THM 4T60-E – ATSG (Automatic Transmission Service Group)

This Manual contains the procedures necessary to overhaul, repair or service the THM 4T60-E transaxle. The THM 4T60-E is a fully automatic front wheel drive transaxle that provides park, reverse, neutral and four forward speeds, with 4th gear being overdrive.

The shift pattern is controlled electronically with solenoids that receive a ground signal from the  Powertrain Control Module (PCM). The PCM will vary shift points, as it is constantly interpreting  numerous electronic signals from the various operational sensors located on the vehicle. The PCM also controls the application of the Torque Converter Clutch and the TCC apply feel electronically with  solenoids. Line pressure and shift feel are still controlled by the vacuum modulator system.

Applications:

  • 1994-1999 Buick Century
  • 1992-1997 Buick LeSabre 3800 V6, L27
  • 1991-1996 Buick Park Avenue V6 3.8L
  • 1991 Buick Reatta 3800 V6
  • 1993-1997 Buick Regal
  • 1991-1993 Buick Riviera 3800 V6
  • 1995-1996 Buick Riviera L67 & L36
  • 1994-1998 Buick Skylark
  • 1991-1993 Cadillac DeVille 4.9L V8
  • 1991-1992 Cadillac Fleetwood
  • 1991-1993 Cadillac Seville
  • 1991-1993 Cadillac Sixty Special
  • 1994–1996 Chevrolet Beretta/Corsica V6 3.1L
  • 1992–1996 Chevrolet Lumina APV V6 3.4L/3.8L
  • 1993–2000 Chevrolet Lumina
  • 1995-1999 Chevrolet Monte Carlo
  • 1997-1998 Chevrolet Venture
  • 1994-1998 Oldsmobile Achieva
  • 1994-1996 Oldsmobile Cutlass Ciera/Oldsmobile Ciera V6 3100 L
  • 1993-1997 Oldsmobile Cutlass Supreme
  • 1992-1997 Oldsmobile 88
  • 1991-1996 Oldsmobile 98
  • 1992–1998 Oldsmobile Silhouette V6 3.4L/3.8L
  • 1991-1992 Oldsmobile Toronado/Trofeo 3800 V6
  • 1992-1997 Pontiac Bonneville
  • 1994-1998 Pontiac Grand Am V6 3.1L
  • 1992-1996 Pontiac Grand Prix “GT” & GTP 3.4L V6 (LQ1 Motor)
  • 1992–1998 Pontiac Trans Sport V6 3.4L/3.8L

CONTENTS

  • COMPONENT APPLICATION AND SOLENOID CHART
  • GENERAL DESCRIPTION
  • ELECTRICAL COMPONENTS
  • WIRE SCHEMATICS
  • BODY TYPE AND CAR LINE IDENTIFICATION
  • DIAGNOSTIC TROUBLE CODE DESCRIPTION
  • LINE PRESSURE TEST
  • OIL PASSAGE IDENTIFICATION
  • TRANSAXLE DISASSEMBLY
  • COMPONENT REBUILD SECTION
    • TRANSAXLE CASE ASSEMBLY
    • FINAL DRIVE ASSEMBLY
    • FINAL DRIVE UPDATES AND CHANGES
    • IDENTIFICATION TAG INFORMATION
    • TRANSAXLE IDENTIFICATION BY MODEL AND RATIOS
    • STRUCTURAL SIDE COVER IDENTIFICATION
    • FINAL DRIVE RING GEAR
    • 1-2 ROLLER CLUTCH AND CHANGES
    • PLANETARY CARRIERS
    • 3RD ROLLER CLUTCH/INPUT SPRAG AND CHANGES
    • INPUT/3RD CLUTCH HOUSING ASSEMBLY AND CHANGES
    • 2ND CLUTCH HOUSING
    • TURBINE SHAFT SEAL RINGS
    • DRIVE CHAIN, SPROCKETS AND CHANGES
    • DRIVEN SPROCKET SUPPORT AND CHANGES
    • CHANNEL PLATE ASSEMBLY AND CHANGES
    • VALVE BODY ASSEMBLY AND CHANGES
    • OIL PUMP ASSEMBLY AND CHANGES
    • 1-2/2-3 ACCUMULATOR ASSEMBLY AND CHANGES
  • TRANSAXLE ASSEMBLY PROCESS
  • SETTING FINAL DRIVE END PLAY
  • SETTING INPUT END PLAY
  • DRIVE CHAIN SPECIFICATIONS
  • CHECKBALL LOCATIONS
  • TORQUE SPECIFICATIONS

Language: English
Format: PDF
Pages: 120

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