The fuel and exhaust systems inside diesel engines work closely together. As a result, fuel and exhaust-related issues can be some of the most difficult to diagnose: A symptom in one system can often ...

The air filter setup on most diesels is the same as on gasoline-powered vehicles, with the filter located inside the cold air collector box located under the hood. You have to take one big precaution ...

High-pressure common rail fuel (HPCR) systems are standard on nearly every diesel engine today, from heavy equipment to over-the-road trucks, light-duty trucks, large generators and more. HPCR fuel ...

"Common rail." It is a term that at this point is universally known across the entire diesel space. However, for uninitiated or new enthusiasts, the term refers to the manner in which late-model/newer ...

In the world of heavy-duty pickups, competition under the hood is fierce, with major brands like Duramax, Cummins, and Powerstroke, making the list of the most reliable diesel engines ever built. In ...

Symptoms of a malfunctioning NOx sensor include increased fuel consumption, as well as reduced power and acceleration. If a sensor fails, it will also trigger an on-board diagnostic (OBD) code, ...

Diesels require more stored energy for starting than gasoline vehicles do, especially on cold days. Instead of just using the battery to enable the starter to crank ...

As a result, fuel and exhaust-related issues can be some of the most difficult to diagnose: A symptom in one system can often arise from a problem in the other. Here are three common fuel and exhaust ...