When did Chevy start using Active Fuel Management?

Chevy’s Active Fuel Management Introduction
Chevy started using Active Fuel Management (AFM) in their vehicles in 2007 with the GMT900 trucks. The 5.3 and 6.0 engines had AFM, while the 4.3, 4.8, and 6.2 engines did not have AFM at that time. In 2014, all motor choices in Chevy vehicles had AFM. In 2010, Chevy implemented a change to address some oil consumption issues related to AFM.
How to Identify Active Fuel Management
To determine if a vehicle has Active Fuel Management, you can look for certain indicators. In V8 engines, AFM switches off cylinders number 1, 7, 4, and 6. In V6 engines, the system deactivates cylinders 3 and 6. For LTA and LT2 engines, cylinder deactivation occurs on cylinders 2, 3, 5, and 8.
Additional Information
Active Fuel Management (AFM) is a technology developed by General Motors (GM) that allows a V6 or V8 engine to deactivate half of its cylinders under light-load conditions to improve fuel economy. It was first introduced as Displacement on Demand (DoD) in 2005 and later renamed to Active Fuel Management. AFM was used in various GM engines, including the GM Small Block Gen IV engine family, the first-generation GM EcoTec3 engine family, the second-generation GM High-Feature V6 DOHC engine family, and the first-generation High-Feature V8 DOHC engine family. AFM was implemented in several Chevy vehicles, such as the Silverado, Tahoe, Suburban, Camaro, and Corvette.
Please note that the information provided is based on the search results and may not include the most recent updates.

Does AFM cause engine damage?

However, the design is not without its flaws. The system designed to shut off half the cylinders using special lifters, also causes irreparable damage to the camshaft and lifter due to very common failures.

Can you turn off GM Active Fuel Management?

RA003 AFM Disabler Device
Simply Plug the Module into Your OBD-II Port and It Instantly Disables the AFM or DFM System. The Power and Control You Need in Any Situation. Our AFM/DFM Disabler Does Not Reprogram the Factory ECU.

Can GM AFM be turned off?

You will need to turn off the AFM system using a computer programmer or custom tuning. It’s a little more work, but it’s recommended that you plug the pressure relief valve in the oil pan. It is also recommended that you switch to a standard-volume oil pump.

What years did GM have Active Fuel Management?

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. LC9, LY5, LC9, LH6 and LMG were the most popular engine codes for this V8 5.3L.

What year 5.3 to stay away from?

The bad years: 2007-2014
There are eight different variations of the Vortec 5.3-liter V8 in the fourth-generation small-block V8 family. All suffer from the same issues, which can be summed up in two three-letter acronyms: AFM and PCV.

When did Chevy start using cylinder deactivation?

2005
General Motors first introduced its Active Fuel Management cylinder deactivation system in 2005. According to Lee, “Dynamic Fuel Management is a natural progression of the technology.”

When did GM start using DOD?

2005
In response to increasingly restrictive fuel economy standards, General Motors introduced Displacement on Demand (marketed as Active Fuel Management) in Gen IV small-block LS engines in 2005, and by 2007 most GM cars and trucks were equipped with DOD.

Which Silverado engines have AFM?

The 2021 Chevrolet Silverado – An Engine for Every Need

• 2.7L Turbo with Active Fuel Management.
• 4.3L EcoTec3 V6 with Active Fuel Management.
• 5.3L EcoTec3 V8 with Active Fuel Management.
• 5.3L V8 with Dynamic Fuel Management.
• 6.2L V8 with Dynamic Fuel Management.
• Duramax 3.0L Turbo-Diesel.
• Duramax 6.6L Turbo-Diesel V8.

How do I know if my truck has AFM?

Here’s how to tell if a vehicle has Active Fuel Management. One of the easiest ways to tell is from the driver’s seat. If you want to determine if the V6 or V8 GM vehicle you are in has the tech, simply look for the readout on the digital screen below the tachometer.

Does cylinder deactivation damage the engine?

Let’s use a example of a V-8 engine that deactivate to 4-cylinders , even if the load is light, 4 cylinders are doing the work that 8 cylinders normally would do. My answer is yes, deactivation of cylinders do speed up engine wear in the active cylinders , but I think it’s still Beneficial to use.