The automotive industry is advancing fast, and as it seems, all the major automakers are hell bent on the complexities that come with it: emissions, safety, comfort, and autonomy. While there's ...

GM Authority has received a growing number of emails and messages from General Motors pickup truck and SUV owners experiencing valve lifter problems. To note, the naturally aspirated 5.3L V8 L84 is ...

It's finally here. As we were going to press, General Motors announced it will be introducing an all-new 4.5L, V-8 Duramax diesel engine for its 11/42-ton trucks in 2009. At this point, I have more ...