Clogged EGR Valve at 19k miles
Just had my 2012 2500 RAM Cummins serviced for a service engine light. Turns out to be a clogged EGR valve at only 19k miles. The valve was replaced and sensors were cleaned. Service manager said th...
Forum Discussion
N-Trouble wrote:
What is the logic behind the exhaust brake making the truck run "cleaner"? And does this only apply to Cummins diesel motors?
The engines don't run cleaner, in fact when the EB is on with fuel applied (warm up idle) they run dirtier since they act like an EGR and decrease combustion efficiency.
What they do is keep the the turbine nozzle cleaner by scraping the soot off as they actuate. Without the EB on the vanes don't fully close, and soot buildup occurs.
This is true with any VGT turbo, but the HE351VE seems a little more prone to the issue.
