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Home >> Chevrolet >> 2002 >> Blazer 4D Utility, 4WD, Part Time >> Repair and Diagnosis >> External Pages >> Different car >> Section 1449 (Automatic Transmission - 4L60-E/4L65-E (Introduction, Service & Replacement)) >> Repair Instructions >> Transmission Replacement (LM4) >> Removal Procedure

Removal Procedure

WARNING: This page does not describe the selected car, but rather 6 other vehicles, including the 2004 Oldsmobile Bravada, 2004 GMC Envoy XUV, 2004 GMC Envoy XL, 2004 GMC Envoy, and 2004 Chevrolet TrailBlazer. However, it is still accessible from the selected car via links, so may be relevant.
  1. Disconnect the battery. Refer to Battery Negative Cable Disconnect/Connect Procedure in Engine Electrical.
  2. Raise the vehicle. Refer to Lifting and Jacking the Vehicle in General Information.
  3. Drain the transmission fluid if necessary. Refer to Automatic Transmission Fluid/Filter Replacement  .
  4. Remove the rear propeller shaft. Refer toPropeller Shaft Replacement - Rear in Propeller Shaft.
  5. Support the transmission with a transmission jack.
    6. Fig 1: View Of Transmission Mount To Transmission Support
    GM744176Courtesy of GENERAL MOTORS CORP.
  6. Remove the nuts securing the transmission mount to the transmission support.
    7. Fig 2: View Of Transmission Crossmember Support
    GM752134Courtesy of GENERAL MOTORS CORP.
  7. Remove the transmission support from the vehicle. Refer to Transmission Support Replacement in Frame and Underbody.
    8. Fig 3: View Of Transmission Mount & Bolts (LM4)
    GM899346Courtesy of GENERAL MOTORS CORP.
  8. Remove the transmission mount bolt (1).
  9. Remove the transmission mount from the vehicle.
  10. Remove the front exhaust pipe assembly. Refer to Catalytic Converter Replacement (4.2L Engine) or Catalytic Converter Replacement (5.3L Engine) in Engine Exhaust.
  11. Lower the transmission to gain access to the top and sides of the transmission.
  12. Remove the transfer case, if equipped. Refer to Transfer Case Assembly Replacement in Transfer Case -NVG 126-NP4 or Transfer Case Assembly Replacement (TrailBlazer, Envoy) in Transfer Case-226-NP4.
    13. Fig 4: Identifying Range Selector Cable
    GM744174Courtesy of GENERAL MOTORS CORP.
  13. Remove the range selector cable end from the transmission range selector lever ball stud (6) and the bracket (1). Refer to Automatic Transmission Range Selector Cable Replacement  .
  14. Remove the transmission heat shield. Refer to Heat Shield Replacement  .
  15. Disconnect the transmission vent hose, the park/neutral position switch connectors, and the main electrical connector from the transmission. Refer to Park/Neutral Position Switch Replacement  .
  16. Remove the transmission harness from the retainers.
    17. Fig 5: View Of Fuel Line Bracket To Left Side Of Transmission Bolt (LM4)
    GM899344Courtesy of GENERAL MOTORS CORP.
  17. Remove the bolt that secures the fuel line bracket to the left side of the transmission.
    18. Fig 6: View Of Torque Converter Access Plug
    GM744183Courtesy of GENERAL MOTORS CORP.
  18. Remove the torque converter access plug.
  19. Mark the flywheel and torque converter orientation for reassembly.
  20. Remove the flywheel to torque converter bolts. Use care not to drop the bolts into the bell housing.
  21. Disconnect the transmission oil cooler lines from the transmission. Refer to Transmission Fluid Cooler Hose/Pipe Replacement (Body Vin Code 3 LL8)  or Transmission Fluid Cooler Hose/Pipe Replacement (Body Vin Code 6 LL8)  or Transmission Fluid Cooler Hose/Pipe Replacement (Body Vin Code 6 LM4)  .
  22. Plug the transmission oil cooler line connectors in the transmission case.
  23. Install a safety chain around the transmission.
    24. Fig 7: View Of Filler Tube To Bell Housing Nut (LM4)
    GM899345Courtesy of GENERAL MOTORS CORP.
  24. Remove the nut that secures the filler tube to the bell housing.
  25. Remove the transmission filler tube.
    26. Fig 8: View Of Transmission, Nuts, Studs & Bolts (LM4)
    GM899342Courtesy of GENERAL MOTORS CORP.
  26. Remove the remaining nuts, studs and/or bolts that secure the transmission to the engine.
  27. Install the J 21366 onto the transmission bell housing to retain the torque converter.
  28. Pull the transmission straight back.
  29. Remove the transmission from the vehicle.
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