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Active Fuel Management (formerly known as displacement on demand (DoD)) is a trademarked name for the automobile variable displacement technology from General Motors.It allows a V6 or V8 engine to "turn off" half of the cylinders under light-load conditions to improve fuel economy.
The Cadillac High Technology Engine was a V8 engine produced by the Cadillac division of General Motors from 1982 to 1995.. While the High Technology engine was being developed, due to higher Corporate Average Fuel Economy standards being phased in by the United States government, Cadillac introduced a variant of their traditional V8 engine with the first usage of cylinder deactivation for ...
In 2005, GM introduced their Active Fuel Management cylinder deactivation system (in the Generation IV small-block) which, similar to Chrysler's MDS, switched off half of the cylinders. In 2018 GM introduced an improved system called Dynamic Fuel Management [ 16 ] that shuts off any number of cylinders, in a variety of combinations, depending ...
The federal investigation covers select Chevrolet, Cadillac, and GMC trucks and SUVs built with the 6.2-liter L87 V-8 between the 2019 and 2024 model years. ... This, of course, is a problem. As ...
The GM High Feature engine (also known as the HFV6, and including the 3600 LY7 and derivative LP1) is a family of modern DOHC V6 engines produced by General Motors. The series was introduced in 2004 with the Cadillac CTS and the Holden Commodore (VZ). It is a 60° 24-valve design with aluminum block and heads and sequential multi-port fuel ...
Chrysler's Multi-Displacement System (MDS) is an automobile engine variable displacement technology. It debuted in 2005 on the 5.7 L modern Hemi V8.Like Mercedes-Benz's Active Cylinder Control, General Motors' Active Fuel Management, and Honda's Variable Cylinder Management, it deactivates four of the V8's cylinders when the throttle is closed or at steady speeds.
The recall in the U.S. covers certain Chevrolet Silverado and GMC Sierra 1500, 2500, and 3500 pickups from the 2020 through 2022 model years. Also included are the 2021 Cadillac Escalade, GMC ...
Another common problem with the 2001–2006 5.3L engines was cracking cylinder heads. This is commonly called the "Castech Head" failure. GM issued a Technical Service Bulletin on this failure to help service technicians identify the problem. The head casting number (which can be viewed from the passenger side of the vehicle just in front of ...