Most diesel engines in the U.S. use a combination of technologies to reduce emissions. Usually there will be a diesel particulate filter (DPF), selective catalytic reduction (SCR) with urea (DEF fluid ...

While most of the early problems have been engineered out of the exhaust gas recirculation systems on today’s clean diesel engines, corroded coolers, stuck valves and other problems still plague ...

This story appears in the July/August 2012 issue of Equipment & Maintenance Update, a supplement to the July 9 print edition of Transport Topics. Click here to subscribe today. The coolers at the ...

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 ...

A mechanic who was doing a repair on a Dodge Ram found an unexpected problem that caused a whole new level of alarm for him. The video documenting the situation comes from Dave’s Auto Center ...

200 miles after the update, my 2010 Audi A3 Cabriolet 1.6 has broken down and needs a new EGR valve. These are on back order and, after two weeks, I have no idea when I will get my car back. I am ...