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Learn about the history, standards and applications of on-board diagnostics (OBD), a vehicle's self-diagnostic and reporting capability. OBD systems provide real-time data and trouble codes to detect and monitor emissions failures and other malfunctions.
OBD-II PIDs are codes used to request data from a vehicle, used as a diagnostic tool. Service 01 (Show current data) provides real-time information on engine and vehicle status, such as fuel trim, coolant temperature, and vehicle speed.
Fremont Assembly was a General Motors automobile factory in Fremont, California, in the San Francisco area, replacing the older Oakland Assembly.Groundbreaking for the plant occurred in September 1961, and the plant produced its first vehicle on May 1, 1963.
The 3800 series is a family of OHV V6 engines developed by Buick and used in various GM vehicles since 1962. The engine has a displacement of 3.8 L (231 cu in) and a cylinder bore of 96.5 mm (3.8 in).
NUMMI was a car manufacturing company in Fremont, California, owned by General Motors and Toyota from 1984 to 2010. It was known for its transformation from a troubled GM plant to a successful Toyota plant using the Toyota Production System.
Learn about the origins, evolution, and global operations of one of the world's largest car and truck manufacturers. From its founding in 1908 by William C. Durant to its current brands, products, and challenges, this article covers the key milestones and events of GM's history.
A check engine light or malfunction indicator lamp (MIL) is a tell-tale that a computerized engine-management system indicates a problem with the vehicle. The MIL can have different causes and effects, such as a loose gas cap, worn spark plugs, or a faulty oil valve.
This web page lists most transmissions produced or used in General Motors (GM) vehicles, including automatic and manual types. It covers the history, design, and applications of different GM transmission models, such as Hydramatic, Turbo-Hydramatic, and Hydra-Matic.