You'll Be Hard Pressed To Notice the Cylinder Deactivation - 2014 Chevrolet Silverado 1500 Z71 LT Crew Long-Term Road Test
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2014 Chevrolet Silverado 1500 Z71 LT Crew Long-Term Road Test

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2014 Chevrolet Silverado: You'll Be Hard Pressed To Notice the Cylinder Deactivation

December 27, 2013

2014 Chevrolet Silverado

Cylinder deactivation is an increasingly common technology used on bigger engines to help improve fuel economy. The idea here is to shut down half of the engine's cylinders under low demand situations (like cruising), thereby saving some fuel. This can cause extra vibration or noise, though, so automakers strive to make the systems as quiet and quick-reacting as possible.

Chevrolet's had its system (Active Fuel Management) on a lot of its V8s for a while now, and the version on our 2014 Chevrolet Silverado 1500 is impressively transparent to the driver.

There's an indicator in the gauge cluster (pictured above) that tells you whether the engine is running in V8 or V4 (four cylinder) mode. And honestly, I rarely notice when the truck is in V4 mode. Sure, if I focus on it, I can tell the subtle difference. In V4 mode there is a little more vibration that can be felt by my foot on the gas pedal, and the engine isn't quite as quick to react to inputs until it switches to V8 mode. But in normal driving, and with your attention paid elsewhere, our Silverado's cylinder deactivation is essentially invisible.

Brent Romans, Senior Automotive Editor @ 12,833 miles

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