Coolant Systems in Buchanan, MI

Truck Radiator Repair Shop in Buchanan, MI

Your engine’s temperature isn’t just a number—it’s a sign of its health. And when temperatures rise too high, your operation grinds to a halt. At Buchanan Diesel, we’re here to make sure that doesn’t happen.

We inspect, repair, and replace every part of your truck coolant system—from the radiator and thermostat to the fan clutch and water pump. If your temperature gauge spikes, or you’re spotting coolant leaks under your vehicle, it’s time to get it checked.

We also handle full coolant flushes and pressure tests to eliminate air pockets or blockages. Trapped air or degraded antifreeze/coolant are common causes of engine overheating. If ignored, they can crack cylinder heads or blow gaskets. Not on our watch.

Our experienced techs use diagnostics to pinpoint failing components and read engine codes/diagnostics to save time and prevent deeper engine damage. If your heater isn’t working or you’re losing heat from the heater core, we’ll take care of that too.

What Makes Us Different

At Buchanan Diesel, you’re not just another work order—you’re part of our crew. We go beyond standard repairs by building real relationships with every customer, especially our loyal return clients who count on us regularly.

Need something custom? We’re known for our fabrication capabilities—from wide-body kits and underglow installs to complete interior overhauls and hotshot truck conversions. So, if your cooling system needs an overhaul and your ride could use some extra care, we’ve got you covered.

We take pride in getting things done right the first time. But if something slips through, we’ll own it and make it right—no questions asked. You’ll always have our full attention, and we make sure your input is heard.

We also offer mobile repair by appointment. So if you can’t come to us, we’ll come to you. It’s perfect for busy shops, farms, or equipment yards that need fast and dependable service without dragging units into the shop.

Contact Us About Radiator Repair Now: Call 269-371-2001!

Whether your radiator is clogged or your coolant lines are leaking, we’re ready to fix it fast. Call 269-371-2001 today to book your coolant system repair. Let’s protect your engine before it overheats and costs you downtime.

FAQs

What Areas Do You Serve For Coolant System Repair?

As well as Buchanan, MI, we also proudly service the following areas: Niles, MI; St. Joseph, MI; South Bend, IN; Benton Harbor, MI; Dowagiac, MI; Three Oaks, MI; Bridgman, MI; Stevensville, MI; Elkhart, IN; Goshen, MI; Bristol, MI; Coloma, MI; and Paw Paw, MI. If you're located anywhere in the Michiana region and within a 50-mile radius, we’ve got you covered. Our mobile service makes it easier than ever to get the help you need.

What Are The Common Signs Of A Malfunctioning Cooling System?

Common signs include engine overheating, visible coolant puddles under your vehicle, or a constantly rising temperature gauge. You might also notice your heater blowing cold air or steam coming from under the hood. Left unresolved, these issues can lead to major engine failure.

How Do You Detect Where A Coolant Leak Is Coming From?

We begin by performing a pressure test to check for system integrity and look for visible signs like wet hoses, corroded connectors, or cracked reservoirs. If needed, we use UV dye to help spot leaks not visible to the naked eye. With the right tools and experience, pinpointing a leak becomes quick and reliable.

Need Repairs Done Right? Let’s Talk.

Coolant issues are serious, but fixing them doesn’t have to be stressful. At Buchanan Diesel, we bring top-tier workmanship and personalized service to every job. Call 269-371-2001 now and let’s get your truck running cool and clean again.