Diesel Service Springfield MO

Professional diesel diagnostics, diesel engine repair, fuel system service, turbocharger repair, EGR diagnostics, DPF service, and maintenance for Power Stroke, Duramax, Cummins, Sprinter, and other diesel-powered vehicles.

Book Appointment Call 417-771-5435

Expert Diesel Repair & Diagnostics

Diesel engines are built for power, towing, durability, and fuel efficiency, but they require specialized diagnostics and maintenance. Whether you’re dealing with hard starts, loss of power, excessive smoke, injector problems, turbocharger issues, or check engine lights, Crown Auto Sales and Service provides professional diesel repair in Springfield, Missouri.

Our ASE-certified technicians diagnose diesel engines accurately using advanced scan tools and manufacturer service information to find the root cause—not just replace parts.

Common Diesel Problems We Repair

Performance Issues

  • Loss of power
  • Poor acceleration
  • Reduced fuel economy
  • Limp mode operation

Starting Problems

  • Hard starting
  • No-start conditions
  • Cold start issues
  • Glow plug faults

Warning Signs

  • Check engine light
  • Excessive exhaust smoke
  • Fuel system faults
  • DEF system warnings

Our Diesel Services

Diesel Diagnostics

  • Check engine light diagnosis
  • Computer diagnostics
  • Fuel pressure testing
  • Performance diagnostics

Fuel System Repairs

  • Fuel injector replacement
  • Fuel filter replacement
  • High-pressure pump diagnostics
  • Fuel contamination diagnosis

Turbocharger Service

  • Turbo diagnostics
  • Boost leak testing
  • Turbo replacement
  • Intercooler inspections

EGR & Emissions Repairs

  • EGR valve diagnostics
  • EGR cooler service
  • DPF diagnostics
  • Emission system repairs

Cooling System Repairs

  • Radiator replacement
  • Water pump service
  • Thermostat replacement
  • Coolant leak repairs

Preventive Maintenance

  • Oil changes
  • Fuel filter service
  • Cooling system maintenance
  • Scheduled diesel maintenance

Diesel Engines We Service

Ford Power Stroke

6.0L, 6.4L, 6.7L Power Stroke diagnostics, turbocharger repairs, fuel system service, and cooling system repairs.

GM Duramax

LB7, LLY, LBZ, LMM, LML, and L5P Duramax diagnostics, injectors, glow plugs, emissions systems, and fuel repairs.

Ram Cummins

5.9L and 6.7L Cummins diagnostics, turbo repairs, injector service, DEF system repairs, and maintenance.

Mercedes Sprinter

Diesel Sprinter diagnostics, emissions repairs, DEF system diagnostics, and fleet maintenance.

Commercial Fleets

Diesel work trucks, delivery vans, contractor fleets, and service vehicles.

Light Duty Diesel Vehicles

Diesel pickups, SUVs, work vehicles, and diesel-powered commercial equipment.

Why Choose Crown Auto?

Advanced Diesel Diagnostics

We use professional diagnostic equipment to identify diesel-specific issues accurately.

Experienced Diesel Technicians

Our team understands modern diesel fuel, turbocharger, emissions, and engine systems.

Financing Available

Synchrony Car Care™, EasyPay Finance, and Snap Finance available for qualifying repairs.

Free Diagnostic With Approved Repair

Diagnostic fees may be applied toward qualifying approved repairs.

Warranty Available

Most qualifying diesel repairs include warranty protection for added peace of mind.

Trusted Springfield Shop

Serving Springfield, Nixa, Ozark, Republic, Battlefield, Rogersville, and surrounding Southwest Missouri communities.

Diesel Service FAQ

Why is my diesel truck losing power?

Loss of power can be caused by fuel delivery issues, turbocharger problems, EGR faults, clogged fuel filters, boost leaks, or emissions-related concerns.

What causes black smoke from a diesel engine?

Black smoke often indicates excessive fuel delivery, injector problems, airflow restrictions, turbocharger concerns, or EGR-related issues.

How often should diesel fuel filters be replaced?

Most diesel vehicles require fuel filter replacement every 10,000–30,000 miles depending on manufacturer recommendations and operating conditions.

Do you work on Power Stroke, Duramax, and Cummins engines?

Yes. We service Ford Power Stroke, GM Duramax, Ram Cummins, Sprinter diesel engines, and many other diesel-powered vehicles.

Schedule Diesel Service Today

Keep your diesel vehicle running at its best with professional diagnostics, maintenance, and repairs from Crown Auto Sales and Service.

Crown Auto Sales and Service
1419 E Kearney St
Springfield, MO 65803
Phone: 417-771-5435
Email: service@crownautoservice417.com

Book Appointment Call Now
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🔧 Diesel Service & Repair in Springfield, MO – Power. Performance. Reliability.

When your diesel truck or fleet vehicle needs attention, trust the experts at Crown Auto Sales & Service. We provide full diesel service and repair in Springfield, MO — covering Duramax, Power Stroke, Cummins, EcoDiesel and other light- and medium-duty diesel systems. From fuel injection and turbo systems to glow plugs and emissions, our team delivers top-quality work with honest pricing.

  • Diesel engine diagnostics, performance tuning & repair
  • Fuel injector, pump & rail service or replacement
  • Turbocharger, EGR & DPF cleaning or replacement
  • Glow plug, starter, and charging system repair
  • Fleet maintenance programs available for diesel vehicles

Visit our shop at 1419 E Kearney St, Springfield, MO 65803 — just off I-44 near Highway 65. Click below for directions or call to schedule a diesel inspection today.

📞 Call (417) 771-5435 📍 Get Directions

Your diesel works hard — give it the care it deserves. Crown Auto delivers honest diesel repair Springfield drivers trust.

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