The LB7 is otherwise a very reliable engine. As such, many owners will go through the hassle of replacing some or all of the injectors in their '01-to-'04 and 1/2 Duramax oil-burners with the idea ...

The fuel filter and filter head on 2001 to 2010 Chevrolet Silverado 2500HD and 3500HD trucks, along with 2001 to 2010 GMC Sierra 2500HD and 3500HD, equipped with the Duramax diesel V-8 engine ...

The LB7 was also the last Duramax not to run a diesel particulate filter (DPF), an emissions-reducing technology that has the unfortunate side-effect of reducing fuel economy.