The Avalanche's performance is good for a truck, but car-buyers trading up for the first time might be disappointed. A stiffer frame and new suspension and steering systems, acquired during a 2007 redesign, help somewhat but reviewers still complain about an anemic engine and lackluster handling. Towing and hauling capabilities are high points, however.
The Avalanche comes one engine, a 5.3-liter V8 with Active Fuel Management. Most reviewers say the engine is fine for in-town driving, but its performance on the highway leaves feels slow. The Avalanche's engine features cylinder deactivation technology for increased fuel economy. It automatically shuts down four cylinders when they are not needed, like when the vehicle is cruising at speed or coasting. All engines are paired with a Hydra-Matic six-speed electronically controlled automatic transmission with overdrive that reviewers like.
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