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Which GM engines skip AFM? Here’s the list

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 ...

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 ...
The Anderson Independent-Mail

TOPDON USA’s AFM Disabler Enhances Drivability, Reduces Risk of Engine Damage for GM Vehicles with AFM, DFM Systems

TOPDON USA’s AFM Disabler works with many GM vehicles powered by V6 and V8 engines with Active Fuel Management (AFM) or Dynamic Fuel Management (DFM) systems. TOPDON’s new AFM Disabler is a low-cost ...
Jalopnik

GM's AFM And DFM Often Get Blamed For Lifter Failure, So Let's Explore How They Work

The logic behind both active fuel management (AFM) and dynamic fuel management (DFM) starts with the simple observation that most drivers "carry more engine" than they need most of the time. A V8 ...
AOL

Can An Active Fuel Management (AFM) Disabler Cause Engine Damage?

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.