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 ...

Brake assist systems depend on vacuum pumps, which serve as essential components. Failures reduce brake performance, trigger fault detection codes, and affect vacuum-based systems. Regular maintenance ...

Controlling vehicle emissions in modern vehicles involves more than just bolting up a catalytic converter and calling it a day. There are other components that effectively, and intuitively, cut out ...

Most rodders underestimate the importance of maintaining the emissions equipment on their cars. Contrary to popular belief, emission controls on modern engines are designed to help maintain an ...

Is your diesel truck struggling with poor engine performance, sluggish acceleration or reduced fuel economy? You might have a problem with your exhaust gas recirculation system. That might seem like a ...