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THM 4T65-E – ATSG (Automatic Transmission Service Group)

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This Manual contains general description and overhaul procedures necessary to repair, overhaul or service the THM 4T65-E electronic overdrive automatic transaxle. This transaxle was introduced in the 1997 model year in several different models using the 3.8L supercharged engine and some models with the 3.8L and 3.4L engines. The THM 4T65-E is very similar to the 4T60-E and some of the parts are common with this unit. We wish to thank General Motors Corp. for the information and illustrations that have made this booklet possible.

The THM 4T65-E is a fully automatic Front Wheel Drive, electronically controlled transaxle. It provides four forward ranges including overdrive and all shifts are freewheeling. Shift points are controlled by the PCM via two shift solenoids. Oil pressure is regulated by the PCM via a Pressure Control Solenoid. Shift schedule and TCC apply rates are also controlled by the PCM and are influenced by many sensor inputs.

Applications:

  • 1997–2003 Chevrolet Lumina/Monte Carlo V6 3.4 L/3.8 L
  • 1997–2003 Chevrolet Venture V6 3.4 L
  • 2000–2003 Chevrolet Impala V6 3.4 L/3.8 L
  • 1997–2001 Chevrolet Lumina/Monte Carlo V6 3.1 L
  • 1998-1999 Oldsmobile Intrigue V6 3.8 L
  • 1998-2003 Pontiac Grand Prix V6 3.1 L/3.8 L
  • 1997-2004 Pontiac Grand Prix “GT” 3800 V6 (L36 Motor)
  • 2006-2007 Chevrolet Malibu (SS Models) V6 3.9 L

CONTENTS

  • VEHICLE APPLICATIONS FOR 1997 4T65-E
  • POWER FLOW AND COMPONENT APPLICATION CHART
  • SHIFT SOLENOID APPLY CHART AND RESISTANCE CHART
  • WIRING SCHEMATIC AND CASE CONNECTOR PIN IDENTIFICATION
  • INTERNAL ELECTRICAL CONTROLS
  • DIAGNOSTIC TROUBLE CODES
  • CHECKBALL LOCATIONS
  • PRESSURE SWITCH ASSEMBLY OPERATION AND TESTS
  • OIL PASSAGE IDENTIFICATION
  • TRANSAXLE BEARING LOCATIONS
  • INDIVIDUAL MODEL RATIO IDENTIFICATION “1997 TO 2002”
  • TRANSAXLE DIS-ASSEMBLY
  • COMPONENT REBUILD, FINAL DRIVE ASSEMBLY
  • COMPONENT REBUILD, 1-2 ROLLER CLUTCH ASSEMBLY
  • COMPONENT REBUILD, INPUT AND REACTION CARRIERS
  • COMPONENT REBUILD, INPUT AND 3RD SPRAG ASSEMBLIES
  • COMPONENT REBUILD, INPUT CLUTCH HOUSING ASSEMBLY
  • COMPONENT REBUILD, 2ND CLUTCH HOUSING ASSEMBLY
  • COMPONENT REBUILD, DRIVEN SPROCKET ASSEMBLY
  • COMPONENT REBUILD, ACCUMULATOR HOUSING ASSEMBLY
  • COMPONENT REBUILD, OIL PUMP ASSEMBLY
  • COMPONENT REBUILD, CASE COVER ASSEMBLY
  • COMPONENT REBUILD, VALVE BODY ASSEMBLY
  • COMPONENT REBUILD, TURBINE SHAFT, SPROCKETS AND DRIVE CHAIN ASSEMBLY
  • TRANSAXLE ASSEMBLY
  • FINAL DRIVE SELECTIVE MEASUREMENT
  • TRANSAXLE END PLAY MEASUREMENT
  • TORQUE SPECIFICATIONS
  • SPECIAL TOOLS
  • EXPLODED PARTS ILLUSTRATIONS
  • LINE PRESSURE SPECIFICATIONS AND CHECKS

Language: English
Format: PDF
Pages: 120

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