If your truck’s stuck in regen, losing power, or flashing warnings, your emissions system is likely choking up. Heavy-duty EGR and DPF repair clears blockages, restores flow, and prevents major engine damage or compliance violations.
Truck Aftertreatment Repair in Mount Horeb, WI
Your aftertreatment system keeps your emissions clean and your engine legal. That includes the EGR (Exhaust Gas Recirculation) valve and the DPF (Diesel Particulate Filter). When these components clog, fail, or trigger warning codes, you’ll lose power, fuel economy, and sometimes the ability to drive altogether.
Another side effect of faulty aftertreatment systems is that they may cause you to breach environmental regulations. If you are found guilty of this, the EPA can fine you in excess of $45,000 per noncompliant vehicle.
To keep your operations effective and compliant, we can repair or replace:
- DPF filter cleaning and forced regeneration
- EGR valve and cooler replacement
- DPF and DOC inspections and service
- DEF system diagnostics and DEF malfunction fixes
- Sensor calibration and soot buildup removal
- EGR system malfunction for trucks
- Truck DPF repair and soot load resets
If you’re seeing check engine lights, loss of power, or regen cycle failures, your DPF or EGR could be the problem. Our team uses industry-standard tools to clear faults, clean components, and get your system back to peak performance.
Experience the River Valley Difference!
Service Multiple Trucks at Once: Our shop can work on six trucks at a time—faster service means less time off the road for you.
Customer Service Focus: We explain what failed, why it happened, and what you actually need—no confusing jargon or upsells.
Transparent Pricing: Clear, upfront pricing is our standard. You’ll never be surprised by your invoice.
Easily Accessible: Located right off I-94 and I-151 in Mount Horeb, WI—easy to find, easy to get in, and easy to get rolling again.
FAQs
How can I get heavy-duty EGR and DPF repair?
Call 608-574-5785 now to schedule your EGR and DPF repair. We’ll clean, repair, or replace what’s needed—and make sure your truck meets emissions standards and performs as it should.
How do I know if my EGR is stuck?
Signs of a stuck EGR (Exhaust Gas Recirculation) valve in heavy-duty diesel vehicles include rough idling, loss of power, increased fuel consumption, black smoke from the exhaust, or a check engine light. Diagnostic tools can confirm EGR faults for proper repair or replacement.
Can you clean your DPF yourself?
Cleaning a DPF (Diesel Particulate Filter) on a heavy-duty diesel vehicle yourself is possible, but not recommended without proper equipment. Manual methods may not fully remove soot and ash. Professional cleaning ensures safe, thorough regeneration or thermal baking for optimal filter performance and longevity.
What areas do you serve for heavy-duty EGR and DPF 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 Semi Truck DPF Filter Cleaning in Mount Horeb, WI Now: Call 608-574-5785!
If you're dealing with soot buildup, regen issues, or a stuck EGR valve, call 608-574-5785 to schedule your semi-truck DPF filter cleaning or full emissions repair. Get it fixed fast—before it becomes a roadside problem.
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
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.