Is your semi-truck producing excessive smoke, losing power, or failing emissions tests? At Lawler DSL Repair, we specialize in heavy-duty exhaust system repairs, muffler replacements, and emissions system diagnostics in Fresno, CA.

Professional Truck Exhaust Repair in Fresno, CA
Your truck’s exhaust system plays a crucial role in emission control, fuel efficiency, and engine performance. At Lawler DSL Repair, we diagnose and repair all exhaust-related issues, ensuring your vehicle runs cleaner and more efficiently.
Our exhaust system repair services include:
- Exhaust leak detection & pipe repairs
- DPF (Diesel Particulate Filter) cleaning & regeneration
- Muffler & catalytic converter replacements
- EGR system repairs & valve replacements
- DEF (Diesel Exhaust Fluid) system diagnostics & repairs
- Exhaust manifold & gasket replacements
- SCR (Selective Catalytic Reduction) system maintenance
We ensure your truck meets emissions regulations, preventing fines, downtime, and reduced fuel efficiency.
What Makes Us Different?
At Lawler DSL Repair, we provide:
- Complete in-shop exhaust repairs in Fowler, CA
- 24/7 mobile exhaust system service & roadside assistance within 50 miles of Fresno, CA
- Certified diesel mechanics specializing in emissions & exhaust repairs
- Fleet exhaust maintenance programs for long-term compliance
From minor exhaust leaks to full emissions system overhauls, we keep your truck running at peak efficiency.
FAQs
What Areas Do You Serve for Exhaust Repairs?
We’re located in Fowler, CA, near Fresno, CA, and proudly serve Selma, CA; Kingsburg, CA; Reedley, CA; Dinuba, CA; Visalia, CA; Tulare, CA; Clovis, CA; Sanger, CA; and Bakersfield, CA.
How Do I Know If My Exhaust System Needs Repair?
Signs of exhaust issues include loud noises, loss of power, increased fuel consumption, excessive smoke, or check engine lights related to emissions.
Can You Clean or Replace a Clogged DPF?
Yes! We offer DPF cleaning, forced regeneration, and full filter replacements to restore performance and prevent engine restrictions.
How Can I Get My Exhaust System Repaired?
Call 559-939-6609 today to schedule exhaust repair or emissions service in Fresno, CA, or request mobile exhaust system diagnostics.
Contact Us for Exhaust System Repair – Call 559-939-6609 Today!
Need exhaust repair or emissions service in Fresno, CA? Call 559-939-6609 for expert truck exhaust diagnostics and repair. Lawler DSL Repair will keep your emissions system running clean!
What They're Saying About Us
See why our customers consider Lawler DSL Repair the go-to repair shop in Fowler, CA and the surrounding areas!
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 8:00am to 5:00pm and have roadside assistance available 24/7!