What year do suburbans have cylinder deactivation?
Chevrolet Suburbans have had cylinder deactivation technology available since the 2019 model year. This feature, also known as Active Fuel Management (AFM), allows the engine to temporarily shut off some of its cylinders under light load conditions to improve fuel efficiency.
What is Cylinder Deactivation?
Cylinder deactivation is a fuel-saving technology that temporarily disables some of an engine's cylinders when they are not needed, such as during highway cruising or light-load conditions. This reduces the engine's displacement and decreases the amount of fuel consumed, leading to improved fuel economy.
In the case of the Chevrolet Suburban, the 5.3-liter V8 engine can deactivate up to four of its eight cylinders when the vehicle is operating under light loads. When more power is needed, the deactivated cylinders are quickly re-engaged to provide the full output of the engine.
When Was Cylinder Deactivation Introduced in Suburbans?
Chevrolet first introduced cylinder deactivation technology, branded as Active Fuel Management (AFM), in the Suburban starting with the 2019 model year. This allowed the large SUV to achieve better fuel efficiency without sacrificing performance.
- The 2019 Chevrolet Suburban with the 5.3-liter V8 engine was the first model year to offer cylinder deactivation.
- Prior to 2019, Suburbans did not have this fuel-saving technology available.
- Cylinder deactivation has continued to be an option on Suburban models through the present day.
By selectively shutting off cylinders when they are not needed, the Suburban's engine can operate more efficiently and deliver improved fuel economy, especially during highway driving and other light-load conditions.
