Diesel mechanic performing electrical repairs on semi trailer in Austin, Texas
Truck repair services

Truck Diagnostics & Electrical Repair Services in Texas

Providing Service in Houston, Dallas, San Antonio, Austin & More!

In the modern world of fleet, heavy-duty, medium-duty, and light-duty trucks, advanced diagnostic capabilities and reliable electrical systems are essential for optimal performance and reliability. At OTR Fleet Service, we provide comprehensive diagnostic and electrical repairs and services.

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Advanced Diagnostics for Trucks

At OTR Fleet Service, we understand the significance of accurate diagnostics in identifying and resolving issues with trucks. Utilizing state-of-the-art diagnostic scanners and software, we perform thorough scans and tests to identify trouble codes, evaluate engine performance, and analyze various systems, such as the engine control modules (ECM), transmission control modules (TCM), and anti-lock braking systems (ABS). Our experienced technicians interpret the diagnostic data and provide precise solutions to address any detected issues effectively.

Electrical System Repair for Trucks

Modern trucks heavily rely on complex electrical systems, encompassing various components such as lighting, sensors, ignition systems, and onboard computers. A properly functioning electrical system is crucial for overall performance and safety. Whether it's a malfunctioning wiring harness, faulty sensors, or a failing alternator, our skilled technicians have the technical expertise to deliver efficient and effective electrical system repairs. We also offer electrical system upgrades and installations to enhance the functionality and reliability of your truck.

Preventive Electrical System Maintenance

Preventive maintenance plays a vital role in avoiding unexpected electrical system failures and minimizing downtime for your trucks. Our comprehensive maintenance packages include:

  • Inspecting and testing electrical components
  • Checking battery health and charging systems
  • Evaluating wiring integrity
  • Conducting system diagnostics

Benefits of Choosing OTR Fleet Service

When you choose OTR Fleet Service for your diagnostic and electrical service needs, you can expect:

  • Advanced Diagnostic Capabilities: Our shop is equipped with cutting-edge diagnostic equipment and software, allowing us to diagnose and resolve issues accurately.
  • Skilled Technicians: Our experienced technicians possess in-depth knowledge of complex electrical systems, ensuring accurate diagnostics and effective repairs.
  • Quality Repairs and Parts: We utilize genuine parts and adhere to industry standards to deliver high-quality repairs and replacements.
  • Timely Service: We understand the importance of minimizing downtime. Our dedicated team is committed to providing prompt diagnostics, repairs, and maintenance to keep your trucks operating efficiently.

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Trust OTR Fleet Service for all your diagnostic and electrical service needs. Contact us today to schedule an appointment or learn more about our comprehensive services for fleet, heavy-duty, medium-duty, and light-duty trucks.

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Our Heavy-Duty Truck Repair Services

With service locations throughout Texas in Houston, Dallas, San Antonio, & Austin, OTR Fleet Service delivers industry-leading heavy-duty truck repair & fleet maintenance services from experienced diesel mechanics. Whether you require basic truck repair to complex diesel engine maintenance, we have the capability to get your vehicle back on the road and running smoothly.

Diesel mechanic performing axle repairs on semi-truck in Houston, TX

Axle Repair

We specialize in providing axle repair and maintenance services for heavy equipment and heavy, medium, and light-duty trucks.

Diesel mechanic performing brake repairs on heavy-duty truck in Houston, Texas

Brake Repair

Our commitment to excellence and attention to detail, you can trust our brake repair services to deliver outstanding results.

Diesel mechanic performing coolant system repair services in San Antonio, Texas

Coolant System Repair

We recognize the critical role of a properly functioning coolant system in fleets, heavy-duty, medium-duty, and light-duty trucks.

Diesel mechanic performing ECM tuning services on semi truck in Dallas, Texas

Performance ECM Tuning

At OTR Fleet Service, we excel in performance ECM tuning of fleet, heavy-duty, medium-duty, and light-duty trucks.

Diesel mechanic performing electrical repairs on semi trailer in Austin, Texas

Diagnostics & Electrical Repair

At OTR Fleet Service, we provide comprehensive diagnostic and electrical repairs, to achieve optimal performance and reliability.

Diesel mechanic performing driveline repairs on semi truck in Katy, Texas

Driveline Repair

Our driveline services will ensure optimal performance and reliability for your fleet, heavy-duty, medium-duty, and light-duty trucks.

Mechanic performing EGR & DPF cleaning in Dallas, Texas

EGR & DPF

At OTR Fleet Service, we specialize in EGR and DPF repair services for fleets and heavy-duty, medium-duty, and light-duty trucks.

Mechanic performing diesel engine repairs on semi trucks in Texas

Engine Repair, Rebuild & Conversion

Our expertise and top-quality services will ensure your trucks run at their best.

Diesel mechanic performing express lube service on semi truck fleet in Texas

Express Lube

We understand the importance of keeping your fleet, heavy-duty, medium-duty, and light-duty trucks running smoothly and efficiently.

Diesel mechanic performing exhaust system repairs for semi trucks in Texas

Exhaust System Repair

We are your go-to exhaust system repair and maintenance provider for fleet, heavy-duty, medium-duty, and light-duty trucks.

Diesel mechanic performing AC repairs on semi truck in Texas

HVAC System Repair

At OTR Fleet Service, our specialization lies in delivering exceptional on-the-go HVAC system repair and maintenance services.

Diesel mechanic performing oil & fluid services on semi truck fleet in Texas

Oil & Fluid

We are proud to offer professional oil and fluid services meticulously tailored to meet the unique needs of your vehicles.

Diesel mechanic performing suspension repairs on semi truck in Austin, Texas

Suspension Repair

The suspension system is crucial in ensuring a smooth ride, maintaining proper tire contact with the road, and enhancing stability.

Diesel mechanic performing wheel repairs on semi truck in Texas

Wheel Repair

At OTR Fleet Service, out skilled technicians will keep your wheels in optimal condition for enhanced performance and safety on the road.

Diesel mechanic performing transmission & clutch repairs in Dallas, Texas

Transmission & Clutch Repair

Our comprehensive range of transmission and clutch services is specifically designed to ensure unparalleled reliability.

Diesel mechanic performing truck & trailer alignment services in Texas

Alignment

OTR Fleet Service takes pride in being the premier choice for truck and trailer alignment services.

Testimonials

customer insights

"Highly recommend OTR Dallas for inspection and repair. Michele was awesome! She’s professional and helped us a lot. Great communication. Reasonable price for repairs. Thanks Michele for all the help."  //  Mike Alhoutari

Alternative Distributors

5 stars

"OTR has been a great help to us in both the Dallas and Houston areas. The staff is always very helpful and informative. They provide great customer service, their mechanics, both mobile and in house, are very through and informative."

rodney geibe

5 Stars

"I have taken my trailer into this shop for years. Outstanding service. Everyone at the shop goes out of there way to get you back on the road as quick as possible. If you need work done on your truck or trailer, this is the place to go."

Eston Hammer

5 Stars

"Amazing place!  
Super friendly and fast staff. Rudy Ray was an amazing mechanic! Not only did he get the job finished the same day, he kept me in the loop the entire time. Shout out to him and the great staff at  OTR!"

Angel Cardiel

5 Stars

"Andrea and the rest of the crew were all incredibly punctual and effective. The staff was very kind and listened to my concerns and even gave me a complimentary multi point inspection. The repair was successful as well. Will be using them moving forward."

Caleb Thornburg

5 Stars

"Mike P came out in the rain and thunderstorm to help me get my piggy back back rolling! I really appreciate all his patience becasue he didnt have the key i did in the truck! He waited! I appreciate him and his patience! Thanks"

Caleb Thornburg

5 Stars

"I just want to thank Mario for his extreme professionalism. He made sure that the shock was well replaced and explained the process to my dad well. We usually do not write reviews but my dad could not stop talking about how well the interaction was and how well the job got done. Thank you Mario for this great experience."

Kabe Brown

5 Stars

"They were quick to respond to my needs when other companies were unable. I'd like to give a quick shout out to my man Edward from otr fleet services... that main drive belt 😳 was a pain but you stuck at it. Top notch work."

Deric Jean

5 Stars

"Working for a nationwide trucking company, having a company that we can rely on to keep our equipment running at it full potential is the number 1 reason we use OTR Fleet. The staff at Houston is fast, caring, and available."

Chris Burlison

5 Stars

"I operate a large fleet of trailers and OTR does an awesome job of maintaining my fleet. Block is the mechanic that keeps everything running and operating. He is always ready willing to do what it takes to ensure we do not miss a beat in our fast paced business. Thank you OTR and especially Block! Appreciate all you do for us!"

Semaj Johnson

5 Stars

"Just got serviced by Jacob Scott, very efficient in his work, I was told the eta was 3-4hrs, he was here in an hr and he’s very friendly 🤙🏾"

Ramon Espino

5 Stars

"I want to give Moses a big shout out!! He keeps my company’s fleet up to date and running!! Always going out of his way to make sure we are always taken care of! Thank you Moses for continuing to provide the up most excellent customer service and getting us out of some 911 maintenance!"

Azul Zamarripa

5 Stars

"Awesome team ! Professional helpful and knowledgeable, guys were willing me to help me out with no hesitation. If you’re in San Antonio or the area and need assistance don’t even bother looking else where ! Special thanks to Larry Hector and Delton. Great guys and great service."