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Home >> Saturn Truck >> 2009 >> VUE AWD V6-3.5L >> Repair and Diagnosis >> Transmission and Drivetrain >> Automatic Transmission/Transaxle >> Service and Repair >> Removal and Replacement >> 4T45-E Automatic Transaxle

4T45-E Automatic Transaxle




Transmission Replacement

Special Tools
* J 43653 Flywheel Holding Tool
* J 35944-A Transmission Oil Cooler Flusher

Removal Procedure

1. Remove the battery tray support bracket. Refer to Battery Tray Support Bracket Replacement (Battery Tray Support Bracket Replacement).
2. Remove the generator control module, if equipped with 2.4L (LAT). Refer to Generator Control Module Replacement ().
3. Remove the auxiliary fluid pump and pipes, if equipped with 2.4L (LAT). Refer to one of the following:

* Auxiliary Fluid Pump Replacement (Auxiliary Fluid Pump Replacement)
* Auxiliary Fluid Pump Inlet Pipe Replacement (Auxiliary Fluid Pump Inlet Pipe Replacement)
* Auxiliary Fluid Pump Outlet Pipe Replacement (Auxiliary Fluid Pump Outlet Pipe Replacement)

4. Remove the air cleaner outlet duct. Refer to Air Cleaner Outlet Duct Replacement (Air Cleaner Outlet Duct Replacement).
5. Disconnect the transmission electrical wiring harness connector from the park neutral position (PNP) switch.
6. Disconnect the transmission main wiring harness from the transmission.
7. Remove the wiring harness from the retainer on the transmission.
8. Remove the battery ground cable from the transmission, if equipped.




9. Disconnect the transmission shift control cable terminal (2) from the transmission manual shift lever pin (1).
10. Press the locking tabs (3) inward in order to release the transmission shift control cable from the cable bracket (4).




11. Remove the shift cable bracket bolts (1, 3).
12. Remove the shift cable bracket (2).




13. Remove the upper transmission to engine bolts (1).
14. Remove the vehicle frame. Refer to Frame Replacement (4T45-E Transmission) (Frame Replacement (4T45-E Transmission))Frame Replacement (6T70 Transmission) (Frame Replacement (6T70 Transmission))Frame Replacement (2MT70 Transmission) (Frame Replacement (2MT70 Transmission)).




15. Remove the bolts (2, 3) from the transmission brace.
16. Remove the transmission brace (1).
17. Remove the starter. Refer to Starter Replacement (LZ4) (Service and Repair)Starter Replacement (LE5/LAT) (Service and Repair)Starter Replacement (LY7) (Service and Repair).
18. Mark the relationship of the flywheel to the torque converter for reassembly.
19. Use the J 43653 to prevent the crankshaft from rotating.




20. Remove the torque converter to flywheel bolts.
21. Remove the nut holding the transmission cooler line retainer to the transmission.
22. Disconnect the transmission cooler lines from the transmission.




23. Disconnect the vehicle speed sensor (VSS) wiring harness connector and retainer from the sensor.
24. Lower the vehicle.
25. Remove the left transmission mount and spacer. Refer to Transmission Mount Replacement - Left Side (Transmission Mount Replacement - Left Side).
26. Raise the vehicle. Refer to Lifting and Jacking the Vehicle (Service and Repair).
27. Disconnect the wheel drive shafts from the transmission. Refer to Front Wheel Drive Shaft Replacement (Front Wheel Drive Shaft Replacement).
28. Support the transmission with a suitable jack.




29. Remove the lower transmission to engine bolts (1).
30. Separate the engine from the transmission.
31. Remove the transmission from the vehicle.
32. If the transmission is being replaced, remove the PNP switch from the transmission. Refer to Park/Neutral Position Switch Replacement (4T45-E - Automatic Transmission).
33. Flush the transmission cooler and the lines with J 35944-A .

Installation Procedure

1. If previously removed, install the PNP switch. Refer to Park/Neutral Position Switch Replacement (4T45-E - Automatic Transmission).
2. Position the transmission to the engine.





Caution: Refer to Fastener Caution (Fastener Caution).

3. Install the lower transmission to engine bolts (1) and tighten to 75 Nm (55 lb ft).
4. Install the wheel drive shafts to the transmission. Refer to Front Wheel Drive Shaft Replacement (Front Wheel Drive Shaft Replacement).
5. Lower the vehicle.
6. Install the left transmission mount and spacer. Refer to Transmission Mount Replacement - Left Side (Transmission Mount Replacement - Left Side).
7. Raise the vehicle. Refer to Lifting and Jacking the Vehicle (Service and Repair).
8. Lubricate the transmission cooler pipes before inserting into the seals.
9. Connect the transmission cooler pipes to the transmission.
10. Install the transmission cooler pipes retainer nut and tighten to 7 Nm (62 lb in).




11. Connect the wiring harness connector and retainer to the VSS.
12. Use the J 43653 to prevent the crankshaft from rotating.




13. Install the torque converter to flywheel bolts and tighten to 60 Nm (44 lb ft).
14. Install the starter. Refer to Starter Replacement (LZ4) (Service and Repair)Starter Replacement (LE5/LAT) (Service and Repair)Starter Replacement (LY7) (Service and Repair).




15. Install the transmission brace (1).
16. Install the transmission brace bolts (2, 3) and tighten to 53 Nm (39 lb ft).
17. Install the frame. Refer to Frame Replacement (4T45-E Transmission) (Frame Replacement (4T45-E Transmission))Frame Replacement (6T70 Transmission) (Frame Replacement (6T70 Transmission))Frame Replacement (2MT70 Transmission) (Frame Replacement (2MT70 Transmission)).
18. Lower the vehicle.




19. Install the upper transmission to engine bolts (1) and tighten to 75 Nm (55 lb ft).




20. Install the shift cable bracket (2).
21. Install the shift cable bracket bolts (1, 3) and tighten to 20 Nm (15 lb ft).




22. Install the transmission shift control cable (3) to the cable bracket (4).
23. Connect the transmission shift control cable terminal (2) to the transmission manual shift lever pin (1).
24. Connect the transmission main electrical wiring harness connector to the transmission.
25. Connect the transmission electrical wiring harness connector to the park neutral position (PNP) switch.
26. Attach the wiring harness to the retainer on the transmission.
27. Install the battery ground cable to the transmission, if equipped.
28. Install the air cleaner outlet duct. Refer to Air Cleaner Outlet Duct Replacement (Air Cleaner Outlet Duct Replacement).
29. Install the auxiliary fluid pump and pipes, if equipped with 2.4L (LAT). Refer to one of the following:

* Auxiliary Fluid Pump Replacement (Auxiliary Fluid Pump Replacement)
* Auxiliary Fluid Pump Inlet Pipe Replacement (Auxiliary Fluid Pump Inlet Pipe Replacement)
* Auxiliary Fluid Pump Outlet Pipe Replacement (Auxiliary Fluid Pump Outlet Pipe Replacement)

30. Install the generator control module, if equipped with 2.4L (LAT). Refer to Generator Control Module Replacement ().
31. Install the battery tray support bracket. Refer to Battery Tray Support Bracket Replacement (Battery Tray Support Bracket Replacement).
32. Add automatic transmission fluid (ATF) and verify the proper fluid level of the transmission.

Note: It is recommended that transmission adaptive pressure (TAP) information be reset.

Resetting the TAP values using a scan tool will erase all learned values in all cells. As a result, the ECM, PCM or TCM will need to relearn TAP values. Transmission performance may be affected as new TAP values are learned.

33. Reset the TAP values. Refer to Transmission Adaptive Functions (Transmission Adaptive Functions).
34. Road test the vehicle.
35. Raise the vehicle. Refer to Lifting and Jacking the Vehicle (Service and Repair).

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