Coolant System Repair in Lone Rock, WI

Truck Radiator Repair Shop in Lone Rock, WI

Your truck's cooling system works silently behind the scenes—but when something goes wrong, the effects are immediate and potentially costly. From overheating engines to cabin heaters that stop working, cooling system failures don’t just impact comfort—they can lead to serious engine damage.

At GJ’s Service, we take a detailed approach to diagnostics and repair. Our team checks your engine cooling system from top to bottom, including the radiator, thermostat, water pump, coolant reservoir, and coolant lines. If you're experiencing fluctuating temperatures, puddles under your truck, or dashboard warnings, it's time to bring it in.

We use high-accuracy tools to pinpoint problems like coolant leaks, heater core clogs, and fan clutch issues. Services include coolant flushes, pressure tests, and targeted repairs using trusted parts. Our technicians also look out for signs of low-speed idle (LSI) overheating and assess coolant health to maintain system efficiency.

What Makes Us Different

At GJ’s Service, we treat your vehicle with the same care and attention we’d give our own. As a family-oriented shop, our focus goes beyond repairs—we build lasting relationships with every customer. Whether it’s your first visit or your fiftieth, we want you to feel respected and supported.

What sets us apart is our consistent commitment to quality. It’s not about doing the most—it’s about doing it right. Our four skilled technicians pay attention to every detail and never cut corners. That dedication is what keeps drivers coming back, knowing their trucks are in capable hands.

We also know how frustrating and stressful it can be when your truck is down. That’s why we prioritize communication, transparency, and genuine care. When you come to us, you're not just another job—you're part of our community.

Contact Us About Radiator Repair Now: Call 608-583-2200!

Experiencing overheating, coolant loss, or warning lights? Don’t wait for a small problem to become a major repair. Call 608-583-2200 now to schedule your coolant system repair. Fast, professional service you can count on.

FAQs

What Areas Do You Serve For Coolant System Repair?

We are located at 420 East Forest Street, near downtown Lone Rock, WI. In addition to Lone Rock, we also proudly serve Spring Green, WI; Gotham, WI; Sauk County, WI; Iowa County, WI; and Richland County, WI. Our service area extends approximately 50 miles from our shop.

How Do You Know If Your Coolant System Is Clogged?

A clogged coolant system usually causes your engine to run hotter than normal, particularly during idle or low-speed driving. You might also experience weak heat from the cabin vents, gurgling noises, or temperature fluctuations on your gauge. A professional inspection can quickly determine if internal blockages are affecting flow and performance.

What Are the Symptoms of a Bad Thermostat?

A malfunctioning thermostat can cause your engine to overheat or fail to reach its optimal operating temperature. Symptoms may include rising temperature gauges, inconsistent heating inside the cabin, or a sudden drop in engine performance. Replacing a faulty thermostat is a relatively quick fix that prevents more serious issues down the line.

Can I Still Drive With a Coolant Problem?

While it's possible to drive short distances with minor coolant issues, it's not recommended. Even small leaks or air pockets can lead to overheating, which risks damaging your engine's head gasket or other components. It’s always better to have a coolant issue diagnosed and repaired as soon as it’s noticed.

Ready To Get Back On The Road With Confidence?

If your vehicle is showing signs of overheating or coolant loss, don’t wait. Call 608-583-2200 today to book your inspection or repair. Let’s get your truck running cool and smooth again—just like it should.