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Home >> Isuzu >> 2007 >> Ascender RWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 274 (Automatic Transmission - 4L60-E/4L65-E/4L70-E - Removal & Installation, Service, Overhaul, Troubleshooting & Diagnosis) >> Repair Instructions - On Vehicle >> Transmission Replacement (LL8) >> Removal Procedure

Removal Procedure

WARNING: This page is about a different car, the 2008 Isuzu Ascender, 2008 GMC Envoy, and 2008 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 Disconnection and Connection .
    2. Fig 1: View Of Filler Tube, Nut & Stud
    GM744648Courtesy of GENERAL MOTORS CORP.
  2. Remove the filler tube nut (2) located on the right side of the engine.
  3. Remove the filler tube from the stud (1) on the right side of the engine.
  4. Raise the vehicle. Refer to Lifting and Jacking the Vehicle .
  5. Drain the transmission fluid if necessary. Refer to Automatic Transmission Fluid and Filter Replacement .
  6. If equipped with 2 wheel drive (2WD) remove the rear propeller shaft. Refer to Rear Propeller Shaft Replacement .
  7. If equipped with 4 wheel drive (4WD) remove the transfer case. Refer to Transfer Case Assembly Replacement (TrailBlazer, Envoy) .
  8. Support the transmission with a transmission jack.
  9. Remove the fuel tank shield if equipped. Refer to Fuel Tank Shield Replacement .
    10. Fig 2: View Of Transmission Crossmember Support
    GM752134Courtesy of GENERAL MOTORS CORP.
  10. Remove the transmission support. Refer to Transmission Support Replacement .
    11. Fig 3: View Of Transmission Mount To Exhaust Hanger Mounting Bolts
    GM1334965Courtesy of GENERAL MOTORS CORP.
  11. Remove the transmission mount. Refer to Transmission Mount Replacement (4.2L)  or Transmission Mount Replacement (5.3L) .
    12. Fig 4: View Of Catalytic Converter Assembly
    GM753684Courtesy of GENERAL MOTORS CORP.
  12. Remove the catalytic converter assembly. Refer to Catalytic Converter Replacement (LL8) or Catalytic Converter Replacement (LH6/LS2) .
  13. Lower the transmission to gain access to the top and sides of the transmission.
    14. Fig 5: Identifying Range Selector Cable & Components
    GM744174Courtesy of GENERAL MOTORS CORP.
  14. Remove the range selector cable end from the transmission range selector lever ball stud (6) and the bracket (1). Refer to Range Selector Lever Cable Replacement .
  15. Remove the transmission heat shield. Refer to Transmission Heat Shield Replacement .
    16. Fig 6: View Of Transmission Vent Hose (LL8)
    GM744644Courtesy of GENERAL MOTORS CORP.
  16. Disconnect the transmission vent hose (2) from the transmission.
    17. Fig 7: View Of Transmission Harness 20-Way Connector
    GM173661Courtesy of GENERAL MOTORS CORP.
  17. Disconnect the main electrical connector from the transmission.
  18. Disconnect the park/neutral position switch connector. Refer to Park/Neutral Position Switch Replacement .
    19. Fig 8: View Of Fuel Line Bracket To Left Side Of Transmission Bolt (LL8)
    GM730721Courtesy of GENERAL MOTORS CORP.
  19. Remove the bolts (2, 3) that secure the fuel line brackets to the left side of the transmission.
    20. Fig 9: View Of Torque Converter Access Plug
    GM744183Courtesy of GENERAL MOTORS CORP.
  20. Remove the torque converter access plug.
  21. Mark the flywheel and torque converter orientation for reassembly.
  22. Remove the flywheel to torque converter bolts. Use care not to drop the bolts into the bell housing.
  23. Disconnect the transmission oil cooler lines from the transmission. Refer to Transmission Fluid Cooler Hose/Pipe Replacement (Body VIN Code 6 LM4) .
  24. Plug the transmission oil cooler line connectors in the transmission case.
    25. Fig 10: View Of Bracket Bolt & Bell Housing
    GM727335Courtesy of GENERAL MOTORS CORP.
  25. Remove the bolt that secures the fuel line bracket to the bell housing.
    26. Fig 11: Identifying Bolt, Coolant Pipe & Bell Housing
    GM744272Courtesy of GENERAL MOTORS CORP.
  26. Remove the bolts (1, 2) that secure the coolant pipe to the bell housing.
  27. Install a safety chain around the transmission.
    28. Fig 12: View Of Bell Housing Bolts
    GM727330Courtesy of GENERAL MOTORS CORP.
  28. Remove the remaining nuts, studs and/or bolts that secure the transmission to the engine.
  29. Install the J 21366  onto the transmission bell housing to retain the torque converter. See Special Tools .
  30. Pull the transmission straight back to clear the torque converter.
  31. Lower the transmission away from the vehicle.
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