Does Chevy still use AFM?

Does Chevy still use AFM?
Yes, Chevy still uses Active Fuel Management (AFM) in some of its vehicles. AFM is a GM engine technology that disables certain cylinders to conserve fuel when full power is not needed. It uses a combination of hydraulic valves and sophisticated software to switch off cylinders and seamlessly reengage them when more power is required. However, it’s worth noting that AFM has had some reliability issues, including noisy lifters and oil consumption. In January 2018, GM announced an improved version of AFM called Dynamic Fuel Management (DFM), which shuts off any number of cylinders in a variety of combinations to maximize fuel economy. DFM was initially released in Chevy Silverado trucks and has been well-received, with the 6.2L V8 engine incorporating the technology being named one of Ward’s 10 Best Engines for 2019. So, while AFM is still used in some Chevy vehicles, there is also a newer and improved version called DFM.

What are the disadvantages of cylinder deactivation?

If the engine is equipped with a cylinder deactivation system, we face a new potential failure mode. Increasing the valvespring pressure or just increasing the amount of lifter movement at speed may be enough to overwhelm the oil pressure keeping the lifter in full operation.

Does the 5.3 EcoTec3 have AFM?

5.3L EcoTec3 V8
The 5.3L V8 engine is available with Dynamic Fuel Management™ (DFM) or Active Fuel Management™ (AFM).

Is Chevy cylinder deactivation bad?

When functioning correctly, cylinder deactivation should not cause long-term engine damage. However, problems left unaddressed, such as misfires or sensor issues, can potentially lead to engine damage over time.

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.

Does Chevy still do AFM?

Meanwhile, the 2014 Chevy Silverado overhaul (K2 platform) had AFM on all three engines. Now, however, with the introduction of the fully refreshed 2022 Silverado, only one engine is outfitted with AFM, namely the turbocharged 2.7L I4 L3B gasoline engine.

Does 2024 Silverado have cylinder deactivation?

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.

How common is GM lifter failure?

GM is using known defective lifters in their 6.2 motors. It is way more than 4%. I have had 2 now and know friends that ALL have had their motors fail at low miles.

Is the 2024 Chevy 5.3 a good engine?

The heart of any truck is its engine, and the 2024 Chevrolet Silverado boasts V-8 engines that are nothing short of extraordinary. With options such as a 5.3L V-8 delivering 355 horsepower and a robust 6.2L V-8 offering an exhilarating 420 horsepower, these engines are designed to conquer any challenge with ease.

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.