General Diesel Repair in Parkersburg, WV

Diesel Engine Repair in Parkersburg, WV

Diesel engines are built for power and endurance, but even the toughest machines break down over time. At On The Go Fleet Services, our expert mechanics specialize in diesel engine repair in Parkersburg, WV, helping you keep your equipment and fleet running reliably.

Here’s what we diagnose and repair:

• Fuel system issues, including clogged filters or failing fuel injection systems
• Faulty electronic control modules (ECMs) that disrupt engine timing and power
• Warning lights triggered by engine diagnostics, identifying hidden problems before they escalate
• Overheating, loss of power, or coolant leaks caused by blown cylinder head gaskets
• Loud knocking sounds, often indicating worn bearings or rod knock
• Complete truck engine overhauls for aging or high-mileage engines
• Exhaust leaks and emissions system problems affecting performance and compliance

Whether it’s a single truck or a full fleet, our certified technicians are equipped with the latest diagnostic tools and hands-on experience to handle it all.

What Makes Us Different

What sets On The Go Fleet Services apart from other shops? It starts with how we treat you.

• We offer both in-shop repairs and mobile diesel engine repair, so you’re never stuck or forced to tow.
• Our team is known for clear communication, honest pricing, and zero surprise charges.
• We proudly serve light-duty, medium-duty, heavy-duty trucks, trailers, and equipment—whatever you run, we can fix it.
• Fast, reliable service that minimizes your downtime and gets you back to work quickly.
• Our technicians are trained to repair all major diesel platforms and perform in-depth diagnostics to prevent future breakdowns.

From preventive maintenance to full rebuilds, we deliver trustworthy, transparent service you can count on.

Contact Us About Truck Engine Repair Now: Call 304-916-7152!

If your diesel engine is acting up, don’t wait until it fails. Call 304-916-7152 now to book your truck engine repair. Our mobile units and in-shop team are ready to get your vehicle back on the road.

FAQs

What Areas Do You Serve For Heavy-Duty Diesel Repair?

We are based at 2148 DuPont Rd. Parkersburg, WV 26101, near I-77 and US Highway, and proudly serve Marietta, WV; Ravenswood, WV; Athens, WV; Pomeroy, WV; McConnelsville, WV; Beverly, WV; Elizabeth, WV; and Caldwell, WV.

How Do You Know If Your ECM Is Bad In A Semi Truck?

Common signs include hard starts, poor fuel economy, erratic idling, or engine codes. A bad ECM may also cause shifting issues or unexpected power loss. Diagnosis with a scan tool is required for confirmation.

What Does A Truck Engine Overhaul Include?

An engine overhaul typically includes replacing worn components like pistons, rings, bearings, and gaskets. The goal is to restore compression, oil pressure, and power, extending the life of your diesel engine.

How Can I Get Heavy-Duty Diesel Repair?

Getting heavy-duty diesel repair is simple—just call 304-916-7152 to schedule service. We offer both mobile and in-shop repairs, so help is never far away.