The most common causes of this are faulty injectors, a faulty injector pump, a bad air filter (causing not enough oxygen to be supplied), a bad EGR valve (causing the valves to clog) or even a bad turbocharger. Some of these are easy fixes while others may require you to visit a certified mechanic. We hope this helps.-BDP item 8 detroit dd15 cascadia egr valve actuator # A4701500494 dd13 freightliner 8 - detroit dd15 cascadia egr valve actuator # A4701500494 dd13 freightliner $200.00 Best Selling in Other Parts Freightliner Cascadia P3 DD15 Front HVAC Assembly Part Info 541-922-6455 Request Info. EnterpriseHagerman Inc. UMATILLA OR. $3,000.00 Ecm Performance offers custom Engine Control Module (ECM) programming & diagnostic support for Cummins ISB 6.7 & ISC 8.3, ISC, ISL, ISM, ISX, Paccar PX6, PX7, PX8, PX9, MX13 & International MaxxForce DPF equipped diesel trucks like Ford F650 - F750, Peterbilt, Capacity, Freightliner, Kenworth, Sterling Trucks, Thomas Bus, Utilimaster & More.