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Does the Chevy Avalanche have an AFM?

Yes, the Chevrolet Avalanche does have an Active Fuel Management (AFM) system. The Avalanche is a full-size pickup truck that was produced by Chevrolet from 2001 to 2013, and the AFM system was a feature on many of the Avalanche models during that time period.


What is Active Fuel Management (AFM)?


Active Fuel Management, also known as Cylinder Deactivation, is a technology used in some engines to improve fuel efficiency. It works by temporarily shutting off fuel and ignition to some of the engine's cylinders when they are not needed, such as during light load or cruising conditions. This reduces the engine's workload and can improve fuel economy by up to 6%.


How Does AFM Work in the Chevy Avalanche?


The Avalanche's V8 engines, such as the 5.3L and 6.0L options, were equipped with the AFM system. When the engine is operating under light load conditions, the AFM system can deactivate up to four of the engine's eight cylinders, allowing the remaining four cylinders to operate more efficiently. This helps to improve fuel economy without sacrificing performance.


The AFM system is seamless and transparent to the driver, automatically engaging and disengaging the cylinder deactivation as needed based on driving conditions. Drivers may notice a slight change in engine sound when the system is active, but otherwise it operates transparently.


Benefits of AFM in the Chevy Avalanche



  • Improved Fuel Economy: The cylinder deactivation feature of AFM can improve fuel efficiency by up to 6% compared to a non-AFM engine. This can result in significant fuel savings over the life of the vehicle.

  • Maintained Performance: Even with some cylinders deactivated, the Avalanche's V8 engine still provides ample power and acceleration when needed. The transition between 4-cylinder and 8-cylinder operation is seamless.

  • Reduced Emissions: By operating more efficiently, the AFM-equipped engine produces fewer emissions, making the Avalanche more environmentally friendly.


Overall, the inclusion of Active Fuel Management technology in the Chevy Avalanche was a key feature that helped improve the truck's fuel economy without compromising its performance or capability.

Kevin's Auto

Kevin Bennett

Company Owner

Kevin Bennet is the founder and owner of Kevin's Autos, a leading automotive service provider in Australia. With a deep commitment to customer satisfaction and years of industry expertise, Kevin uses his blog to answer the most common questions posed by his customers. From maintenance tips to troubleshooting advice, Kevin's articles are designed to empower drivers with the knowledge they need to keep their vehicles running smoothly and safely.