The most common culprit is carbon buildup on the throttle body, exhaust gas recirculation (EGR) valve and idle air control (IAC) valve. Here well show you how to clean an EGR valve.

Read about Diesel Tech's EGR bypass kit for a 6.0L Powerstroke engine, only on dieselpowermag.com, the official website of Diesel Power Magazine.

I left Vehicle Testing Services, a San Antonio, Texas, facility where Detroit Diesel is testing its VNT EGR engines, in a Century Class Freightliner. Chuck Blake, Detroit’s application engineer, and ...