Way back in 1981, Cadillac, reacting to the same pressure to maximize fuel economy automakers face today, came up with America's first mass-produced, variable-displacement, gasoline, V8 engine. Known ...

The idea behind GM's active and dynamic fuel management systems is brilliant, but they may be asking too much of the poor ...

General Motors’ Active Fuel Management system has been around long enough to earn both fans and vocal critics, and that split has created a simple but urgent question for buyers: which GM engines ...

Shoppers who care about long-term reliability increasingly want to know which General Motors engines avoid Active Fuel Management, the cylinder deactivation system that has drawn scrutiny from some ...

So, you're worried your Silverado or Sierra might run into Active Fuel Management (AFM) issues someday. But are they as bad as the internet would lead you to believe? Well, the short answer is yes.

Question:I own a 2010 Chevy 1500 Silverado with a flex-fuel 5.3-liter Vortec V-8. The motor has an Active Fuel Management system that deactivates from V-8 to V-4 under certain conditions. This is my ...

QUESTIONI'm in the process of transplanting an L77 from a 2012 Caprice 9C1 PPV [police pursuit vehicle] along with its 6L80E [six-speed, longitudinally mounted electronic automatic overdrive ...

General Motors said Monday that due to the global semiconductor chip shortage the U.S. automaker is building certain 2021 light-duty full-size pickup trucks without a fuel management module, hurting ...

In an effort to help meet more restrictive emissions standards, GM launched a technology in 2005 that deactivates engine cylinders during undemanding driving scenarios. Known by both Displacement on ...

This makes dominance of the ½-ton pickup truck category a true battleground for the manufacturers. Increased fuel economy ranks near the top of customer demands. Unlike their larger ¾-ton relatives ...