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A tale of deactivating cylinders: After 25 years GM finally succeeded with its Active Fuel Management

For the history-minded, there's a short, interesting article on AutoWeek's website about GM's early difficulties and eventual success with their cylinder deactivation system. The article starts with GM's failed attempt at rolling out their first production engine with the system installed under the Cadillac badge called V8-6-4 in 1981. The system had so many problems that Cadillac dealers often disconnected it because there was no known fix. Chris Meagher, a GM engineer who worked on the V8-6-4 project, also worked on the successful cylinder ... Read more →

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A tale of deactivating cylinders: After 25 years GM finally succeeded with its Active Fuel Management 3 years ago on Autoblog Green

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