repairs

Mobile Truck Engine Repair, Rebuild, Overhaul & Conversion Services in Plaistow, NH & Surrounding Areas

Engine problems putting a halt to your operations? Whether it's a simple repair, a complete engine rebuild, or even a conversion project, we've got you covered!

Schedule Repair

How Long Does It Take To Rebuild a Truck Engine?

A complete truck engine rebuild can vary in time, but on average, it takes approximately 2 to 4 weeks. Although the actual duration depends on the extent of damage, the availability of parts, and the complexity of the engine. 

How Do You Know if a Diesel Engine Is Blown?

Watch out for telltale signs like loud or sputtering noises from the engine, possibly accompanied by exhaust clouds or vented fumes. Additionally, the presence of white smoke coming from the oil-fill tube or a valve cover is a clear indication of excessive blow-by. 

Diesel Engine Repair in Plaistow, NH

At Tri-State Diesel Repair, we specialize in a wide range of engine repairs for heavy-duty trucks. Here are some common types of engine repairs we expertly handle:

Fuel Injection System Service: Our skilled mechanics can diagnose and repair issues with your truck's fuel injection system, ensuring optimal performance and fuel efficiency.

Engine Sensors Replacement: Faulty engine sensors can lead to poor engine performance and reduced fuel economy. We can quickly diagnose and replace any malfunctioning sensors to restore your truck's performance.

Cooling System Repairs: Overheating is a common issue in heavy-duty engines, and our team is well-equipped to diagnose and fix cooling system problems such as leaks, radiator issues, and water pump failures.

Cylinder Head Gasket Replacement: If your truck's cylinder head gasket is damaged or worn out, it can lead to coolant leaks or compression issues. Our team can expertly replace the gasket and prevent any further damage to the engine.

ECM Diagnostics and Repair: The Electronic Control Module (ECM) plays a vital role in controlling various engine functions. Our advanced diagnostic tools can pinpoint ECM issues and allow us to efficiently repair or reprogram them.

Engine Re-sealing: Oil leaks are a common problem in heavy-duty engines, and our team can perform comprehensive re-sealing to prevent leaks and maintain proper oil levels.

Areas We Also Serve For Engine Repairs

We proudly bring our engine repair, rebuild and conversion service to within 25 miles of Plaistow, NH, including the following areas:

New Hampshire 

Central, NH; Southern, NH

Maine 

Southern, ME

Massachusetts

North Shore, MA; Merrimack Valley, MA

Schedule Repair
our repairs

Full-Service Mobile Truck Repair Shop

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Axle Repair

Our adept technicians possess the finesse and expertise to skillfully manage truck axle repairs, all while meticulously tending to even the minutest intricacies.

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Brake Repair

Tri-State Diesel Repair is your go-to for premium brake solutions that guarantee safety and performance. Don't compromise on the efficiency of your truck's braking system.

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Coolant System Repair

From coolant system maintenance to radiator repairs, we've got all your coolant system repairs covered. Trust the professionals who understand the ins and outs of heavy-duty vehicles.

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Performance ECM Tuning

We deliver cutting-edge Heavy-Duty Performance ECM Tuning service. Boost your truck's performance, increase fuel efficiency, and gain more horsepower and torque.

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Diagnostics & Electrical Repair

In the heart of Plaistow, NH, our team of adept technicians specializes in delivering exceptional heavy-duty electrical and diagnostic repairs tailored to trucks and fleets.

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Driveline Repair

Tri-State Repair, located in Plaistow, NH, stands ready to provide a solution with our all-encompassing driveline repair services, specially designed for heavy-duty trucks.

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EGR & DPF

Your aftertreatment systems need to be in top shape, not just for performance on the road but to stay on the right side of the EPA and their regulations.

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Engine Repair, Rebuild, Overhaul & Conversion

Whether it's a simple repair, a complete engine rebuild, or even a conversion project, we've got you covered!

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Express Lube Repair

Our exceptional express lube service guarantees a swift and confident return to the road. Count on us to have you back behind the wheel in no time, feeling assured and ready to go.

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Exhaust System Repair

Ready to enhance truck performance and meet emissions standards? Our solutions offer a seamless blend of increased power and environmental responsibility.

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HVAC System Repair

Our team of skilled technicians specializes in heavy-duty HVAC system repairs to keep your trucks running smoothly, no matter the weather or the road ahead.

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Oil & Fluid

Our skilled team delivers exceptional heavy-duty oil and fluid repairs. With our expertise, your trucks will continue to operate smoothly and efficiently, minimizing downtime.

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Suspension Repair

Is your ride feeling a bit bumpy? Then rely on our heavy-duty suspension repair service to sort out all of your suspension woes and get you back on the road safely and comfortably.

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Tire Repair

Recognizing the critical significance of uninterrupted vehicle operation, we provide dependable tire repair services tailored precisely to your requirements.

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Transmission & Clutch Repair

Our expert technicians specialize in all aspects of heavy-duty diesel repair, utilizing advanced techniques to ensure your vehicles perform at their best on the road.

"Seth, is friendly and professional.  He showed up on time and finished the job. Excellent mechanic!"
Jevon Hamm

New England Firewood, LLC

5 star review

"I have been using Wrenchn-It Diesel for over 4 years now. Started with oil change for dump truck, mobile service for replacing hydraulic lines and belts on machines. Seth has always been there on short notice and is a great mechanic. Just a great overall guy and very easy to work with. Highly recommend!"

"I had a hub bearing go out on my truck. Butler's Truck Repair got me fixed up quickly and did great work at a very fair price. I highly recommend them for all repairs, from pickups to semi trucks. Thanks  to Sam for the great work."

Craig Loring

5 star review

"I gotta give a big shoutout to the team at WRENCHN’ IT DIESEL REPAIR! They went above and beyond to accommodate me and my family in getting our rig back on the road!
I CANT THANK YOU ENOUGH SETH!"

"I had a hub bearing go out on my truck. Butler's Truck Repair got me fixed up quickly and did great work at a very fair price. I highly recommend them for all repairs, from pickups to semi trucks. Thanks  to Sam for the great work."

DANNY MOHAMMED

5 star review

"Studs broke on my truck called all around nobody was able to fix it or had the time, called wrench it and he said no problem but it will be a wait,the man went pick up studs nuts and rims And came out to me and fixed in the rain. Thumbs up to this guy. All our truck repairs up in this area will be done by them. Highly recommend 👌"

"I had a hub bearing go out on my truck. Butler's Truck Repair got me fixed up quickly and did great work at a very fair price. I highly recommend them for all repairs, from pickups to semi trucks. Thanks  to Sam for the great work."