Diesel Engine Service

Power and Performance, Maintained by Experts

Diesel engines are built tough — designed to haul, tow, and perform under pressure. But to keep them running strong, they require specialized care. At Stone Automotive, we provide expert  diesel engine service  for trucks, SUVs, and diesel-powered vehicles of all types.


From routine  diesel maintenance  to complex diagnostics and repairs, our technicians understand the unique needs of  diesel engine vehicles  and provide solutions tailored to your vehicle’s make, model, and usage.

Close-up of a car engine's internal components, including gears, chains, and silver pipes.

What Makes Diesel Engines Different?

While both gas and diesel engines are internal combustion engines,   diesel engines  use   compression ignition  and run at higher torque, making them more powerful and efficient — especially under load.


Diesel engines also have added components like:

  • Diesel Particulate Filters (DPF)
  • Diesel Exhaust Fluid (DEF)  systems
  • Exhaust Gas Recirculation (EGR) valves


These systems require specialized attention to maintain fuel economy, reduce emissions, and extend the life of the engine.


At Stone Automotive, our ASE-certified technicians are trained in modern   diesel engine servicing  protocols for all major brands and configurations.


What’s Included in Our Diesel Engine Maintenance?

Diesel vehicles can last hundreds of thousands of miles — but only with proper care. Our maintenance services cover:


🛢️   Diesel Engine Oil Change
High-performance diesel engines require specialty oils that meet manufacturer specs.


🧰   Diesel Engine Filter Replacement
We replace fuel filters, air filters, and DPFs to maintain airflow and efficiency.


❄️   Coolant Check & Top-Up
We check coolant levels and quality to prevent overheating or corrosion.


🚛   Fuel System Maintenance
Includes fuel injector testing, fuel line inspection, and leak checks.


🌫️   Emission Control System Inspection
Ensure your   EGR valve,   DEF fluid, and   DPF  are working properly.


⚙️   Cylinder Compression Check
Measure internal engine pressure to detect cylinder wear or valve issues.


🔧   Valve Adjustment
Fine-tuning the EGR and valve timing for peak diesel engine performance.


Our services are designed to catch minor problems early — saving you from expensive repairs later.


Signs Your Diesel Vehicle Needs Service

If you’re noticing changes in performance, don’t wait. These symptoms may indicate that your diesel engine needs professional attention:

  • 🚨   Loss of power under load or while towing
  • 🌫️   Excessive smoke from the exhaust
  • 🔊   Unusual engine noises  (knocking, clattering, grinding)
  • ⛽   Poor fuel economy
  • 🛢️   Frequent oil changes or leaks
  • 🚗   Warning lights like “Check Engine”
  • 💧   Fluid spots or spills under the vehicle
  • 🔄   Rough idle or engine hesitation


Our technicians will perform a full   diesel engine inspection, run diagnostic scans, and provide a clear explanation of the issue, with a repair plan you can trust.


Diesel Engine Repair & Tune-Up Services

In addition to routine maintenance, we offer full   diesel engine repair, including:

  • Turbocharger inspection and replacement
  • EGR and DPF cleaning or replacement
  • Sensor and glow plug diagnostics
  • Injector repair or replacement
  • DEF system troubleshooting
  • Engine rebuilds for high-mileage vehicles


No matter the issue, you’ll get honest recommendations and high-quality workmanship from our experienced team.


Get Reliable Diesel Service at

Keep your diesel vehicle running with power and confidence. Since  2010, Stone Automotive has provided trusted   diesel engine servicing  to drivers in  Winfield, MO  and the surrounding communities.


📍 Visit us at   191 East Ave, Winfield, MO 63389
📞 Call us at (636) 566-6104 to schedule your diesel maintenance or repair