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1991–2007 Chevrolet C/K/Chevrolet Silverado/GMC Sierra 2500 and 3500; 1991–2007 Chevrolet/GMC Suburban/GMC Yukon XL 1500 and 2500; 1991–2009 Chevrolet Van/Chevrolet Express/GMC Savana 2500 and 3500; 1995–1999 Chevrolet Tahoe/GMC Yukon 6.5L Diesel; 2002–2006 Chevrolet Avalanche 2500; 1992–2006 Hummer H1
While controlled or partially controlled by the Powertrain Control Module (PCM), third gear is used as a failsafe gear and default operating gear during unexpected conditions. Without computer control, the transmission will automatically hydraulically shift from first gear into second gear based on input shaft RPM.
For the 2007 model year, the Sierra Denali shares the same billet grille from the other Denali models, and also has the same dash as the 2007 SUVs. The 2007 Sierra Denali was initially the only half-ton pickup that had a 6.2L V8 engine with 403 hp (301 kW) and 417 lb⋅ft (565 N⋅m) of torque coupled to a six-speed automatic transmission.
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 previous (for 2001 only) C3 model of the GMC Sierra trucks were renamed Denali in late 2001 as a 2002 model. The 2002–2004 Sierra Denali was equipped standard with a 325 hp 6.0 L V8, all-wheel-drive, and Quadrasteer, the 4-wheel steering system developed by General Motors. No 5.3 L V8 option was offered (until the 2014 model year with the ...
The 6L 50 (and similar 6L 45) is a 6-speed longitudinally-mounted automatic transmission produced by General Motors.It is very similar in design to the larger GM 6L 80 and 6L 90, and is produced at GM Powertrain plants in Toledo, Ohio; Silao, Guanajuato, Mexico; and by the independent Punch Powerglide company in Strasbourg, France.
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A power-train control module, abbreviated PCM, is an automotive component, a control unit, used on motor vehicles. It is generally a combined controller consisting of the engine control unit (ECU) and the transmission control unit (TCU). On some cars, such as many Chryslers, there are multiple computers: the PCM, the TCU, and the Body Control ...
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