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Home >> Chevrolet >> 2004 >> Avalanche 2500 >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 9 (Automatic Transmission - 4L60-E/4L65-E (Introduction, Service & Replacement)) >> Repair Instructions >> Transmission Replacement >> Removal Procedure

Removal Procedure

WARNING: This page is about a different variant/trim than selected.
    Fig 1: Identifying Transmission Mount Nuts
    GM647997Courtesy of GENERAL MOTORS CORP.
  1. Disconnect the negative battery cable. Refer to Battery Negative Cable Disconnect/Connect Procedure in Engine Electrical.
  2. Drain the transmission fluid. Refer to Automatic Transmission Fluid/Filter Replacement .
  3. Remove the rear propeller shaft. Refer to Propeller Shaft Replacement - Rear in Propeller Shaft.
  4. Support the transmission with a transmission jack.
  5. Remove the transmission mount nuts.
    6. Fig 2: View Of Transmission Crossmember
    GM702036Courtesy of GENERAL MOTORS CORP.
  6. Remove the transmission support bolts/nuts.
  7. Raise the transmission slightly and remove the transmission support from the vehicle.
  8. Remove the exhaust pipe. Refer to Exhaust Manifold Pipe Replacement (6.0L and 8.1L Engines) in Engine Exhaust.
  9. Remove the starter motor. Refer to Starter Motor Replacement (4.8L, 5.3L, and 6.0L Engines) or Starter Motor Replacement (8.1L Engine) in Engine Electrical.
  10. Remove the transfer case, if equipped. Refer to the appropriate procedure:
    11. Fig 3: Transmission Mount & Bolts
    GM858996Courtesy of GENERAL MOTORS CORP.
  11. Remove the transmission mount bolts and mount.
    12. Fig 4: View Of Retainer Securing Cable To Bracket
    GM858985Courtesy of GENERAL MOTORS CORP.
  12. Ensure the transmission manual shaft is positioned in mechanical park.
  13. Remove the retainer that secures the cable to the bracket.
    14. Fig 5: View Of Range Selector Cable End At Transmission Range Selector Lever Ball Stud
    GM738167Courtesy of GENERAL MOTORS CORP.
  14. Remove the range selector cable end (2) from the transmission range selector lever ball stud (1).
  15. Depress the tangs and remove the cable from the bracket.
    16. Fig 6: View Of Heat Shield/Exhaust Pipe Hanger Bracket & Bolts
    GM858548Courtesy of GENERAL MOTORS CORP.
  16. Remove the exhaust hanger bracket bolts and bracket.
    17. Fig 7: PNP Switch Electrical Connectors & Harness Clip
    GM858995Courtesy of GENERAL MOTORS CORP.
  17. Remove the harness clip (1) from the fuel line bracket.
  18. Disconnect the park/neutral position (PNP) switch electrical connectors (2).
    19. Fig 8: View Of Transmission Harness 20-Way Connector & VSS Electrical Connector
    GM858994Courtesy of GENERAL MOTORS CORP.
  19. Disconnect the main electrical connector (1).
  20. Disconnect the vehicle speed sensor (VSS) electrical connector (2).
    21. Fig 9: View Of Bolt Securing Fuel Line Bracket To Left Side Of Transmission
    GM396800Courtesy of GENERAL MOTORS CORP.
  21. Remove the bolt that secures the fuel line bracket to the left side of the transmission.
    22. Fig 10: Torque Converter Bolts
    GM859005Courtesy of GENERAL MOTORS CORP.
  22. Remove the torque converter bolts.
    23. Fig 11: View Of Transmission Oil Cooler Lines
    GM396804Courtesy of GENERAL MOTORS CORP.
  23. Disconnect the transmission oil cooler lines. Refer to Transmission Fluid Cooler Line Quick Connect Fitting .
  24. Plug the transmission oil cooler line fittings.
    25. Fig 12: Fuel Feed/Return & Evaporative Emission Return Pipe Bracket & Nut
    GM859002Courtesy of GENERAL MOTORS CORP.
  25. Remove the fuel feed/return and evaporative emission (EVAP) return pipe bracket nut.
    26. Fig 13: Lower Right Transmission Bolt And Stud
    GM859004Courtesy of GENERAL MOTORS CORP.
  26. Remove the lower right transmission bolt and stud.
    27. Fig 14: View Of Automatic Transmission Bolt/Studs
    GM859003Courtesy of GENERAL MOTORS CORP.
  27. Remove the remaining transmission studs and bolt.
  28. Install the J 21366 onto the transmission in order to retain the torque converter.
  29. Pull the transmission straight back.
  30. Remove the transmission from the vehicle while simultaneously removing the fluid level indicator tube.
  31. Install the J 21366 to the bellhousing in order to retain the torque converter.
  32. Flush the transmission oil cooler and cooling lines if necessary. Refer to Automatic Transmission Oil Cooler Flushing and Flow Test (J 45096) or Automatic Transmission Oil Cooler Flushing and Flow Test (J 35944-A) .
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