Your air brake system is the foundation of your diesel truck’s safety. At On Time Truck Repair, we specialize in air brake system repair and maintenance for heavy-duty diesel trucks, trailers, and commercial vehicles. Whether you're hearing air leaks, experiencing slow brake response, or failing DOT inspections, our certified mechanics are trained to find the issue fast — and fix it right.
We work on all major brands, including Freightliner, Mack, Kenworth, Volvo, and Peterbilt, and provide both in-shop and mobile diesel truck repair services throughout Central Florida. From air compressor diagnostics to valve replacement and line repairs, we deliver durable results that keep your diesel truck safe, compliant, and road-ready.
Why Choose On Time Truck Repair for Air Brake Services
Air brake systems require specialized knowledge — and we bring over 60 years of combined diesel repair experience to every job. Our team is trained to diagnose and repair air brake components with precision. We also include air brake inspections in our fleet maintenance programs to help prevent roadside failures and costly downtime.
Frequently Asked Questions
1. What are signs of air brake problems?
Hissing sounds, slow braking, air pressure loss, uneven braking, or brake system warning lights are key indicators.
2. Can you service air brakes on-site?
Yes! Our mobile diesel truck repair team can handle many air brake system diagnostics and repairs at your location.
3. How often should air brakes be inspected?
Every 10,000–15,000 miles or as part of your regular fleet servicing schedule. Frequent inspections are critical to prevent failure.
4. Are your repairs DOT-compliant?
Absolutely. All of our air brake services meet or exceed DOT safety standards, ensuring your vehicle passes inspection.
5. Do you service air brakes for trailers as well?
Yes. We handle full air brake systems for both diesel trucks and trailers, including ABS-integrated systems.
Our Service Area - Serving All Neighboring Areas
We proudly serve Sanford, FL and all surrounding areas including Lake Mary, Deltona, DeLand, Altamonte Springs, Orlando, Winter Springs, Apopka, Longwood, and more.
Whether you need reliable diesel truck repair or fast RV repair near Sanford, FL, our team is ready to get you back on the road.
On Time Truck Repair Shop is a trusted diesel truck repair shop in Sanford, FL, specializing in diesel truck repair, fleet maintenance, and roadside assistance. Family-owned since 1995, we proudly serve diesel drivers and fleet operators with fast, reliable service backed by decades of experience.



