Does Chevy still use Active Fuel Management?

Introduction
Yes, Chevy still uses Active Fuel Management (AFM) in some of their vehicles. AFM is a technology developed by General Motors that allows a V6 or V8 engine to deactivate half of its cylinders under light-load conditions to improve fuel economy. However, it’s important to note that AFM has been renamed to Dynamic Fuel Management (DFM) in recent models.
Determining if a Chevy Vehicle Has Active Fuel Management
To determine if a Chevy vehicle has Active Fuel Management, there are a few methods you can use:
1. Check the window sticker: The window sticker of the vehicle should indicate whether it has AFM or DFM.
2. Look for specific parts or components: AFM/DFM-equipped engines have unique parts such as AFM towers, valley covers, unique oil lifters, notched lifter guides, high-capacity oil pumps, oil pressure relief valves, and special camshafts.
3. Check the best MPG calculation: Another way to determine if a vehicle has AFM/DFM is by looking at the best MPG calculation. If the vehicle consistently achieves high fuel efficiency, it may indicate the presence of AFM/DFM.
Chevy Vehicles and Engines with Active Fuel Management
Chevrolet has added Active Fuel Management to various vehicles, including the Camaro, Tahoe, TrailBlazer, Avalanche, Silverado, Suburban, and Impala. AFM/DFM is also present in other GM products and engines shared by different vehicles.
Conclusion
In summary, Chevy still uses Active Fuel Management (now called Dynamic Fuel Management) in some of their vehicles. To determine if a specific Chevy vehicle has AFM/DFM, you can check the window sticker, look for specific parts, or consider the best MPG calculation.

Can GM AFM be turned off?

The Range AFM/DFM Disabler allows your V6 or V8 GM vehicle to run in full cylinder mode at all times, preventing the Active and Dynamic Fuel Management systems from dropping cylinders. Our patented technology is the only product that will disable Active or Dynamic Fuel Management without reprogramming the factory ECU.

Does GM still use AFM?

General Motors added Active Fuel Management to the following vehicles sold under the Chevrolet brand. That said, AFM is present in other GM products, including various Cadillacs and numerous vehicles that share the following engines.

Does disabling DFM prevent lifter failure?

a disabler doesnt remove the problem, it only eliminates the dropping out of the cylinder. i do not think the issue is as much of a COKING problem like earlier years, but rather a metallurgical issue due to poor base materials. the lifters can still fail with a disabler.

Can DFM be turned off?

The Range AFM/DFM Disabler allows your V6 or V8 GM vehicle to run in full cylinder mode at all times, preventing the Active or Dynamic Fuel Management system from dropping cylinders. Our patented technology is the only product that will disable Active or Dynamic Fuel Management without reprogramming the factory ECU.

What is the cylinder deactivation on a 5.3 2024 Silverado?

The 2024 Chevrolet engine comes equipped with an innovative technology that helps to reduce engine friction while increasing torque. This technology, known as cylinder deactivation, ensures that only the required number of cylinders are operating at any given time.

Does the 2024 5.3 have DFM?

Both V8 engines (5.3 and 6.2 liters) are equipped with something called Dynamic Fuel Management. Essentially a cylinder deactivation system, DFM flaunts 17 different operating modes.

What year 5.3 has cylinder deactivation?

General Motors ever popular 5.3L active fuel management was used in majority of trucks and SUV’s from 2007-2014. This was one of GM’s first designs utilizing cylinder deactivation and active fuel management.

How do you turn off the AFM on a Silverado?

So we have the follow-up on display. So let me go through the steps. And show you exactly what we need to do to turn off the displacement. Our active fuel management as you call it.

Which Silverado engines have AFM?

The Silverado LT and RST come standard with the 2.7L Turbo with Active Fuel Management engine. This engine produces 310 HP and provides up to 9,300lbs. of towing capacity. The LT and RST also have an available 5.3L V8 with Dynamic Fuel Management engine.

Why do AFM lifters fail?

We have found that most lifter faults are caused by oil pressure issues, or control issues. The AFM activation and deactivation is controlled by the Valve Lifter Oil Manifold or VLOM.