Coolant System Repair in Mount Horeb, WI

If your truck’s running hot or dropping coolant, that’s a red flag—especially in Wisconsin’s sweltering summers and freezing winters. Heavy-duty coolant system repair keeps your engine safe when temperatures swing fast and hard.

Truck Radiator Repair Shop in Mount Horeb, WI

Your truck’s cooling system is critical for regulating engine temperature, especially under heavy loads. Overheating can damage everything from your cylinder heads to your transmission. Whether you're dealing with coolant leaks, fan failures, or temperature spikes, you need fast, effective service.

At River Valley Diesel Services & Construction, we diagnose and repair all parts of your truck’s engine cooling system, ensuring reliable operation in all driving conditions. Here’s what we can repair or replace:

  • Radiator leaks, cracks, and clogs
  • Coolant reservoirs and coolant flushes
  • Water pumps, fan clutch, and thermostat replacement
  • Heater core and coolant hoses
  • Pressure test and cap inspection
  • Diagnostics for engine overheating and dashboard warnings
  • Antifreeze/coolant replacement and compatibility checks

Watch for warning signs like low coolant levels, steam under the hood, or an unresponsive temperature gauge. These often point to a leak or circulation failure. We’ll inspect your truck's coolant system, pinpoint the issue, and repair it quickly to avoid deeper engine damage.

Experience the River Valley Difference!

Service Multiple Trucks at Once: With the ability to handle six trucks at once, we reduce downtime and keep your fleet moving.

Customer Service Focus: You’ll get clear, honest updates throughout the process—and fast answers when you need them most.

Transparent Pricing: Our estimates are always upfront. You’ll know exactly what the repair involves, with no hidden costs.

Easily Accessible: Located right off I-94 and I-151 in Mount Horeb, WI, we’re easy to reach whether you’re based nearby or just passing through.

FAQs

How can I get a heavy-duty coolant system repair?

Just call 608-574-5785 to book your heavy-duty coolant system repair. We’ll get your cooling system fixed and protect your truck from catastrophic engine failure!

How do I know if my water pump is bad?

Signs of a bad water pump in heavy-duty diesel vehicles include coolant leaks near the pump, engine overheating, whining or grinding noises, and visible rust or corrosion. A failing water pump can’t circulate coolant properly, risking engine damage if not repaired promptly.

What are the common signs of a malfunctioning cooling system?

Common signs of a malfunctioning cooling system in heavy-duty diesel vehicles include engine overheating, coolant leaks, low coolant levels, steam from the hood, and temperature gauge spikes. Ignoring these symptoms can lead to engine damage, so prompt inspection and repair are essential.

What areas do you serve for heavy-duty coolant system repair?

We are based at 3200 Hwy 78, Mount Horeb, WI, near I-94 and I-151.

As well as Mount Horeb, WI, we also proudly service the following areas: Madison, WI; Janesville, WI; Wisconsin Dells, WI; Beaver Dam, WI; Fitchburg, WI; Middleton, WI; Sun Prairie, WI; Verona, WI; Stoughton, WI; Baraboo, WI; Portage, WI; Lake Delton, WI; Reedsburg, WI; Dodgeville, WI; Monroe, WI; Columbus, WI; Fort Atkinson, WI; Waunakee, WI; and Evansville, WI.

Contact Us About Heavy-Duty Radiator Repair Now: Call 608-574-5785!

Coolant problems don’t fix themselves. If your truck is overheating or leaking, call 608-574-5785 now to schedule your heavy-duty radiator repair. This way, you can avoid catastrophic engine failure and expensive repairs and extended downtime.

What They're Saying About Us

See why our customers consider River Valley Diesel Services & Construction their go-to repair shop in Mount Horeb, WI and the surrounding areas!

I was in a jam and they came out and got me fixed up quick I would definitely recommend them if you’re in a jam

DTPA Gaming

Contact Us

Need roadside assistance, have questions, or want to schedule your truck or trailer in for a service or repair? Get in touch, we're open Monday through Friday from 7:00am to 5:00pm.

Our Hours

Monday - Friday
7:00 AM - 5:00 PM

24/7 Roadside Assistance

Speak to a Service Advisor now!