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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.
Engines built prior to April 1, 2006, contained AFM hardware; however, the mode was not enabled in the PCM, and thus the system was not functional. Engines built after this date also lacked any AFM hardware, and instead used a valley cover plate similar to the L20, until the debut of the L94 variants mentioned below.
The engines were also sold for marine and stationary applications. In a 1938 reorganization, Winton Engine Corporation became the GM Cleveland Diesel Engine Division, and GM's Detroit Diesel Engine Division began production of smaller (50–149 cu in (0.8–2.4 L) per cylinder) diesel engines. Locomotive engines were moved under the GM Electro ...
The base engine on lower trim levels is the 285-horsepower (213 kW; 289 PS), 4.3-liter EcoTec3 E85-capable V6 gasoline engine. Standard on mid-level trims is an all-new, 310-horsepower (231 kW; 314 PS), 2.7-liter turbocharged inline-four gasoline engine (thus being the smallest engine available on a GM full-size half-ton pickup), and features ...
The Korean-spec Tahoe is exclusively available in the High Country and Dark Night Edition trim levels only and is powered by the 6.2L L87 V8 petrol engine as its only engine option for that country. Just like with the Mexican-spec Chevrolet Tahoe, the Korean-spec Tahoe is not available with the Duramax l-6 diesel engine.
This engine family was updated in 1968 for the use of 2.45 in (62.2 mm) medium-sized journals. The first engine in this family was the small journal 327 in 1962 and the last being 2000s medium journal 350 in pickup trucks and commercial vehicles. The medium journal 350 was further developed into the Generation II LT1/4 350 in the early 1990s.
Engine Engine family Production Notes 169 cu in (2.8 L) I4 turbo-diesel DMAX Duramax I4 engine: 2017–2022 (LWN) Replaced 6.6L V8 turbo-diesel First inline-4 in full-size van since 1964 395 cu in (6.5 L) V8 turbo-diesel Detroit Diesel V8: 1996–2002 (L65) First GM van offered with turbocharged diesel engine 404 cu in (6.6 L) V8 turbo-diesel
The first recall was announced on February 7, 2014, and involved about 800,000 Chevrolet Cobalts and Pontiac G5s. [1] On March 31, GM announced it was going to recall over 1.5 million more cars of six different models, due to faulty power steering. Of these, over 1.3 million were in the United States, and three of the models were also involved ...