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An updated 4L60E, the 4L65E (RPO M32), was phased in the 2001 model year when coupled behind the 6.0 Vortec. Five-pinion front and rear planetaries, along with an additional 3/4 clutch allowing 7 clutches in the input housing and induction hardened input shaft assembly, were improved to withstand up to 380 ft⋅lb (520 N⋅m) of torque.
A Hydra-Matic 4L80 transmission at the Ypsilanti Automotive Heritage Museum The 4L80-E ( RPO MT1) is rated to handle engines with up to 440 ft·lbf (597 N·m) of torque. [ 2 ] The 4L80-E is rated to a maximum GVWR of 18,000 lb, depending on the axle and vehicle.
For the 2017 model year, Chevrolet made upgraded changes to the Tahoe. New additions include the teen driver feature, the App Store feature, a rear seat reminder, and low speed forward automatic braking. Two new colors, Blue Velvet and Pepperdust Metallic, were added to replace four colors. The 22-inch wheels option was expanded to three, and ...
The 1992–93 LT1s used speed density fuel management, batch-fire fuel injection and a dedicated Engine Control Module (ECM). In 1994 the LT1 switched to a mass airflow sensor and sequential port injection. A new, more capable computer controlled the transmission as well as the engine and got a new name: Powertrain Control Module (PCM). Where ...
A transmission control unit (TCU), also known as a transmission control module (TCM), or a gearbox control unit (GCU), is a type of automotive ECU that is used to control electronic automatic transmissions. Similar systems are used in conjunction with various semi-automatic transmissions, purely for clutch automation and actuation.
The 2017 model year Chevrolet Suburban received upgraded changes after it went on sale in August 2016. The level trims LS and LT are retained but the LTZ is renamed Premier, the latter serving as the equivalent to the Yukon XL Denali. The LS trims also saw the badged "LS" lettering removed.
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Due to a long-lasting downturn in sales of full-size trucks and SUVs in the United States (by as much as 30% through the first nine months of 2008), General Motors cancelled the next-generation full-size truck program in May 2008, including the replacements for the Chevrolet Tahoe and Suburban and their siblings at GMC and Cadillac. [4]