Few things are more frustrating for a fleet manager or equipment owner than turning the key on a cold morning and hearing the engine crank—but not fire. A diesel engine...

A failed injector seal on a common rail diesel engine is one of those problems that starts quietly and ends catastrophically. It begins with a faint chuffing noise from under...

Black smoke from a diesel exhaust stack is the visual signature of incomplete combustion. It means that fuel is entering the cylinder, but there is not enough available oxygen to...

The high-pressure fuel pump is the heart of the modern diesel engine. Operating at pressures that can exceed 30,000 PSI, this component is responsible for compressing fuel and delivering it to...