DPF (Diesel Particulate Filters) are specially designed to filter or trap diesel exhaust particles or soot. As you can surely imagine, over time the filter will pick up a lot of waste particles and will need to be emptied to maintain performance. The process by which the DPF is cleaned or emptied is referred to as regeneration. In other words, DPF regeneration is the process of cleanly burning off or removing the excess soot deposited in a DPF filter or clearing a blocked DPF filter.

Understanding the need for better emissions control while providing maximum performance, Navistar International created the Maxxforce 13 engine. With impressive responsiveness, excellent fuel economy, and a smoothly performing engine, the Maxxforce 13 engines had promised to give truckers many happy years on the road. Unfortunately, this was not the case as many problems arose with the EGR which led many truckers to delete the EGR which then led to further problems.

Intro A search on the internet for 6.4 Powerstroke will reveal that many owners of the vehicle engine have been battered with issues relating to fuel economy and overall performance. The 6.4 is actually a great engine. The problem is the emissions for the most part and owners who think they are driving a 7.3 and maintenance can go by the wayside. I will admit the 6.4 does have some downfalls but if taken care of properly there’s no reason it won’t last.

Background The exhaust gas recirculation valve abbreviated as the EGR valve is an emissions control device primarily intended to lower nitrogen oxide pollution. Oxides of nitrogen by properly in the engine’s combustion chamber. Nitrogen oxide is an inert gas and will start to build at temperatures above 2500 degrees Fahrenheit. The EGR valve recirculates some of this nitrogen oxide pollution back into the engine’s combustion chamber because the exhaust gas helps lower the temperatures of the air/fuel mixture.

Background Motor vehicles and their fuels are the most significant sources of toxic air pollutants. The California Air Resources Board has lowered the public’s exposure to these toxic emissions. Since 1990, the estimated cancer risk in California has been reduced to almost 50%. The positive news is that through CARB’s strict emissions regulations, vehicles today are 95% cleaner than they were 30 years ago. In the future, CARB plans to make vehicles zero or near-zero emissions.

Background Loss of power, rough idle or elevated emissions results in more and more inexpensive repairs. The increasingly common cause of this is a dirty or stuck EGR valve and carbonized intake and exhaust components. Best Way to Clean The EGR Valve Although essentially simple, EGR system has one weak point. It can get clogged-up by soot and carbon build-up, which are a part of exhaust gases. As a result, exhaust flow will be obstructed, or the EGR valve will get stuck.