What is active fuel management (AFM) and why can it cause lifter noise?

General Motors' active fuel management system is an ingenious piece of engineering. Here's what it does, how it works, and why some hate it.
autoevolution

Disabling Your V8 Truck’s AFM or DFM Just Got Easier Thanks to Range Technology

Exactly two years ago on May 18th, Chevrolet published a press release about how the 2019 Silverado "leads the industry with Dynamic Fuel Management." The problem with it, however, is that many (yes, ...
GM Authority

Here Are The 2021 Chevy Silverado, GMC Sierra Models That Will Keep AFM/DFM

As GM Authority recently covered, General Motors is currently building units of the 2021 Chevy Silverado 1500 and 2021 GMC Sierra 1500 light-duty pickup trucks without Active Fuel Management (AFM) or ...
GM Authority

GM To Offer $50 Credit On Chevy Silverado And GMC Sierra Without AFM/DFM

General Motors is starting to build light-duty Chevy Silverado 1500 and GMC Sierra 1500 pickup trucks without Active Fuel Management (AFM) and Dynamic Fuel Management (DFM) technologies as a result of ...