Diesel Engine Repair in Jonestown, PA
Complete Diesel Engine Repair Solutions
Engine Diagnostics
Accurate diesel engine diagnostics are essential for identifying mechanical problems before they lead to major failures or costly breakdowns. Our technicians use advanced diagnostic equipment to inspect fuel systems, engine performance, emissions components, sensors, and electronic controls affecting heavy-duty trucks. Proper diagnostics help improve efficiency and reduce unnecessary repairs.
Fuel System Repair
Diesel fuel system problems can reduce engine power, fuel efficiency, and overall truck reliability. Blatt & Tillett provides fuel injector repairs, fuel pump diagnostics, fuel line inspections, and complete fuel system services for semi trucks and commercial fleet vehicles. Proper fuel delivery is critical for dependable engine performance.
Turbocharger Repair
Turbochargers help diesel engines maintain power, performance, and fuel efficiency under demanding commercial driving conditions. Our technicians inspect and repair turbocharger systems affected by leaks, pressure loss, overheating, or mechanical wear. Proper turbocharger repairs help restore engine performance and reduce operational issues.
Cooling System Repair
Overheating is one of the most common causes of diesel engine damage in heavy-duty trucks. We provide cooling system diagnostics and repairs for radiators, water pumps, hoses, thermostats, and coolant circulation systems. Maintaining proper engine temperatures helps improve reliability and prevent serious engine failures.
Emissions System Repair
Modern diesel engines rely on emissions systems to maintain compliance and efficient operation. Blatt & Tillett repairs DPF systems, DEF systems, EGR valves, sensors, and related emissions components affecting heavy-duty trucks. Proper emissions system maintenance helps improve reliability and regulatory compliance.
Preventative Engine Maintenance
Routine diesel engine maintenance helps reduce unexpected breakdowns and extend the lifespan of heavy-duty commercial trucks. Preventative maintenance services include inspections, fluid checks, filter replacements, diagnostics, and scheduled servicing designed to improve reliability and minimize downtime for commercial fleets and owner-operators.
Why Choose Blatt & Tillett
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Browse real examples of our semi truck repair, heavy-duty towing, roadside assistance, fleet maintenance, and commercial truck services throughout Jonestown, PA and surrounding areas.
24/7 Emergency Roadside Assistance
Blatt & Tillett provides fast emergency roadside assistance for semi trucks and commercial vehicles throughout Jonestown, PA and nearby service areas. Our mobile technicians respond quickly to breakdowns, mechanical failures, electrical issues, tire problems, and other roadside emergencies to help drivers return safely to the road.
Serving Central Pennsylvania
- Lebanon
- Hershey
- Myerstown
- Palmyra
- Elizabethtown
- Middletown
- Annville
- Lititz
- Mount Joy
- Harrisburg
- Mechanicsburg
- Carlisle
- Camp Hill
- Lower Paxton
- Enola
Frequently Asked Questions
Which diesel engine brands do you repair?
Our technicians service Cummins, Caterpillar, Detroit Diesel, PACCAR, Volvo, Mack, and International diesel engines, covering everything from minor repairs to full in-frame and out-of-frame overhauls at our Jonestown, PA shop.
How do I know if my diesel engine needs repair or just maintenance?
Common warning signs include excessive blue or black exhaust smoke, loss of power, hard starting, knocking noises, coolant or oil leaks, and active fault codes. Bring it in for a computer diagnostic at 717-865-2388 and we will confirm whether it needs a repair or routine service.
Do you do in-frame and out-of-frame engine overhauls?
Yes. We perform both in-frame overhauls done with the engine still in the truck and complete out-of-frame rebuilds when the block needs to be removed, using OEM and quality aftermarket parts.
Can you diagnose engine fault codes and check-engine lights?
Yes. We use professional diagnostic software to read ECM and ECU fault codes, pinpoint the root cause, and clear the codes after the repair so your check-engine light does not return for the same issue.
Do you offer mobile diesel engine repair if my truck breaks down?
Yes. Our mobile mechanics are dispatched 24/7 for diesel breakdowns along I-81, I-78, I-76, I-83, Route 22, and Route 72 throughout Central Pennsylvania. Call 717-865-2388 for emergency road service.
How long does a diesel engine repair take?
Minor repairs are often completed the same day, while major overhauls take longer depending on parts availability and the extent of the work. We give you a clear time estimate after diagnosing the engine.
Do you work on DPF, DEF, and emissions systems?
Yes. We service diesel particulate filters (DPF), diesel exhaust fluid (DEF) systems, EGR components, and aftertreatment faults, including forced regens and DPF cleaning.
What payment methods do you accept for fleet repairs?
We accept EFS, T-Chek, ComData, WEX, Fleet One, all major credit cards, and cash, making it easy for owner-operators and fleet managers to keep trucks moving.
Trusted by Commercial Drivers Across Central Pennsylvania
Semi Truck Brands We Service
