Heavy-Duty Truck Repairs

Truck Engine Repair & Rebuild Services in San Antonio & Austin, TX

Discover expert engine repair and rebuild solutions for heavy-duty trucks, medium-duty trucks, fleets, heavy equipment, buses, and trailers. At Austin Fleet Services, our team is here to ensure reliable performance for your vehicle's engines. Your fleet deserves the best!

Diesel mechanic performing diesel engine repair services on semi truck in Austin, TX

Engine Repairs and Services

At Austin Fleet Services, we offer engine repairs and maintenance to keep your heavy-duty vehicles running smoothly. Here are some of the engine services we provide:

  • Engine Diagnostics: We utilize advanced diagnostic tools to identify engine issues accurately, including problems with fuel delivery, ignition, and compression.
  • Engine Tune-Up: Our expert technicians perform engine tune-ups to optimize performance, including spark plug replacement, fuel system cleaning, and ignition timing adjustment.
  • Cylinder Head Repair: We offer cylinder head repair services to address issues such as cracked or warped cylinder heads, damaged valves, and worn valve seats.
  • Engine Rebuild: In cases of severe engine damage or wear, we provide engine rebuild services to restore your engine to like-new condition, including machining, replacement of worn components, and assembly.

Reach Out Today!

Ready to schedule engine repairs or maintenance for your heavy-duty trucks? Contact us today at (737) 256-7770 to speak with our experienced team and ensure your fleet stays on the road with minimal downtime. Our staff is here to assist you with any questions or concerns you may have.

Areas We Serve

In addition to our locations in San Antonio and Austin, we offer services within a 50-mile radius of each shop, including the following areas in Texas: Pflugerville, San Marcos, Cedar Park, Round Rock, Georgetown, Elgin, New Braunfels, Schertz, Seguin, Devine, Pleasanton, Floresville, and many more. We offer expert mobile repairs and roadside assistance for those located in these areas.


How long do diesel engines usually last?

Diesel engines are known for their durability and can last anywhere from 300,000 to 1,000,000 miles or more with proper maintenance. Factors such as regular oil changes, clean fuel, and proper engine tuning can significantly extend engine lifespan, ensuring reliable performance for years to come.

What are common signs of engine issues?

Common signs of engine problems include excessive exhaust smoke, loss of power, engine knocking or pinging noises, rough idling, and abnormal engine vibrations. If you notice any of these symptoms, it's essential to have your engine inspected by a qualified technician to prevent further damage and ensure optimal performance.

How can I get in touch?

You can reach Austin Fleet Services by phone at (737) 256-7770. Our friendly and knowledgeable team is available to assist you with scheduling engine repairs or answering any questions you may have about our services. We're dedicated to providing exceptional customer service and ensuring your complete satisfaction.

Why Choose Austin Fleet Services?

We can come to you!
Our Patented Service Vehicles are specially designed and equipped to perform 85% of all vehicle maintenance and repair requirements on site.


Professional Light to Heavy-Duty Truck Repair Services

From axle repair to exhaust systems, diesel engines to transmissions, our technicians have the expertise to handle every repair job with precision and efficiency. Get in touch today for service in-shop in San Antonio & Austin, Texas. Or via mobile service in the surrounding areas.

Don't Take our word for it —
Read our reviews

"William is a awesome guy. He did a great job. Called about the tandem axle not sliding and helps me fixed some other little issue. I definitely recommend austin fleet services"

Jackson Epalle

"These guys are great, had an emergency with a DEF pump on a black Friday, only shop that picked up the phone, took my driver in immediately and didn't give me the runaround like most do now. I asked not to diagnose anything and just change the pump. Truck back on the road in 3-4 hours and saved us at least 3 days waiting for another shop to open. Definitely coming back here next time our  trucks are in the area!"

Vlad Supron

"Outstanding experience with AFS and George, their knowledgeable mechanic who replaced my valve cover gasket. My vehicle is running smoother than ever. Thank you AFS!"

Bianca Martinez

Contact Us

Get in touch with Austin Fleet Services today to schedule service in-shop in San Antonio or Austin/Pflugerville, or via mobile service in the surrounding areas.