What types of diesel engines do you repair?

We work on a wide range of diesel engines for trucks, tractors, heavy equipment, work vehicles, and other diesel-powered machinery. At 704 Diesel & Welding Services, we handle many common engine issues, from hard starts and poor performance to fuel system problems, overheating, and no-start conditions. If you are not sure whether we can work on your engine, give us a call. We will tell you straight.

Do you offer mobile diesel engine repair, or do I need to bring it to your shop?

We do both. We provide mobile diesel repair for customers within about 50 miles of Marshville, NC, including much of the Charlotte area and nearby counties in North and South Carolina. If your truck or equipment is down on a job site, at your property, or on the road, we can often come to you. We also offer in-shop diesel engine repair when the job needs more time, tools, or space.

How do I know if my diesel engine needs repair right away?

Some of the biggest warning signs are loss of power, hard starting, excessive smoke, knocking, overheating, fluid leaks, rough running, or warning lights. If your engine is getting worse, do not wait. Small diesel engine problems can turn into major repairs fast. We can inspect the issue, find the cause, and help you avoid more downtime and higher repair costs.

How long does diesel engine repair usually take?

It depends on the problem, the parts needed, and whether the repair is done on-site or in our shop. Some diesel diagnostics and repairs can be handled quickly, while major engine issues may take longer. We do our best to diagnose the problem fast, explain what we find, and give you a realistic timeline. Our goal is to get your equipment or truck back to work as soon as possible without cutting corners.

Are your diesel repair services honest and fairly priced?

Yes. We built 704 Diesel & Welding Services on honest work, clear communication, and dependable service. Matt Harris started the company in 2022 to give customers a reliable option for real diesel repair help without the runaround. We will explain the issue in simple terms, go over the repair plan, and answer your questions so you can make a confident decision.

Why should I call 704 Diesel & Welding Services for diesel engine repair?

When your diesel engine is down, you need someone who knows what they are doing and shows up ready to work. We offer hands-on diesel repair experience, mobile service, in-shop support, and service across Marshville, Charlotte, and surrounding areas. We focus on practical solutions that save you time and reduce downtime. If your diesel truck, equipment, or machinery needs attention, call 704 Diesel & Welding Services today to schedule service.

Diesel Engine Repair | 704 Diesel & Welding Services

At 704 Diesel & Welding Services, diesel engine repair is one of the core services we provide every day. We help owners, operators, contractors, farmers, and fleet managers keep their equipment running with dependable mobile and in-shop diesel repair. If your truck, heavy equipment, tractor, skid steer, generator, or work vehicle is losing power, hard to start, smoking, leaking, overheating, or not running at all, we can diagnose the problem and make the repair you need.

We know diesel problems cost you time and money. When an engine is down, work slows down with it. That is why we focus on clear diagnostics, honest recommendations, and repairs that solve the issue instead of masking it. Our goal is to get your diesel engine back to reliable working condition as quickly and correctly as possible.

What our diesel engine repair service covers

We work on a wide range of diesel engine issues, from basic drivability problems to more complex mechanical failures. Every repair starts with understanding the symptoms, inspecting the engine system, and identifying the root cause. Depending on the problem, our diesel repair service may include:

Engine diagnostics and troubleshooting
No-start and hard-start condition repair
Loss of power and poor performance diagnosis
Fuel system inspection and repair
Injector and fuel delivery issues
Turbocharger-related diagnosis and repair
Cooling system problems and overheating issues
Oil leaks, fuel leaks, and coolant leaks
Sensor, wiring, and electrical fault diagnosis
Battery, charging, and starting system checks
Belt, hose, and accessory replacement
Gasket and seal repairs
Engine component replacement
Preventive service recommendations to help avoid future breakdowns

Not every diesel engine problem looks serious at first. A rough idle, extra exhaust smoke, low fuel economy, slow cranking, or unusual engine noise can all point to a larger issue if left alone. We take the time to inspect the system carefully so you understand what is wrong and what it will take to fix it.

Common diesel engine problems we repair

Diesel engines are built for strength and long service life, but they still need proper maintenance and timely repairs. We regularly help customers with problems such as:

Engines that crank but will not start
Engines that start and stall
Black, white, or blue exhaust smoke
Knocking, ticking, or other abnormal engine noises
Overheating under load or at idle
Fuel contamination issues
Low compression symptoms
Excessive blow-by
Poor throttle response
Check engine lights and fault codes
Fuel pressure problems
Air intake restrictions
Cooling fan or thermostat issues
Oil consumption concerns

Many of these issues can come from more than one source. That is why proper diesel diagnostics matter. Replacing parts without testing can waste your money and still leave the real problem unsolved. We approach repairs with real-world experience and a practical process so you get answers you can trust.

Mobile and in-shop diesel repair options

We offer both mobile diesel engine repair and in-shop service based on what makes the most sense for the job. If your equipment is down on site, at the farm, on a job site, or at your location, our mobile service can save you the hassle of arranging transport. For repairs that require more time, deeper teardown, or shop equipment, we can handle the work in our shop as well.

Because we serve customers within a 50-mile radius of Marshville, NC, including much of the Charlotte area and nearby counties in North Carolina and South Carolina, we are able to support a wide range of local diesel repair needs. Whether you have one truck down or multiple pieces of equipment that need attention, we work to provide practical service that fits your schedule and your operation.

Equipment and vehicles we commonly work on

Diesel engine repair can apply to many types of equipment. We commonly service:

Diesel pickup trucks
Work trucks and service trucks
Trailers with diesel-powered equipment
Construction equipment
Excavators and skid steers
Farm equipment and tractors
Generators and industrial diesel units
Commercial vehicles and fleet equipment

If you are not sure whether your engine or machine falls within our service range, just reach out. We are happy to talk through the equipment you have, the symptoms you are seeing, and the best next step.

Our repair process

We believe customers deserve straight answers. When you call us for diesel engine repair, we start by learning what the engine is doing, when the issue started, and whether any recent changes or warning signs showed up before the failure. From there, we inspect, test, and diagnose the system to narrow down the cause. Once we know what is going on, we explain the problem in plain language and recommend the repair that makes the most sense.

Our repair approach is built around accuracy and value. We do not believe in guessing. We want you to understand the issue, the repair plan, and what to expect. That helps you make a confident decision and reduces the chance of repeat breakdowns caused by missed problems.

Why timely diesel engine repair matters

Waiting too long to repair a diesel engine can lead to larger failures, higher repair bills, and more downtime. A small coolant leak can turn into overheating. A fuel issue can damage injectors or leave you with a no-start condition. A minor oil leak can become a bigger engine problem if fluid levels drop too far. Fixing diesel issues early is usually the best way to protect your equipment and your budget.

For business owners and operators, dependable equipment is not just convenient. It is essential. Reliable diesel repair helps protect productivity, delivery schedules, job site timelines, and customer commitments. We understand that because many of our customers depend on their engines to make a living.

Why customers call 704 Diesel & Welding Services

704 Diesel & Welding Services was established in 2022 and is run by Matt Harris. We built this business to provide practical, dependable diesel repair and welding services for customers who need honest work and responsive service. We bring hands-on experience, mobile capability, and a strong work ethic to every job.

Customers call us because they want a company that shows up, communicates clearly, and takes pride in doing the job right. We work hard to be the diesel repair company people trust when they need help with equipment that cannot afford to stay down.

Schedule diesel engine repair today

If your diesel engine is giving you trouble, do not wait for the problem to get worse. Call 704 Diesel & Welding Services for professional diesel engine repair in Marshville, NC and throughout the surrounding Charlotte-area service region. We can help with diagnostics, troubleshooting, on-site service, and in-shop repairs for many types of diesel equipment and vehicles.

Contact us today to discuss the issue, ask questions, or schedule service. We are ready to help you get your diesel engine back up and running.

Fast Diesel Engine Repair