Diesel Repair

Diesel Repair in Dallas, TX


As a FAMILY-OWNED business, we pride ourselves on our OEM certifications and guarantee swift turnarounds.

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Services

Expert Solutions for Truck Owners


Diesel trucks and heavy-duty vehicles are one of our specialties at Southwest Auto. Our specialized diesel mechanics have the skills and tools to fix complex engines and other systems of your diesel vehicle.



Our ASE-certified technicians have over 35 years of experience in diesel repair services in Dallas, TX. We can diagnose and repair issues with fuel systems, transmissions, electrical components, and more.


Diesel engines power many commercial vehicles and require expert care. For all things diesel, come see us. Book your appointment online today!

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diesel repair in Dallas, TX | Southwest Auto

Our Diesel Services in Dallas, TX


We offer a wide range of diesel services in Dallas to keep your vehicle at peak performance. Our skilled mechanics work on all types of diesel engines, including Cummins, Power Stroke, and Duramax.


Our services start with thorough diagnostic checks. We use advanced tools to pinpoint issues quickly and accurately and provide exceptional service.


Common diesel repairs we perform include:


  • Engine replacements
  • Fuel system repairs
  • Turbocharger replacements
  • Injector services
  • Transmission work
  • Exhaust system repairs


We also provide routine maintenance like oil changes, filter replacements, and tune-ups. This helps keep diesel vehicles running smoothly.


For trucks and heavy equipment, we offer specialized services. We aim for fast turnaround times to get vehicles back on the road. Most repairs are completed within 1-3 days, depending on the issue.

Cummins

Cummins is a major player in the diesel engine industry. Many truck owners in Dallas, TX rely on Cummins engines for their power and reliability.

Powerstroke

Powerstroke engines are a popular diesel option in Dallas. These Ford-designed motors power many F-Series trucks. Drivers choose them for their strength and towing ability.

DuraMax

DuraMax robust engines are known for their strength and reliability. Owners often seek specialized repair services to keep their DuraMax running smoothly.

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Common Diesel Engine Problems and Solutions


Here are some common problems that diesel engines face:

  • Glow plug failure
  • Fuel injector problems
  • Engine overheating
  • Oil oxidation
  • Contaminated fuel

Our Diesel Repair Process in Dallas, TX


Our diesel repair in Dallas, TX typically starts with a diagnostic test. Our mechanics use special tools to check the engine's computer system and find issues.



Next, they inspect the engine parts visually. This helps spot wear and tear or damage that might not show up in computer tests.


We'll then fix or replace broken parts. After the necessary repairs are completed, we check for smooth operation and proper power output.

Diesel Truck Preventive Maintenance

Preventative maintenance keeps diesel engines running smoothly. It prevents breakdowns and extends engine life. Proper care also improves fuel efficiency. Preventive maintenance programs are one way to keep your diesel or heavy duty truck in great shape.



Here's a basic maintenance checklist for diesel engines:

  • Change oil and filter
  • Replace fuel filter
  • Check air filter
  • Inspect belts and hoses
  • Test battery
  • Check fluid levels
  • Coolant flushes
  • Grease chassis components

Customer Reviews


"I had an excellent experience at Southwest Auto. It’s been very hard to find a mechanic to work on my old Saab, so I found Jon. He did a thorough diagnostic, emailed me the results, and had me approve the work. It took some time to source parts, but Jon Came through. My car not only made the 200+ mile ride home, it’s running great. Very thankful his shop was recommended."

David Dalrymple

"I highly recommend Southwest auto for your vehicle repair. Recently, they handled my transmission leak on a 3500 Mercedes Diesel Sprinter Van/Camper. They were efficient, fairly priced, and Cory at the front desk was very communicative during the repair process. They handled the warrantee coverage for me and got me back on the road quickly. I cannot say enough how pleased I was with the service they provided."

Nancy Helfinstine

Automotive Repair Customer Service | Southwest Auto

Why Choose Us for Diesel Repair in Dallas TX?


Estimates | Southwest Auto

Free Detailed Estimates

Factory Equipment | Southwest Auto

Factory Equipment

Loaner Cars | Southwest Auto

Loaner Cars

Available

Warranty Shield | Southwest Auto

2-Year/24k-Mile

Warranty

Locally Owned and Operated | Southwest Auto

Locally Owned & Operated

Experience | Southwest Auto

35+ Years of Experience

Coffee and Water | Southwest Auto

Wi-Fi, Coffee, Water & TV

Comfortable Waiting Area | Southwest Auto

Comfortable Waiting Area

Our Location


We're conveniently located at 11353 Mathis Ave Dallas TX 75229. Give us a call to schedule an appointment or conveniently book your appointment online.

Phone Number:  (972) 797-9170

Hours: Mon - Fri 8:00 AM - 5:00 PM

Closed: Saturday & Sunday

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Frequently Asked Questions


  • What are the average costs for diesel repair services in Dallas, TX?

    Diesel repair costs in Dallas vary based on the issue and vehicle type. Our basic services like oil changes run $100-$300. More complex engine repairs can cost $1,000-$5,000 or more.

  • What types of diesel vehicles do you service?

    Our auto repair shop specializes in servicing a wide range of diesel vehicles, including light-duty trucks, heavy-duty trucks, SUVs, and commercial vehicles. Whether you have a Ford, Chevrolet, Dodge, or other brands with diesel engines, we have the expertise to handle your repair needs.

  • How often should I have my diesel engine serviced?

    You want to have your diesel engine serviced every 5,000 to 10,000 miles, depending on your vehicle manufacturer’s guidelines and your driving habits. Regular maintenance, including oil changes and fuel filter replacements, will help your diesel operate efficiently and last longer.

  • What is a Diesel Particulate Filter, and why is it important for my diesel vehicle?

    A Diesel Particulate Filter (DPF) is a component in modern diesel vehicles that helps reduce harmful emissions for customers. It captures and stores soot and particulate matter produced during the combustion process, preventing them from being released into the atmosphere.

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