Description: Location-Diesel Fuel Injector Pump. Express, savana. 6.6l diesel. Helps provide constant fuel pressure to the injectors Assists in cold engine starts Helps maintain stable engine idle This GM Genuine Part is designed, engineered, and tested to rigorous standards and is backed by General Motors

Description: Silverado, sierra. With dual turbo. This part requires programming and/or special setup procedures GM Service Information describes the procedures and special tools needed to ensure proper operation in the vehicle Atomizes fuel into the engine's intake manifold or cylinders, as part of the fuel and engine management system Allows for a quick throttle response Assists in cold engine starts