I pulled the 435-hp VNM 64T day cab out of Volvo headquarters in Greensboro, N.C., grossing 70,000 pounds. I noticed that typical turbo sounds were lacking, replaced by a slight whistle as the turbo ...

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 ...

Bruce Smith puts five cleaner/degreasers to the test cleaning cross sections of a plugged Ford 6.7L Power Stroke EGR Cooler to see which one (s) work the best ...

Plugged exhaust gas recirculation (EGR) coolers are the bane of every diesel pickup owner. These radiators plumbed into the intake system do their job at keeping the air we breathe healthier by ...

Cleaning the EGR valve can seem like a complicated task, but with the Bardahl EGR Valve Cleaner Kit, it’s easier than ever—no need for dismantling! In this video, we test the effectiveness of the ...

This story appears in the July 26 print edition of Transport Topics. Click here to subscribe today. Fleet managers should consider total “fluid efficiency” when comparing trucks using exhaust gas ...

Idling and stalling problems can really add stress to your daily commute. The most common culprit is carbon buildup on the throttle body, exhaust gas recirculation (EGR) valve and idle air control ...