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It allows a V6 or V8 engine to "turn off" half of the cylinders under light-load conditions to improve fuel economy. Estimated performance on EPA tests shows a 5.5–7.5% improvement in fuel economy. [1] GM's Active Fuel Management [2] technology used a solenoid to deactivate the lifters on selected cylinders of a pushrod V-layout engine.
Starting in 2009, it was also available in the Chevrolet Silverado and GMC Sierra, as the L9H, with power ratings of 403 hp (301 kW) and 417 lb⋅ft (565 N⋅m). 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.
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 ...
The work truck series is meant for GM's commercial fleet customers and will not be sold to regular consumers initially. The Silverado EV WT will arrive this spring with the 450-mile version ...
The 6.2L V8 was given wider availability, now being optional on LT and SLE Extended and Crew Cabs, completely supplanting the light-duty Vortec 6000 V8 in the process. The new Z71 Appearance Package was optional on LT and LTZ, which included body-color grille and front fascia, body-color door handles and mirror caps, unique Z71 bed decals ...
The first generation of the Chevrolet Silverado is a series of trucks manufactured by General Motors from 1998 until 2007 under the Chevrolet brand and also as the GMC Sierra. Built on the new GMT800 platform, the Silverado/Sierra 1500 and 2500 pickup trucks were first released in August 1998 as 1999 models.
Patrick Mahomes is batting down claims of preferential treatment as the Kansas City Chiefs move ever-closer to a Super Bowl berth.. With his team being one win away from the title game and after a ...
For 1997, General Motors do Brazil replaced the 10/20 series (a locally-engineered derivative of the Rounded-Line generation introduced in 1985) with the GMT400-based Silverado. [32] The Silverado was offered with three engines: a Maxion 4.0 L inline-4 diesel, a 4.2 L MWM inline-6 turbodiesel, and a GM-sourced 4.1 L gasoline inline-6.