Wrenching With Kenny on MSN

This failed AFM lifter caused more damage than expected

Replacing a failed AFM lifter and pushrod on a 5.3 engine while uncovering the full extent of the problem. #EngineRepair ...

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

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

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.
Hot Rod

Pit Stop: Deleting LS AFM; Is VVT Good for Performance?

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 ...
SlashGear

What Does An AFM Disabler Do And Does It Cause Engine Problems?

General Motors's Active Fuel Management (AFM) technology utilizes hydraulic valves, solenoids, and advanced software to shut down half of the cylinders in a V8 or V6 engine to save fuel. The system ...