When your diesel engine shows signs of serious wear — excessive smoke, low oil pressure, or constant breakdowns — it may be time for a professional engine overhaul or rebuild. At On Time Truck Repair, we provide complete in-shop engine overhauls for commercial diesel trucks, restoring your engine’s performance, reliability, and lifespan. Whether it’s a minor in-frame refresh or a full out-of-frame rebuild, our expert technicians are here to help you avoid replacement costs and extend the life of your diesel truck.
We specialize in engine rebuilds for all major brands including Cummins, Caterpillar, Detroit Diesel, Volvo, Mack, and PACCAR. With over 60 years of combined experience and access to OEM and high-quality aftermarket parts, we deliver rebuilds that meet or exceed original manufacturer standards.
Why Choose On Time Truck Repair for Engine Overhauls
An engine rebuild isn’t just a repair — it’s a second life for your diesel truck. At On Time Truck Repair, our diesel specialists perform complete diagnostics to determine the health of your engine before recommending a rebuild. When it’s time, we disassemble, inspect, clean, and replace worn internal components — restoring power, fuel efficiency, and emissions performance. Whether you’re a fleet manager or an independent owner-operator, we help you make the right long-term investment for your rig.
Frequently Asked Questions
1. What are signs I might need an engine rebuild?
Loss of power, frequent overheating, excessive oil or coolant consumption, knocking noises, or consistent breakdowns are key indicators.
2. How long does an engine overhaul take?
Depending on engine size and damage, most overhauls take 5 to 10 business days. We'll give you a timeline after a full diagnostic.
3. Is an overhaul better than engine replacement?
In many cases, yes — especially for well-maintained diesel trucks. A rebuild is more cost-effective and preserves your existing engine block.
4. Do you offer rebuilds for all diesel brands?
Yes. We specialize in Cummins, Detroit, Mack, Volvo, PACCAR, and Caterpillar engines — both on-highway and vocational.
5. Can an overhaul be included in a fleet maintenance plan?
Absolutely. We track engine health across your fleet and plan overhauls proactively to avoid costly downtime.
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.



