7.3 PowerStroke Vs. 5.9 Cummins Vs. 6.6 Duramax: How Do The Diesel Engines Compare?

The 7.3 PowerStroke, 5.9 Cummins, and 6.6 Duramax, are all iconic diesel engines, but how do they compare? Here's a ...

Tech Tip: How to Make Sense of NOx Sensor Failures

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, ...

What Does A Lift Pump Do On A Diesel Engine (And How Is It Different From A Fuel Pump)?

A lift pump and a fuel pump might be part of the same system that delivers fuel to a diesel engine, but they have very different roles to play.

From Frozen Fuel To Weak Batteries: 10 Tips To Protect Your Diesel Engine In Winters

Diesel engines need extra care in winter to avoid problems like fuel gelling, weak batteries, and thick oil. Key tips include ...
GM Authority

Pouring DEF Into A GM Duramax Truck Diesel Tank Can Be A Costly Mistake: Video

Most diesel truck owners understand how to put diesel exhaust fluid (DEF) in their trucks. However, some make the mistake of getting DEF in their fuel tank instead of the dedicated DEF tank. As the ...