Common Aftertreatment System Issues
DPF Regeneration Failure
Your Diesel Particulate Filter (DPF) is a critical part of your after-treatment system. Since this component's storage capacity is limited, the soot and carbon that it captures need to be removed after a certain period of time. Most DPFs are able to automatically regenerate, which essentially means they burn off the material within them. This regeneration process begins when your DPF sensors detect that the component is full, but if these sensors malfunction, the burn-off process may need to happen manually. This is called forced regeneration. Forced regeneration is a process facilitated by mechanics who override your DPF sensors and begin the regeneration process manually.
EGR Valve Malfunction
Your Exhaust Gas Recirculation (EGR) valve is constantly exposed to unfiltered exhaust fumes, which puts it at a higher risk of seizing up. If this valve seizes, it will not function properly and may even fail altogether. A failing valve may recirculate too much-cooled exhaust into your combustion chamber, which in turn will lower your engine’s temperature to a point where it stalls or fails to start. Fortunately, we here at Fleet Services Group have the resources and expertise to repair even the worst EGR valve problems.
Why You Shouldn’t Ignore EGR And DPF Issues
Ignoring EGR and DPF issues can have catastrophic consequences. If you notice a check engine light or a Malfunctioning Indicator Lamp (MIL), be sure to bring your truck in for service right away. Aftertreatment issues that are left to fester and get worse will likely end up costing you thousands of dollars more than you would have originally paid.
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For high-quality EGR and DPF service, call Fleet Services Group today!