The Chevrolet Silverado HD — and its corporate twin in the GMC Sierra HD — can be had with either a standard 6.6-liter gasoline V8, or the optional 6.6-liter Duramax turbo-diesel. Opting for the TD ...
General Motors has been using Duramax diesel engines in certain workhorse models for nearly a quarter century. The 6.6-liter V8 version which powers Chevy Silverado 2500/3500HD and GMC Sierra Heavy ...
When it comes to heavy-duty diesels, enthusiasts and truck owners inevitably circle back to the best American diesel engines: Ford's 7.3L PowerStroke, Dodge's 5.9L Cummins, and GM's 6.6L Duramax. If ...
A new service bulletin reveals a frustrating defect affecting certain heavy-duty GM pickups. Here is why drivers are stalling with gas in the tank.
General Motors is looking into a fuel system issue that could cause certain heavy-duty pickups to stall, even when the fuel ...
General Motors is investigating a fuel system problem that can cause certain heavy duty pickup trucks to run out of gasoline even when the dashboard indicates that fuel remains in the tank. The issue ...