which could mean that one or more injectors are experiencing a high fuel-return flow rate. People usually start looking beneath the truck for signs of fuel, but this isn't that kind of a leak. Let's have a look at these, and other related trouble codes, to provide a little more insig...
A large percentage of 2011 model year 6.6L Duramax LML diesels endured repeated reliability problems with the SCR and DEF systems. The DEF sensor, NOx sensor, and DEF pump are amongst the most commonly replaced components of the system. Additionally, problems were identified with DEF freezing in...
000 psi) and injectors (quick-firing piezoelectric units) from Bosch. A selective catalytic reduction (SCR) system joined forces with the rest of the emissions system to better help curve NOx, while a ninth injector
Problems with LB7 fuel injectors were quickly identified as dealerships became flooded with repair orders for failed injectors. The root cause of the issue would later be determined to be the location of the fuel injectors beneath the valve covers. Injector failures became so common that GM was...
6.6L LMM Duramax diesel overview, including the introduction of an advanced exhaust aftertreatment system to the Duramax diesel engine platform. The LMM Duramax was the fourth generation Duramax diesel and available for 2007 to 2010 model years. It is fo