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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.
In 1968, the engine had the chrome covers, but without the Chevrolet name, connected to a PCV valve and a chrome 14 in × 3 in (355.6 mm × 76.2 mm) drop-base open-element air cleaner assembly fitted with a crankcase breather on a 780 cu ft/min (22 m 3 /min) vacuum secondary Holley 4-Bbl carburetor. 1969 Corvette and 1970 Z/28 engines were also ...
The 3.9-liter 4B/4BT/4BTA Cummins is categorized under the B Engine family alongside the 5.9-liter 6B/6BT/6BTA Cummins diesel engines. The 3.9 is an inline four-cylinder, either naturally aspirated (4B) or turbodiesel (4BT/4BTA), which was popular for many step van applications including bread vans and other commercial vehicles. Additionally it ...
Like the Suburban, the Yukon XL also featured an independent rear suspension, a 3.0-liter inline-six turbodiesel engine, and a top-shelf suspension option featuring air springs and magnetic-ride shocks, a standard 5.3-liter V8, an optional 420-horsepower (313 kW; 426 PS) 6.2-liter V8, and a 10-speed automatic transmission that is standard ...
For those who planned to go off-road in their Avalanche, a Z71 Off-Road package was available that added features such as off-road suspension, GM's AutoTrac full-time push-button four-wheel-drive system, all-terrain P265/70R17 white-lettered Goodyear tires, seventeen-inch alloy wheels, leather seating surfaces with waterproof accents, front ...
The intake and exhaust valves were located at the top of each combustion chamber. The valves themselves had shorter, 5/16" diameter stems, to allow for the more aggressive camshaft. [9] Intake valves had a port diameter of 1.92", while exhaust valves were 1.600", [8] with 60cc combustion chambers. Spark plugs were located at the peak of the ...
First-generation Chevrolet Silverado 2500HD (2001–02 Regular Cab) The GMT800 Silverado/Sierra 1500 and 2500 pickup trucks were released in August 1998 as 1999 models. The "classic" light-duty GMT400 C/K trucks continued to be produced for the first two years alongside the new models, and the Heavy-Duty GMT400 pickups (alongside the GMT400 SUVs) were continued until 2000, with the new GMT800 ...
MagneRide is an automotive adaptive suspension with magnetorheological damper system developed by the Delphi Automotive corporation, [1] [2] that uses magnetically controlled dampers, or shock absorbers, for a highly adaptive ride. As opposed to traditional suspension systems, MagneRide has no mechanical valves or even small moving parts that ...