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Home >> Chevrolet >> 2008 >> HHR SS, Automatic >> Repair and Diagnosis >> Transmission >> Hydraulic Diagrams >> Automatic Transaxle - 4T45-E - Removal & Installation, Service, Overhaul, Troubleshooting & Diagnosis >> Repair Instructions - On Vehicle >> Transmission Replacement >> Removal Procedure

Removal Procedure

  1. With the wheels in the straight ahead position, remove the key from the ignition switch.
  2. Remove the underhood electrical center cover.
  3. Disconnect the negative battery cable. Refer to Battery Negative Cable Disconnection and Connection .
    4. Fig 1: View Of Engine Electrical Center
    GM873343Courtesy of GENERAL MOTORS CORP.
  4. Disconnect the engine and transmission control module harness connectors (3, 4) and remove the modules.
    5. IMPORTANT: It may be necessary to remove the positive cable retainer near the bottom of the powertrain control module (PCM) bracket.
  5. Disconnect the positive battery cables (1) from the underhood electrical center.
    6. Fig 2: ECM Bracket Nuts/Bolts
    GM1720487Courtesy of GENERAL MOTORS CORP.
  6. Remove the underhood electrical center tray nuts (1) and bolt (2).
  7. Remove the electrical center tray from the base and disconnect the wiring harnesses from the center tray.
    8. Fig 3: View Of Underhood Junction Block
    GM888342Courtesy of GENERAL MOTORS CORP.
  8. Lift the electrical center up and swing it back and out of the way.
  9. Remove the electrical center bracket from the vehicle.
    10. Fig 4: Identifying Shift Control Cable, Lever & Electrical Connector At Transaxle Range (TR) Switch
    GM1233683Courtesy of GENERAL MOTORS CORP.
  10. Disconnect the shift cable from the park neutral position (PNP) switch.
  11. Disconnect the electrical connector from the PNP switch.
  12. Remove the shift cable with bracket from the transmission.
  13. Disconnect the transmission wire harness electrical connector from the transaxle.
    14. Fig 5: Upper Transmission To Engine Bolts
    GM1740241Courtesy of GENERAL MOTORS CORP.
  14. Remove the upper transmission to engine bolt (2) and stud (1).
  15. Install the engine support fixture. Refer to Engine Support Fixture for the 2.2L engine or Engine Support Fixture for the 2.4L engine.
  16. Secure the air conditioning (A/C) condenser and radiator cooling module to the upper body structure.
  17. Remove the left transmission mount bolts.
  18. Raise and support the vehicle. Refer to Lifting and Jacking the Vehicle .
  19. Remove the oil pan to drain the transmission. Refer to Oil Pan Replacement .
  20. Remove the front wheel and tire assemblies. Refer to Tire and Wheel Removal and Installation .
  21. Remove the frame. Refer to Frame Replacement .
  22. Remove the wheel drive shafts from the transaxle. Refer to Wheel Drive Shaft Replacement .
    23. Fig 6: Transmission Brace To Transmission Bolts
    GM1740245Courtesy of GENERAL MOTORS CORP.
  23. Remove the transmission brace to transmission bolts (3).
  24. Remove the starter. Refer to Starter Motor Replacement .
  25. Mark the relationship of the flywheel to the torque converter for reassembly.
  26. Use the J 43653  to prevent the crankshaft from rotating. See Special Tools .
    27. Fig 7: View Of Flywheel To Torque Converter Bolts
    GM475919Courtesy of GENERAL MOTORS CORP.
  27. Use J 43653  to remove the torque converter to flywheel bolts. See Special Tools .
    28. Fig 8: View Of Transaxle Oil Cooler Pipes
    GM1523657Courtesy of GENERAL MOTORS CORP.
  28. Remove the transaxle oil cooler pipes retaining nut from the transaxle.
  29. Remove the transaxle oil cooler pipes from the transaxle.
    30. Fig 9: View Of VSS Wiring Harness
    GM414901Courtesy of GENERAL MOTORS CORP.
  30. Disconnect the vehicle speed sensor (VSS) wiring harness from the sensor and harness retainer.
  31. Remove the rear 02 wiring harness from the rear transmission mount bracket.
  32. Remove the front transmission mount. Refer to Transmission Front Mount Replacement .
  33. Lower the transmission with the engine support fixture enough to remove the transmission.
  34. Raise the vehicle.
  35. Support the transaxle with a suitable jack.
    36. Fig 10: Upper Transmission To Engine Bolts
    GM1740241Courtesy of GENERAL MOTORS CORP.
  36. Remove the lower 6 transaxle to engine bolts (3-9).
  37. Separate the engine and the transaxle.
  38. Remove the transaxle from the vehicle.
  39. Remove the PNP switch, if required.
  40. Remove the transaxle electrical ground stud, if required.
  41. Flush the transmission cooler and lines. Refer to Transmission Fluid Cooler Flushing and Flow Test (J 45096)  or Transmission Fluid Cooler Flushing and Flow Test (J 35944-A) .
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