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Cylinder heads revised to accommodate lower compression and reduced cylinder firing pressure; Maximum injection pressure increased from 23,000 psi (1,585.8 bar) to more than 26,000 psi (1,792.6 bar) Fuel delivered via higher-pressure pump, fuel rails, distribution lines and all-new, seven-hole fuel injectors
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 L3B was first used in the Chevrolet Silverado and GMC Sierra, with an output of 310 hp (231 kW) at 5600 RPM and 348 lb⋅ft (472 N⋅m) at 1500 RPM.
The Chevrolet big-block engine is a series of large-displacement, naturally-aspirated, 90°, overhead valve, gasoline-powered, V8 engines that was developed and have been produced by the Chevrolet Division of General Motors from the late 1950s until present. They have powered countless General Motors products, not just Chevrolets, and have been ...
1988: The California Air Resources Board (CARB) requires that all new vehicles sold in California from 1988 onward have some basic OBD capability (such as detecting problems with fuel metering and Exhaust gas recirculation.) [7] [8] These requirements are generally referred to as "OBD-I", though this name is a retronym applied after the ...
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The L84 is one of two 5.3L V8s available in the 4th generation Chevrolet Silverado and GMC Sierra. The L84 is distinguished from the L82 by the presence of the Dynamic Fuel Management System and is either available or standard on mid-to-high-level trims.