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  2. List of GM transmissions - Wikipedia

    en.wikipedia.org/wiki/List_of_GM_transmissions

    GM's Automatic Safety Transmission (AST) was a semi-automatic transmission released in 1937. The first mass-produced fully-automatic transmission developed for passenger automobile use was the GM Hydramatic introduced in 1940. [1] The Hydramatic was a big success, and had been installed in the majority of GM models by 1950.

  3. Powerglide - Wikipedia

    en.wikipedia.org/wiki/Powerglide

    The Powerglide is a two-speed automatic transmission designed by General Motors.It was available primarily on Chevrolet from January 1950 [1] through 1973, although some Pontiac models also used this automatic transmission after the fire at the Hydra-Matic factory in 1953.

  4. On-board diagnostics - Wikipedia

    en.wikipedia.org/wiki/On-board_diagnostics

    Service / Mode $03 lists the emission-related "confirmed" diagnostic trouble codes stored. It either displays numeric, 4 digit codes identifying the faults or maps them to a letter (P, B, U, C) plus 4 digits. See #OBD-II_diagnostic_trouble_codes. Service / Mode $04 is used to clear emission-related diagnostic information. This includes clearing ...

  5. GM recalls nearly 500,000 pickup trucks and SUVs. Here's what ...

    www.aol.com/gm-recalls-nearly-500-000-160625464.html

    Drivers whose vehicles are affected by the transmission issue may experience harsh shifting ahead of any wheel problems, according to the automaker. ... GM models: 2020-2022 Chevrolet Silverado ...

  6. GM 4L80-E transmission - Wikipedia

    en.wikipedia.org/wiki/GM_4L80-E_transmission

    The 4L80-E (and similar 4L85-E) is a series of automatic transmissions from General Motors. Designed for longitudinal engine configurations, the series included 4 forward gears. It was the 4-speed electronically commanded evolution of the 3-speed Turbo-Hydramatic 400, first produced in October 1963. 4L80-Es were optioned only in Chevrolet/GMC ...

  7. GM 5L40-E transmission - Wikipedia

    en.wikipedia.org/wiki/GM_5L40-E_transmission

    The 5L40-E was designated in either "M82" (rear-wheel drive) or "MX5" (all-wheel drive) versions for service in BMW vehicles from 1999 model year until the design was superseded by (for BMW) the 6L45E and (for all others) the 6L50E series electronic automatic transmissions in 2007 . It is designed for service in vehicles up to 4000 lb (1814 kg ...

  8. GM must face big class action over faulty transmissions - AOL

    www.aol.com/news/gm-must-face-big-class...

    The 6th U.S. Circuit Court of Appeals said a lower court judge had discretion to let drivers sue in groups over Cadillac, Chevrolet and GMC vehicles equipped with 8L45 or 8L90 eight-speed ...

  9. GM 4T80 transmission - Wikipedia

    en.wikipedia.org/wiki/GM_4T80_transmission

    Transmission broadcast codes in 2005 for the ECCC transmission are 5ABN and 5MMN. [1] The 4T80-E is a hydramatic transmission and was developed for use with V8 front-wheel-drive cars, and at the time exclusively the Cadillac Northstar engine. [3] It was designed with extreme power handling capabilities at the time.