Our dedicated team delivers top-notch repairs and maintenance for a wide range of vehicles, including tree service equipment, fleet trucks, heavy-duty trucks, medium-duty trucks, light-duty trucks, and select automobiles.

Comprehensive Services for Your Diesel Trucks
At DeMarco Equipment Repair, we offer a wide array of general services to cater to the specific needs of your diesel trucks. Our experienced technicians are equipped with advanced diagnostic tools and possess extensive knowledge in the following areas:
- Engine Diagnostics and Repair: We meticulously diagnose and address issues within the fuel injection, ignition, and emission control systems, ensuring optimal engine performance.
- Fuel System Maintenance: Our team specializes in cleaning and replacing fuel injectors, replacing fuel filters, and repairing fuel pumps, ensuring an efficient fuel system.
- Coolant System Maintenance: We provide radiator flushes, thermostat replacements, and repair or replacement of water pumps, hoses, and fan clutches, keeping your coolant system in excellent condition.
- Exhaust System Repair: Count on us for accurate diagnosis and repair of diesel particulate filters (DPF), exhaust gas recirculation (EGR) valves, and other components within your exhaust system.
- Transmission and Drivetrain Service: We offer comprehensive transmission fluid changes, clutch replacements, and repair or replacement of differentials, driveshafts, and axles to keep your truck's drivetrain running smoothly.
- HVAC Service: Our team provides a range of HVAC services, including system installations, repairs, and maintenance, ensuring a comfortable and controlled environment within your truck's cabin.
- Tire Repair and Service: We handle all aspects of tire maintenance, from installations and repairs to rotations and replacements, ensuring optimal tire performance and safety.
Signs You Need General Diesel Truck Service
Changes in performance, drivability, or operating condition can signal that your diesel truck needs professional attention. Diagnosing these problems early can help prevent an unexpected breakdown from taking the truck out of service.
- Reduced Engine Power
- Hard Starting
- Excessive Smoke
- Warning Lights
- Unusual Vibrations
- Fluid Leaks
- Poor Fuel Economy
The Importance of Regular Maintenance
Regular maintenance is crucial for the longevity and optimal performance of your diesel trucks. By engaging in routine maintenance, you can prevent premature wear and tear on vital components, extend the engine's lifespan, and enhance fuel efficiency. Additionally, proper maintenance minimizes downtime by identifying and addressing potential issues before they escalate into costly repairs or unexpected breakdowns. It also contributes to a cleaner environment by reducing emissions from well-maintained diesel engines.
Contact Us
For exceptional diesel truck services in Phoenixville, PA, trust the experts at DeMarco Equipment Repair. Our experienced team is committed to delivering quality service and ensuring customer satisfaction. Contact us today to learn more about our services, hourly mobile rates, or to schedule an appointment.
FAQs
How do you get to DeMarco Equipment Repair in Phoenixville?
Commercial drivers can find DeMarco Equipment Repair at 800 Township Line Rd, Phoenixville, PA 19460. The shop is accessible for truck owners and fleet managers needing general diesel truck services in Phoenixville. Township Line Road provides local access to the shop for drivers traveling through the surrounding area.
Near DeMarco Equipment Repair, the Schuylkill River Trail’s Cromby Trailhead is a recognizable landmark close to the location. Drivers can also watch for Reservoir Park Disc Golf Course nearby as they approach the shop.
What areas do you serve for diesel truck repair?
We provide diesel truck repair in Phoenixville, King of Prussia, Pottstown, West Chester, Exton, Downingtown, Norristown, Collegeville, Lansdale, Coatesville, Reading, Philadelphia, Allentown, Bethlehem, Doylestown, Quakertown, Wilmington, DE, Newark, DE, Camden, NJ, and Cherry Hill, NJ. Our team also serves customers throughout the surrounding areas within our 50-mile service radius.
What are common signs that a diesel truck needs professional repairs?
A few common symptoms include loss of power, excessive exhaust smoke, rough idling, unusual engine noises, fluid leaks, and declining fuel efficiency. Having these problems diagnosed early can help prevent additional component damage, unexpected breakdowns, and more expensive diesel truck repairs.
What can cause excessive smoke from a diesel truck?
Excessive exhaust smoke may be related to injector problems, improper fuel combustion, turbocharger issues, restricted airflow, or internal engine wear. The smoke's color and operating conditions can provide useful clues, but proper diagnostics are necessary to determine the cause and appropriate repair.
Why should unusual diesel engine noises be inspected?
Knocking, ticking, grinding, or other unusual engine noises can indicate problems with injectors, bearings, belts, pulleys, or internal engine components. Ignoring these sounds may allow a minor problem to become a serious failure, so early inspection can help protect the engine and reduce repair costs.
Our Heavy-Duty DIesel MEchanic Services
DeMarco Equipment Repair provides a wide range of professional diesel mechanic services from our shop in Phoenixville, PA. We work on all sorts of heavy-duty trucks and equipment, from semi-trucks and trailers, to tree service equipment, commercial fleet vehicles, and agricultural equipment. We also provide mobile services within a 50 mile radius, including emergency roadside assistance and mobile truck & equipment repairs.










