Post with Markup If your Freightliner DD13 DD15 won’t accelerate past 55 MPH there may be a few reasons as to why you are experiencing this issue. The reason why Freightliner puts you into an engine derate or reduces your MPH is because they want you to correct the issue as soon as possible or damage may occur to your aftertreatment system. …
Post with Markup When most people think about diesel emissions on modern diesel engines, they think about diesel particulate filters, diesel oxidation catalysts, or the selective catalytic reduction. All of these components play an important part and offer significant features in helping an engine run efficiently while keeping pollutants to a minimum. But sensors play a significant role in how effective the entire vehicle operates, and the exhaust gas temperature sensor can lead to many problems if not maintained correctly…