Removal and installation of 4-speed and automatic transmission (AT) (Honda Accord 6)

Removal

1. Disconnect the negative cable from the battery.

Warning! If the car stereo system is equipped with a security code, make sure you have the correct combination to activate the audio system before disconnecting the battery!

2. Remove the air intake sleeve and air cleaner housing (see Chapter Power and exhaust systems).

3. Remove the battery and its support tray (see Chapter Engine electrical equipment). Disconnect the ground bus from the transmission housing.

4. Disconnect the electrical wiring, unscrew the mounting bolts and remove the starter assembly (see Chapter Engine electrical equipment).

5. Disconnect the wiring from the VSS and transmission control solenoids (see Sections Adjusting and replacing the transmission position sensor switch and Checking and replacing the electromagnetic valves that control the operation of the transmission).

6. Jack up the car and place it on supports. Remove the front wheels.

7. Suspend the power unit from above using a winch or a beam placed over the edges of the hood.

8. On 4-cylinder models, remove the bolts securing the powertrain mount bracket to the transmission. On V6 models, remove the nut securing the front powertrain mount cushion to the bracket.

9. Remove the crankcase guard.

10. Drain the ATF from the transmission. When screwing the drain plug back in, be sure to replace its sealing washer.



11. Disconnect the ATF cooling system hoses.



12. Disconnect the λ-probe wiring (see Chapter Engine management).

13. Remove the exhaust pipe (see Chapter Power and exhaust systems).

14. Release the damper forks from the suspension control arms (see Chapter Suspension and steering).

15. Loosen the ball joint crown nuts and disconnect the lower arms from the steering knuckles (see Chapter Suspension and steering).

16. Release the drive shafts from the final drive assembly (see Chapter Clutch and drive shafts). Wrap the inner CV joint assemblies in plastic bags to protect them from contamination. Tie the drive shafts to the suspension components with wire, preventing them from hanging with all their weight on the outer CV joints. Remove the intermediate shaft.

17. Unscrew the bolts of the right and left push rods and separate the latter from the suspension control arms (see Chapter Suspension and steering).



18. Mark the position of the subframe relative to the chassis and release the power steering hydraulic lines from the clamps on the subframe.



19. On V6 models, loosen the nuts securing the lower mounts to the subframe. Remove the mounting bolts and lift the subframe assembly out from under the vehicle.





20. On V6 models, remove the power steering booster plate mounting bolts. On 4-cylinder models, remove the booster assembly.

21. Remove the gear shift cable holder (see Section Removal, installation and adjusting the gear shift cable).

22. Remove the gear shift cable (see Section Removal, installation and adjusting the gear shift cable).

23. Mark the position of the rotation converter relative to the drive disk - during assembly, the components must be installed strictly in their previous positions to avoid imbalance.


24. Unscrew the bolts securing the rotation converter to the drive disk one by one. To gain access to the next bolt, turn the crankshaft by the pulley.



25. Remove the two rear bolts securing the transmission housing to the engine wall.



26. On 4-cylinder models, remove the rear engine mount bracket bolts.

27. On 4-cylinder models, remove the intake manifold mounting bracket (near the rear powertrain mount bracket).

28. Remove the powertrain mounts from the transmission (see Chapter Engine). On V6 models, remove the front unit mount bracket.

29. Support the transmission with a jack (if possible, a special one), securing it to the head of the latter with a safety chain. Raise the assembly, completely unloading its supports.



30.Remove the support bracket nuts and unscrew the remaining transmission-to-engine mounting bolts.

31. Remove any other chassis or suspension components that interfere with transmission removal.



32. Move the jack back, removing the transmission from the guide pins. Make sure the rotation converter is disconnected from the drive disk. Secure the converter in the transmission to prevent it from falling out during the disassembly process. Lower the transmission and remove it from under the vehicle.

Note: It may be necessary to slightly lower the winch that supports the engine while lowering the transmission to create more working space.

Installation

1. Vehicle manufacturers (Honda) recommend flushing the ATF cooler and cooling system lines with solvent. Make sure that no solvent remains in the cooler lines/cavities after flushing. It is a good idea to flush the cooler with clean ATF to be sure.

2. Before installation, make sure that the rotation converter hub is securely engaged in the pump.

3. After securing the transmission on the jack, move it into its normal position (try not to tilt the assembly to avoid the converter falling out of it).

4. Ensure that the marks on the converter position relative to the drive disk, applied during dismantling, are correctly aligned.

5. Make sure that the two guide pins are in their sockets, then carefully place the transmission on them, ensuring that the converter is correctly engaged.

6. Install the four transmission-to-engine mounting bolts and tighten them to the specified torque.

Caution! Do not use bolts to tighten the transmission to the engine. If the assembly cannot be pressed, try to identify the cause and eliminate the obstruction.

7. Further installation is carried out in the reverse order of dismantling the components. When installing the subframe, ensure that the mounting marks applied during dismantling are correctly aligned. Tighten the subframe fasteners to the required torque (see also Specifications to Chapter Suspension and steering). The required tightening forces for the fasteners of the power unit supports are given in the Specifications to Chapter Engine.



8. Fill the transmission with the required amount of ATF of the required grade (see Chapter Settings and ongoing maintenance). Do not be alarmed if you need to fill in a little more fluid than is stipulated by the standards - the excess will go to filling the rotation converter, which is not emptied during the normal ATF change.

9. Start the engine, set the parking brake and cycle the selector lever through all positions three times. Check that the gearshift cable is functioning properly (see Section Removal and installation the gear shift lever (selector)).

10. Warm up the engine to normal operating temperature (transmission in position "N" or "P"), then turn it off and check the ATF level.

11. Test drive the vehicle, then check the powertrain for signs of fluid leaks.

12. If vibrations occur, loosen and then tighten the fasteners of the power unit mounts again to the required torque (see Chapter Engine).

13. Adjust the front wheel alignment angles.