EGR & DPF Repair in Lone Rock, WI

Truck Aftertreatment Repair

Your aftertreatment system is key to clean emissions and optimal performance. Over time, components like the EGR valve and DPF filter can clog with soot, reducing airflow and triggering warning lights. When left unaddressed, these issues can decrease power, increase fuel usage, and put your engine at risk.

We offer complete truck aftertreatment repair services to resolve these problems quickly and effectively. Our team handles everything from EGR valve replacement for trucks to full DPF cleaning for trucks and forced regens. Whether you’re dealing with soot removal or persistent system faults, we have the equipment and expertise to make things right.

Signs you might need EGR or DPF repair:

• Frequent regen cycles or failed regens
• Loss of engine power
• Strong exhaust odor or visible soot
• Check engine light or DPF warning indicators

Bring your truck in for a system check before those symptoms lead to more serious damage.

What Makes Us Different

At GJ’s Service, we’re a family-oriented shop that believes in doing things the right way. With a team of four experienced technicians, every truck that comes through our doors is treated with care and attention to detail. You’ll never be rushed, and you’ll always get honest answers.

What sets us apart is our commitment to quality and people. We know how important it is for your truck to stay on the road, and we work hard to ensure you’re back behind the wheel as quickly—and safely—as possible. Our customers trust us because we treat them like family, not just another number in the queue.

When you come to us, you’re not only getting reliable repairs. You’re getting a partner that cares about your success.

Contact Us About Semi Truck DPF Filter Cleaning in Lone Rock, WI Now: Call 608-583-2200!

If your emissions system needs attention, don’t wait. Call 608-583-2200 today and let’s schedule your service. Whether it’s a failed regen or a clogged DPF filter, we’ll help you get it resolved the right way.

FAQs

What Areas Do You Serve For EGR and DPF Repair?

We are located at 420 East Forest Street, near the central Lone Rock area. We proudly provide service throughout Spring Green, WI; Gotham, WI; Sauk County, WI; Iowa County, WI; and Richland County, WI. If you're within a 50-mile radius of Lone Rock, we’re ready to help.

How Do You Fix an EGR Problem?

Fixing an EGR issue starts with identifying the cause—whether it’s a stuck valve, sensor error, or cooler blockage. We then clean or replace the affected components depending on severity. The goal is to restore proper exhaust flow and lower the combustion temperature, which helps improve performance and emissions.

Can You Clean Your DPF Yourself?

DIY DPF cleaning kits may seem appealing, but they typically don’t address deeper carbon buildup or sensor faults. True cleaning requires specialized equipment to ensure the filter is thoroughly cleared and restored. For best results and compliance with emissions standards, it’s always better to have it handled professionally.

Don’t Wait On Emissions Issues—Schedule Your Service Now

If you’re noticing performance problems or warning lights tied to your emissions system, give us a call at 608-583-2200. Our team is ready to get you back on the road with reliable, clean-running performance you can trust.