns before they lead to poor fuel economy or serious engine wear.
We don’t just fix diesels. We protect your investment. When you bring your truck to us, you’re getting comprehensive service designed to keep your engine running strong for the long haul.
Don’t Ignore These Diesel Engine Warning Signs
Hard Starting or Slow Cranking
Excessive Exhaust Smoke
Loss of Power or Acceleration
Fuel Leaks or Strong Diesel Odor
Dashboard Warning Lights
Full Diesel Engine Repair Services
- Powerstroke Repair & Diagnostics – From EGR valves to turbo issues, we service all modern Ford Powerstroke engines.
- Cummins Engine Repair – Whether it’s fuel delivery, emissions, or sensor-related, our Cummins repair shop handles the work with care and precision.
- Duramax Diesel Repair – Whether you’re driving a 6.6L Duramax or another GM diesel variant, we provide expert diagnostics and high-quality repairs. From injector issues to turbo performance, our techs know what it takes to keep your Duramax running at its best.
- Fuel Injector Testing & Replacement – Restore performance, power, and fuel economy with precision injector repair.
- Turbocharger Inspection & Replacement – Boost issues? We’ll test and repair or replace your turbo for full performance.
- Glow Plug & Cold-Start System Repair – Diesel won’t start on cold mornings? We’ll get it back in shape for any season.
- Digital Vehicle Inspections – Our digital vehicle inspections (DVIs) include photo documentation, so you see exactly what we see.
- Emission & Sensor Diagnostics – We test EGR valves, MAP/MAF sensors, and O2 sensors that affect your engine’s balance and emissions compliance.
Why St. Charles Diesel Owners Choose Fox River Tire & Auto
- ASE-Certified Diesel Technicians – Trained and experienced with Ford Powerstroke, Chevy Duramax, and Ram Cummins trucks.
- Advanced Diagnostic Tools – Snap-On and Autel scan tools ensure precise diagnostics on today’s complex diesel systems.
- No Guesswork, Just Honest Service – We never upsell or recommend work you don’t need. You’ll always understand what’s going on and why.
- High-Quality Parts You Can Trust – OEM or better parts used for every job to ensure long-term durability.
- 3-Year/36,000-Mile NAPA Gold Warranty – Diesel repair covered nationwide, so you’re protected even when the road takes you far.
- Customer Convenience – Early drop-off, after-hours pickup, text-to-pay, and friendly, no-pressure communication.
- Family-Owned & Proudly Local – Fox River Tire & Auto has been part of the St. Charles community since 1965. We’re a family-owned shop serving our neighbors with integrity, supporting local families, and giving back whenever we can.
- Best of the Fox Recognized – We’ve earned the community’s trust and continue to be a top choice for auto repair.
Our Amenities
Clean & comfortable waiting area
Flexible vehicle hand-off options
Early bird drop-off
Text-to-pay & online payment
Shuttle rides for your convenience
After-hours key drop with lockboxes
3 year / 36,000 mile parts & labor
St. Charles Diesel Repair You Can Count On. Book Your Visit Today
Whether your Powerstroke is acting up, your Cummins is down on power, or your Duramax won’t start, you’ve got a team ready to help. At Fox River Tire & Auto, we know your truck is more than just transportation; it’s a tool, a partner, and an investment worth protecting.
Whether you’re in Wheaton, South Elgin, Elburn, or Wasco, our expert team is ready to handle all your diesel repair needs. Trust us for reliable, high-quality service that gets you back on the road fast.
Stop by 20 N 17th St, St. Charles, IL 60174, call us at 630-584-0655, or schedule your diesel service online today.
Serving the Fox Valley Community for over 60 years. We’ll treat your truck like it’s our own and treat you like family.
