The most common mistake diesel technicians make when diagnosing problems and performing repairs on the aftertreatment system is to only look at one part of the system instead of the entire system. Upstream problems are often the cause of downstream failures.
It is important that whoever is performing maintenance and repairs on your aftertreatment system understands how the four components of the system work. They need to know what they are and the function that they perform. This basic information provides the foundation for the maintenance program and diagnostic and repair criteria that keep fleets from experiencing rising costs and unscheduled downtime caused by premature aftertreatment failures.
At Diesel Emissions Service, we have specialized in maintenance and repairs on aftertreatment systems since 2006 and we have seen firsthand the negative impact on fleets when the aftertreatment system is mismanaged. In this article, we are going to focus on the EGR system.