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Transmission Replacement




Transmission Replacement

Removal Procedure

1. Place the transmission in the Park position.

Warning:
Refer to Battery Disconnect Warning Battery Disconnect Warning Battery Disconnect Warning.


2. Disconnect the battery negative cable. Refer to Battery Negative Cable Disconnection and Connection (Primary) Battery Negative Cable Disconnection and Connection (Primary)Battery Negative Cable Disconnection and Connection (Auxiliary) Battery Negative Cable Disconnection and Connection (Auxiliary) Battery Negative Cable Disconnection and Connection.

3. Raise and support the vehicle. Refer to Lifting and Jacking the Vehicle Service and Repair Lifting and Jacking the Vehicle.

4. Remove the exhaust system. Refer to Exhaust System Replacement (V6) Service and RepairExhaust System Replacement (V8) Service and Repair Exhaust System Replacement.

5. Remove the propeller shaft. Refer to Propeller Shaft Replacement (Except 4L60) Propeller Shaft Replacement (Except 4L60) Propeller Shaft Replacement.





6. Remove the transmission manual shift shaft nut (3).

7. Disconnect the shift linkage (1) from the transmission shift shaft (2).

8. Remove the starter motor. Refer to Starter Replacement (L77) Service and RepairStarter Replacement (LFX) Service and Repair Starter Replacement.





9. On vehicles equipped with a V8 engine, remove the right flex plate inspection cover.





10. On vehicles equipped with a V8 engine, remove the left flex plate inspection cover.

11. Rotate the harmonic balancer center bolt clockwise ONLY, in order to align the torque converter bolt with the starter motor opening in the engine block.

12. Mark the torque converter to flex plate orientation to make sure of correct realignment.

Note:
NEW torque converter bolts will be required each time the torque converter bolts are removed.

13. Remove the torque converter bolt.

Discard the bolt.

14. Repeat Steps 16 and 18 for the remaining torque converter bolts.

15. Through the starter motor opening, push the torque converter back towards the transmission pump.





16. On vehicles equipped with a V8 engine, remove the automatic transmission cooler pipe clamp to generator retaining nut (1).





17. Remove the automatic transmission cooler pipe retaining bolt (3) from the transmission assembly (2).

18. Position the automatic transmission cooler pipes (1) aside.

Note:
The engine mounts must NOT bend or deflect from the vertical position, damage to the mount will occur.

19. Support the engine with a suitable jack or table.





20. Remove the transmission support to body retaining bolts (1).

21. Support the transmission with a suitable jack or table.





22. Disconnect the transmission vent hose (1) from the transmission.





23. Disconnect the transmission wiring harness connector (1) from the transmission by rotating the locking latch (2) counter-clockwise.





24. Remove the wiring harness retaining bolts (2) from the transmission.

25. Disconnect the wiring harness clips (1) from the transmission, and position the wiring harness aside.





26. Remove the transmission support to transmission mount retaining nuts (1).

27. Remove the transmission mount. Refer to Transmission Mount Replacement Service and Repair Transmission Mount Replacement.





28. Remove the transmission to engine assembly retaining bolts.

29. Pull the transmission free from the engine dowels.

Note:
Ensure clearance is maintained between the transmission and the following:

* The catalytic converters

* The wiring harnesses

* The transmission cooler pipes

* The transmission shift linkage

* The transmission vent hose

30. Carefully lower the transmission from the vehicle.

31. Flush the transmission oil cooler. Refer to Transmission Fluid Cooler Flushing and Flow Test Transmission Fluid Cooler Flushing and Flow Test Transmission Fluid Cooler Flushing and Flow Test.

Installation Procedure

Note:

* The engine mounts must NOT bend or deflect from the vertical position, damage to the mount will occur.

* Ensure clearance is maintained between the transmission and the following:

- The catalytic converters

- The wiring harnesses

- The transmission cooler pipes

- The transmission shift linkage

- The transmission vent hose

1. Rotate the harmonic balancer center bolt clockwise ONLY to align the torque converter bolt hole that has the flex plate to torque converter alignment mark with the starter motor opening.

2. Prepare the transmission for installation by rotating the torque converter clockwise ONLY to align the torque converter bolt hole that has the alignment mark with the starter motor opening.

3. Using a suitable transmission jack, carefully raise the transmission to the vehicle.

4. Align the transmission with the engine dowels.





5. Install the transmission to engine retaining bolts and tighten to 59 Nm (43 lb ft).

6. Install the transmission mount. Refer to Transmission Mount Replacement Service and Repair Transmission Mount Replacement.





7. Install the transmission support to transmission mount retaining nuts (1) and tighten to 58 Nm (43 lb ft).





8. Position the transmission wiring harness to the transmission and connect the wiring harness clips (1) to the transmission.

9. Install the wiring harness retaining bolts (2) to the transmission and tighten to 12 Nm (106 lb in).





10. Connect the transmission wiring harness connector (1) to the transmission by rotating the locking latch (2) clockwise.





11. Connect the transmission vent hose (1) to the transmission.

12. Remove the support from under the engine.

13. Insert the transmission fluid cooler pipes (1) into the transmission (2).

14. Install the automatic transmission cooler pipe retaining bolt (3) and tighten to 20 Nm (15 lb ft).





15. On vehicles equipped with a V8 engine, install the automatic transmission cooler pipe to generator retaining nut (1) and tighten to 22 Nm(17 lb ft).

16. Align the torque converter to flex plate orientation marks made during the removal procedure.

Note:
Torque converter bolts are self locking and must be replaced with NEW torque converter bolts every time the bolts are removed.

17. Repeat the following steps for all 3 torque converter bolts:

1. Rotate the harmonic balancer center bolt clockwise ONLY, in order to align the torque converter bolt holes in the flex plate with the starter motor opening in the engine block.

2. To aid in alignment of the torque converter to the flex plate. Install all 3 NEW torque converter bolts before fully tightening to 63 Nm (46 lb ft).





18. On vehicles equipped with a V8 engine, install the left flex plate inspection cover and tighten the retaining bolt to 10 Nm (89 lb in).





19. On vehicles equipped with a V8 engine, install the right flex plate inspection cover and tighten the retaining bolt to 10 Nm (89 lb in).

20. Install the starter motor. Refer to Starter Replacement (L77) Service and RepairStarter Replacement (LFX) Service and Repair Starter Replacement.





21. Place the transmission in the park position by rotating the shift shaft fully counter clockwise.

22. Connect the shift linkage (1) to the transmission manual shift shaft (2).

23. Install the transmission manual shift shaft nut (3) and tighten to 15 Nm (11 lb ft).

24. Adjust the shift control linkage. Refer to Range Selector Lever Link Adjustment Adjustments Range Selector Lever Link Adjustment.

25. Install the propeller shaft. Refer to Propeller Shaft Replacement (Except 4L60) Propeller Shaft Replacement (Except 4L60) Propeller Shaft Replacement.

26. Install the exhaust system. Refer to Exhaust System Replacement (V6) Service and RepairExhaust System Replacement (V8) Service and Repair Exhaust System Replacement.

27. Lower the vehicle.

28. Connect the battery negative cable. Refer to Battery Negative Cable Disconnection and Connection (Primary) Battery Negative Cable Disconnection and Connection (Primary)Battery Negative Cable Disconnection and Connection (Auxiliary) Battery Negative Cable Disconnection and Connection (Auxiliary) Battery Negative Cable Disconnection and Connection.

29. The transmission control module must be programmed with the proper software/calibrations. Refer to Reset Transmission Adapts Reset Procedure.

Final Test and Inspection

Complete the following procedure after the transmission is installed in the vehicle:

1. Disable the ignition and fuel system:

* Remove the fuel pump fuse from the under hood body electrical center.

* Remove the ignition relay from the under hood body electrical center.

2. Crank the engine several times. Listen for any unusual noises or evidence that any parts are binding.

3. Enable the ignition and fuel system:

* Install the fuel pump fuse to the under hood body electrical center.

* Install the ignition relay to the under hood body electrical center.

4. Start the engine and listen for abnormal conditions.

5. While the engine continues to idle raise and support the vehicle. Refer to Lifting and Jacking the Vehicle Service and Repair Lifting and Jacking the Vehicle.

6. Inspect for fluid leaks while the engine is idling.

7. Check the transmission fluid level (fill if necessary). Refer to Transmission Fluid Level and Condition Check Transmission Fluid Level and Condition Check Transmission Fluid Level and Condition Check.

8. Lower the vehicle.

9. Road test the vehicle.

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