Heavy-Duty Truck repair Services

Truck Coolant System Repair Services in Plaistow, NH & Surrounding Areas

Struggling to stay cool on the road in Joplin, MO? 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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Does It Matter What Coolant I Use?

Absolutely! Coolant is not just a simple liquid; it contains additives that prevent corrosion, lubricate water pumps, and enhance the cooling efficiency of the engine. Using the right coolant can help avoid overheating issues, prevent engine damage, and extend the overall life of critical components. 

How Long Does Coolant Last?

The longevity of coolant varies based on factors like driving conditions, load, and vehicle type. Generally, it is recommended to change the coolant after the first 210,000 km (140,000 miles) or 120 months and then every 30,000 km (20,000 miles) or 24 months. 

Truck Radiator Repair Shop in Plaistow, NH

At Tri-State Diesel Repair, we offer a wide range of coolant system repairs for heavy-duty trucks to keep your vehicles performing at their best:

Radiator Flushing: Over time, coolant can accumulate contaminants that hinder its ability to cool the engine effectively. Our radiator flushing service removes these impurities, ensuring optimal engine temperature regulation.

Water Pump Replacement: The water pump is vital to circulating coolant throughout the engine. If it fails, your engine can overheat, leading to severe damage. Our team can quickly diagnose and replace faulty water pumps, preventing costly repairs down the road.

Thermostat Inspection and Replacement: The thermostat controls the flow of coolant based on the engine's temperature. A malfunctioning thermostat can cause erratic cooling, leading to engine issues. Our experts can inspect and replace the thermostat to maintain a consistent engine temperature.

Coolant Leak Repairs: Leaks in the coolant system can be a significant problem. We employ advanced techniques to identify and repair leaks promptly, preventing coolant loss and potential engine damage.

Pressure Cap Testing: The pressure cap helps maintain the right pressure in the coolant system. A faulty cap can lead to cooling system inefficiencies. We test and replace pressure caps to ensure proper coolant circulation.

Areas We Also Serve For Coolant System Repairs

We proudly bring our coolant system repair service to within 25 miles of Plaistow, NH, including the following areas:

New Hampshire 

Portsmouth, NH.

Maine 

Kittery, ME. 

Massachusetts

Rockport, MA; Manchester-by-the-Sea, MH; Salem, MH.

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Get in touch with Tri-State Diesel Repair today to schedule, truck & equipment repair services in Plaistow, NH & the surrounding areas.

our repairs

Our Truck Repair Services

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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."