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a torque converter with ECCC, the pressure plate does not always fully lock to the torque Vane-type fluid pump assembly 1-2-3-4 and 3-5 Reverse clutch assembly Input sun gear and carrier assembly 4-5-6 clutch assembly with turbine shaft 4-5-6 clutch hub assembly 1-2-3-4 clutch hub assembly 2-6 and 3-5 reverse clutch hub assembly Center support assembly, with 2-6 clutch assembly, and low and Reverse clutch assembly Low clutch sprag assembly A double planetary output carrier assembly Output shaft assembly Control valve body assembly The electrical components of the 6-Speed RWD are as follows: Input and output speed sensor assembly Manual shift shaft position switch Control solenoid valve assembly, which contains the following components: Transmission control module (TCM) 5 variable bleed line pressure control (PC) solenoids Transmission fluid pressure (TFP) switch assembly Torque converter clutch (TCC) pressure control solenoid 2 shift solenoids For more information, refer to Electronic Component Description. TRANSMISSION ADAPTIVE FUNCTIONS The 6L80 transmission utilizes a line pressure control system during upshifts to compensate for
2008 Chevrolet Silverado 1500 2008 TRANSMISSION Automatic Transmission - 6L50/6L80/6L90 - Cab & Chassis Sierra, Cab & Chassis Silverado, Sierra & Silverado
the normal wear of transmission components. As the apply components within the transmission The purpose of the adapt function is to automatically compensate the shift quality for the various TRANSMISSION INDICATORS AND MESSAGES The following transmission-related indicators and messages may be displayed on the Instrument "TRANSMISSION HOT IDLE ENGINE" This message is displayed when the TCM detects a transmission fluid temperature (TFT) "SERVICE TRANSMISSION" This message displays when there is a problem with the transmission. ELECTRONIC COMPONENT DESCRIPTION
2008 Chevrolet Silverado 1500 2008 TRANSMISSION Automatic Transmission - 6L50/6L80/6L90 - Cab & Chassis Sierra, Cab & Chassis Silverado, Sierra & Silverado
Fig. 200: Control Solenoid (W/Body and TCM) Valve Assembly The control solenoid (w/body and TCM) valve assembly contains the following components: Callout Component Name 1 Line Pressure Control (PC) Solenoid 2 Torque Converter Clutch (TCC) Pressure Control (PC) Solenoid 3 Shift Solenoid (SS) 2 4 16 Pin Connector 5 Pressure Control (PC) Solenoid 3 6 Transmission Fluid Pressure (TFP) Switch 5 7 Pressure Control (PC) Solenoid 4 8 Pressure Control (PC) Solenoid 2 9 Transmission Fluid Pressure (TFP) Switch 3 10 Transmission Fluid Pressure (TFP) Switch 1 11 Transmission Fluid Pressure (TFP) Switch 4 12 Pressure Control (PC) Solenoid 5 13 Shift Solenoid (SS) 1
2008 Chevrolet Silverado 1500 2008 TRANSMISSION Automatic Transmission - 6L50/6L80/6L90 - Cab & Chassis Sierra, Cab & Chassis Silverado, Sierra & Silverado
Transmission control module (TCM) Clutch pressure control solenoids (Clutch PC Sol) Shift solenoids (SS) Line pressure control solenoid (Line PC Sol) Torque converter clutch pressure control solenoid (TCC PC Sol) Transmission fluid temperature sensor (TFT Sensor) TCM temperature sensor Power-up temperature sensor Transmission fluid pressure switches (TFP Sw) These components are not serviced separately. The control solenoid (w/body and TCM) valve INTERNAL MODE SWITCH (IMS) Fig. 201: Identifying Internal Mode Switch (IMS) The transmission manual shift shaft switch assembly is a sliding contact switch attached to the
2008 Chevrolet Silverado 1500 2008 TRANSMISSION Automatic Transmission - 6L50/6L80/6L90 - Cab & Chassis Sierra, Cab & Chassis Silverado, Sierra & Silverado
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