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Certified Transmission Specialist

Diesel Mechanic

Diesel engines require the specialized knowledge and years of experience that only a diesel mechanic can offer. And our diesel mechanics are among the best that the industry has to offer. We are Thomas J. Automotive LLC—your first choice for diesel repair services for cars, trucks, and heavy machinery.

How did we become the leading diesel mechanic shop in the region? Top-tier service standards to start. Then there’s our famous fast turnaround times, renowned customer service, and affordable rates to top it all off. Around here, it’s just good honest work and proven results.

Why settle for second-best? Book an appointment today.

Diesel Engine Diagnostics and Inspections

We begin every service visit with a series of diagnostic tests. Combining both computer-driven diagnostic technology and a deep understanding of the engineering principles behind diesel engines, our mechanics will create a report that summarizes any malfunctions, damages, and inefficiencies that may be affecting your vehicle’s performance.

The accuracy of our engine diagnostics allows us to create reliable service estimates. That way, you know how much you’re going to pay before the work begins. No surprises. And if you have any questions or concerns, we’ll be happy to answer them in full detail. We’re all about turning efficiency into amazing customer experiences.

Diesel Engine Repair Services

As one of the leading local diesel mechanic companies, we offer a complete range of repair services. No matter what your issue, we’ll diagnose and repair it. To help speed things up, we maintain an inventory of replacement parts from the leading diesel companies. And if we don’t have the part in stock? No problem. Our long-term business relations with suppliers means we can get the right part shipped express, right to the shop.

Although the following is not comprehensive, these are the most common issues that our auto diesel mechanics deal with:

  • Excessive lubrication
  • Storage battery malfunction
  • Loose throttle linkages
  • Fuel delivery problems
  • Faulty injector
  • EGR valve issue
  • Water contamination
  • Oxidized oil
  • High compression ratio

Diesel Engine Maintenance and Tune-Ups

Diesel engines are composed of hundreds of precision-designed parts. And although they are built to last—over-built to last, perhaps—the extremely high-pressure cylinder compression means that there’s absolutely no room for error. Contaminants like dust and water can cause serious inefficiencies. And if the engine is not properly maintained, it may end up breaking down, leaving you stranded on the size of the road or unable to continue working for the day.

To avoid this, it’s crucial to have your diesel engine maintained by a certified diesel engine mechanic like us. Regular maintenance will mean extending the lifespan of your diesel engine and ensuring that repairs and overhauls are unnecessary.

Call us today to learn about our scheduled engine maintenance and tune-up plans.

Book an Appointment with the Diesel Truck Repair Specialists

At Thomas J. Automotive LLC, our diesel mechanics are ready when you are! We can service diesel trucks, cars, and even heavy machinery.

For repairs, overhauls, maintenance checks, and tune-ups on diesel engines, you can rest assured that your vehicle will be in good hands. Call us today at (240) 892-2745 to schedule a service appointment.

Contact us now to get a free estimate
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