Noticing coolant leaks, rising engine temperatures, or frequent overheating in one of your fleet trucks? Our specialist team provides expert heavy-duty coolant system repairs to protect your engine, reduce downtime, and keep your fleet moving.

Services Offered at Our Coolant System Repair Shop in Jamestown, ND
Your cooling system plays a critical role in keeping your fleet operating reliably. If a coolant system problem goes unchecked, it can quickly lead to engine overheating, unexpected breakdowns, and expensive repairs that take your trucks out of service.
At Buffalo City Diesel, our specialist team provides heavy-duty truck coolant system repair for fleets across a wide range of industries, including:
- Cooling system diagnostics
- Radiator replacement
- Water pump replacement
- Thermostat replacement
- Coolant hose repairs
- Pressure testing
- Coolant flushes
- Expansion tank repairs
Signs Your Fleet Needs Cooling System Repairs
Common signs your fleet may need coolant system repairs include:
- Engine overheating
- Coolant leaks beneath the truck
- Low coolant levels
- Steam coming from the engine compartment
- Rising temperature gauge readings
- Frequent coolant top-offs
- Steam under the hood
- Sweet coolant smell
- Damaged hoses
Addressing these problems early can help prevent costly engine damage and reduce unnecessary fleet downtime.
Why Choose Us for Coolant System Repair
12 Service Bays: With 12 fully equipped service bays, we're able to complete cooling system repairs efficiently and get your fleet back to work sooner.
In-House Parts Department: We stock many common cooling system components, including hoses, thermostats, belts, and water pumps. If a specialist part is needed, we can typically have it within one business day.
12-Month Warranty: All cooling system repairs include a 12-month warranty for added confidence.
Fleet Specialists: We know how damaging overheating can be to busy fleets and provide dependable repairs that help prevent repeat failures.
Built On Relationships: Long-term customer relationships are at the heart of everything we do, allowing us to better support your business as it grows.
Mobile Repairs: Our mobile technicians can diagnose coolant system faults and perform many repairs on-site.
Contact Us About Truck Coolant System Repair Now: Call 701-253-2844
If one or more of your fleet trucks is experiencing coolant system problems, don't wait until overheating causes costly engine damage. Our specialist team will diagnose the issue, recommend the right repair, and get your trucks back on the road as quickly as possible.
Call 701-253-2844 today to schedule your truck coolant system repair.
FAQs
How do I get to your shop?
Our shop is located at 2603 3rd Avenue SW, Jamestown, ND 58401-7002, just minutes from Interstate 94 and US Highway 281. Whether you're traveling east or west on I-94 or heading into Jamestown via US Highway 281, you'll find our shop easy to reach. If you need directions, give our team a call at 701-253-2844.
What areas do you serve for heavy-duty coolant system repair?
We proudly serve fleets throughout Jamestown and the surrounding communities, including Tappen, Dawson, Steele, Pettibone, Valley City, Carrington, Pingree, Spiritwood, Medina, Eldridge, Windsor, Cleveland, Sanborn, Oriska, Cooperstown, New Rockford, Napoleon, Finley, Lisbon, Wishek, Oakes, Ellendale, Fessenden, Ashley, and Casselton.
What are the signs of truck coolant system failure?
Common warning signs include engine overheating, coolant leaks, low coolant levels, frequent temperature spikes, steam from the engine compartment, and the need to repeatedly top off coolant. Addressing these issues early can help prevent serious engine damage and reduce costly fleet downtime.
What causes a heavy-duty truck cooling system to overheat?
A cooling system can overheat because of coolant leaks, a clogged radiator, a faulty thermostat, a failing water pump, damaged hoses, or restricted coolant flow. Identifying the cause early helps prevent further engine damage and keeps your fleet operating reliably.
How can I get heavy-duty coolant system repair?
If one of your fleet trucks needs coolant system repairs, give our specialist team a call at 701-253-2844. We'll inspect the problem, explain your repair options, and work efficiently to get your truck back on the road while minimizing downtime for your operation.
Heavy-Duty Truck Repairs in Jamestown, ND
From engine diagnostics and brake repairs to electrical, suspension, hydraulic, and trailer repairs, we quickly identify the problem and deliver dependable solutions that get your vehicles back to work with confidence.
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