Truck EGR & DPF Services in Fontana, CA

Proudly Serving the Counties of San Bernardino, Riverside & Los Angeles Since 2004

EIP Diesel Repair, located in Fontana, California, offers a comprehensive EGR and DPF repair service for medium- and heavy-duty diesel trucks. From forced regeneration cycles to EGR valve repairs, our team can tackle any of your after-treatment problems, no matter how extensive the damage may be.

Diesel mechanic performing EGR & DPF services on semi truck in Fontana, California

EGRs Explained

Exhaust gas recirculation (EGR) systems work by recirculating a portion of the engine's exhaust gases back into the combustion chamber, decreasing the amount of oxygen available for combustion and lowering peak combustion temperatures. This process is an essential step in reducing truckers’ carbon footprint as it reduces the production of harmful nitrogen oxides (NOx). 

The EGR system is comprised of several components, including the EGR valve, EGR cooler, and EGR control solenoid, which work together to manage the recirculation of exhaust gases. Issues with the EGR system can cause problems such as the "check engine" light, reduced fuel efficiency, decreased engine performance, and rough idling.

DPFs Explained

Diesel particulate filters (DPFs) are designed to capture and trap soot and other harmful emissions, preventing them from being released into the environment. When the filter becomes full, the engine management system initiates a regeneration process to burn off the trapped particles and keep the filter working effectively. This process can either be passive or active. Passive regeneration occurs when heat from the exhaust system triggers the regeneration process, while active regeneration involves injecting additional fuel into the engine to raise the exhaust temperature.

Our EGR & DPF Repairs

Over time, EGR and DPF systems can become contaminated with carbon and particulate build-up, impairing their function and reducing your truck's performance. Fortunately, if you’re in the Fontana, California area, EIP Diesel Repair offers comprehensive aftertreatment maintenance and inspection services. Our team is fully equipped and qualified to clean and remove all contamination from your after-treatment system. We'll also assess each part of the system for any faults and replace them as needed. Our experienced technicians can repair or replace EGR valves, clean or replace DPF filters, and perform other necessary repairs to keep your after-treatment system in optimal condition. 

Contact Us

If you're experiencing issues with your truck's after-treatment system, contact EIP Diesel Repair today to schedule a service appointment.


We Offer Top-Rated Heavy-Duty Diesel Mechanic Services

EIP Diesel offers a wide-range of diesel mechanic services. Our full-service heavy-duty repair shop provides repair and maintenance for all types of diesel vehicles, from semi truck trailers & buses, to RV's & heavy equipment. We have all the tools & tech needed to perform top-rated repairs on all makes & models. We are centrally located in Fontana, CA, and are proud to keep the surrounding areas of San Bernardino, Riverside, Anaheim, Rancho Cucamonga, & more moving safely!

Customers Reviews

Really good Heavy duty diesel mechanics, its my go to place to service my truck. Honest and reliable.
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A+ Mechanics. I've been in the trucking industry for 30 years. The entire team at EIP Diesel repair have proved to be honest, knowledgeable and on schedule.  They have overhauled 3 different trucks for me, and the performance is on point.
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Juan Roberto Avilo Nuno

Great place anything from a oil change to a overhaul they can do it all 100% recommended.
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Ismael Becerra


Contact Us

Contact us today to schedule service or with any questions.

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16144 Boyle Ave, Fontana, CA 92337
Truck mechanics at EIP Diesel Repair