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HYDRA-MATIC 6L80 6-speed Transmission Repair Manual

Other Transmission

The new Hydra-matic 6L80 (6 Speed) is a fully automatic, six speed, rear wheel drive, electronic controlled transmission that features clutch to clutch shifting. It was fust introduced in the 2006 Corvette with the 6.0L engine. Cadillac STSV/XLRV with the 4.4L engine, and is scheduled for Pick-ups in 2007.

Has shown in Figure 1. It consists primarily of a four element torque converter, two planetary gear sets, five clutch packs, one sprag and a hydraulic pressurization and control system. Two planetary gear sets provide the six forward gear ratios and reverse. Changing gear ratios is folly automatic and is accomplished through the use of a Transmission Control Module (TCM), that is located within the transmission. The TCM receives and monitors various electronic sensor inputs, and uses this information to shift the transmission at the optimum time.

The TCM commands shift solenoids and variable bleed Clutch Pressure Control (CPC) solenoids within the transmission to control shift timing. The TCM controls shift feel through the CPC solenoids. The TCM also controls the apply and release of the torque converter clutch which allows the engine to deliver the maximum fuel efficiency without sacrificing vehicle performance. This manual contains procedures necessary to diagnose, overhaul and/or repair the new 6L80 (6 Speed) transmission from General Motors.

CONTENTS

  • GENERAL DESCRIPTION AND OPERATION
  • SHIFT QUADRANT DESCRIPTION
  • INTERNAL COMPONENT LOCATION AND APPLICATION CHART
  • SOLENOID APPLICATION CHART
  • ELECTRONIC COMPONENT LOCATIONS AND DESCRIPTION
  • PARTIAL WIRE SCHEMATIC
  • DIAGNOSTIC TROUBLE CODE (DTC) IDENTIFICATION
  • CHECKBALL LOCATIONS AND FUNCTION
  • OIL PASSAGE IDENTIFICATION
  • IDENTIFICATION TAG LOCATION AND INFORMATION
  • TRANSMISSION FLUID REQUIREMENTS
  • CONVERTER HOUSING IDENTIFICATION
  • TRANSMISSION DISASSEMBLY
    • COMPONENT REBUILD SECTION
    • TRANSMISSION CASE ASSEMBLY
    • OIL PUMP ASSEMBLY
    • 4-5-6 CLUTCH HOUSING ASSEMBLY
    • 1-2-3-4 AND 3-5 REVERSE CLUTCH HOUSING ASSEMBLY
    • CENTER SUPPORT ASSEMBLY
    • LOW SPRAG ROTATION
    • 1-2-3-4 CLUTCH HUB AND SHAFT ASSEMBLY
    • 2-6 AND 3-5 REVERSE CLUTCH HUB AND SHAFT ASSEMBLY
    • REAR CARRIER AND OUTPUT SHAFT ASSEMBLY
    • VALVE BODY AND SOLENOID BODY/TCM ASSEMBLY
    • EXTENSION HOUSING ASSEMBLY
  • TRANSMISSION FINAL ASSEMBLY
  • BOLT CHART FOR IDENTIFICATION
  • SPECIAL TOOLS AND EQUIPMENT
  • GENERAL SPECIFICATIONS
  • LINE PRESSURE SPECIFICATIONS AND TAP LOCATION
  • TORQUE SPECIFICATIONS

Language: English
Format: PDF
Pages: 108

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