with owners generally happy with their LWN Duramax-powered trucks. That said, one common complaint seems to be with the emissions system. The diesel exhaust fluid (DEF) sensors and DPF seem to be ...

In the world of heavy-duty pickups, competition under the hood is fierce, with major brands like Duramax ... One of these systems, the exhaust gas recirculation (EGR), grabs exhaust gas and ...

the DEF heaters are prone to failure, and the only fix is to replace the heater. Of course, if you live in an area with year-round warm weather, this is an issue you can ignore. The LMM Duramax ...