How Do EGRs and DPFs Work?
EGR systems, or exhaust gas recirculation systems, work by recirculating a portion of the engine's exhaust gases back into the combustion chamber, reducing the amount of oxygen available for combustion and lowering peak combustion temperatures. The EGR system includes the EGR valve, EGR cooler, and EGR control solenoid.
DPFs capture and trap soot and other harmful emissions to prevent them from being released into the environment. Roughly every 300 miles, the engine management system initiates a regeneration process to burn off the trapped particles and keep the filter working effectively.
Stuck EGR Valves
Stuck EGR valves can cause significant performance problems in a heavy-duty truck. Over time, your EGR valve can get stuck open, shooting significantly more exhaust gases back into the combustion chamber. This will drop the temperature in your combustion chamber, leading to extensive engine damage if left unrepaired. Thankfully, Elite Truck & Fleet Service is fully equipped and qualified to repair or replace EGR valves on all types of diesel makes and models. Our experienced technicians can perform whatever type of repair you need to keep your after-treatment system in optimal condition.
DPFs capture carbon and other diesel particulate matter to lessen the pollution that enters the atmosphere. When the filter becomes full, it may cause the truck to enter limp mode and display a DPF service light. However, this doesn't mean the DPF needs replacement—instead, at Elite Truck & Fleet Service, we have the equipment and expertise to clean DPF filters as necessary with our forced regeneration cycle service.
Got a stuck EGR valve, a clogged DPF, or any other EGR and DPF problem? Contact our shop today for fast and reliable service.