BobcatTR
Silver Member
So is this why I'm supposed to loosen the nut under muffler???The egr reduces the burn temps in order to prevent the production of nitrous oxides (pollutant that causes ground level ozone) but also causes more soot. As a result it痴 then necessary to have a particulate filter (DPF) to collect the soot, which is also a pollutant. Then as the dpf plugs up, it痴 necessary to perform a regen, usually by far exhausting fuel into it or spraying directly into the dpf through a separate line. This burns the dpf clean restore exhaust flow.
So to answer your question, the egr causes the exhaust to become dirty.
The end result is, the life of the Diesel engine is significantly compromised and the pollution is released all at once instead of gradually during operation. Seems logical.
And see if it drops the soot?
Or am I way off base here.
I work for a municipality, when our newer dump trucks get this warning lite, we have to take it out on the interstate and blow it out wide open.
Which we are governed to 65mph.
I know it better to run tractor up on higher RPM'S, this must be why.
Our city trucks do a lot of ildeing and 10 or less mph patching potholes etc.