Diesel Data: Automotive Repair

1. Automatic Transmission Disassembly




Automatic Transmission Disassembly

Special Tools Required

- Mainshaft Holder 07GAB-PF50101

NOTE: The illustration shows the 4WD transmission; the 2WD is similar.

1. Remove the ATF dipstick (D) and the ATF dipstick guide tube (E).





2. Remove A/T clutch pressure control solenoid valves A and B (six bolts), the ATF feed pipes (F) (three), the O-rings (three), and the gasket.

3. Remove the solenoid valve cover (G) (seven bolts), the dowel pins (two), and the gasket.

4. Disconnect the solenoid valve connectors, then remove the shift solenoid wire harness connector (H).

5. Remove A/T clutch pressure control solenoid valve C (four bolts), the ATF feed pipes (I) (two), the O-rings (two), the ATF pipe, and the gasket.

6. Pry the lock tab of the lock washer (J) on the control lever (K), and remove the locknut, the lock washer, the spring washer, and the control lever.

7. Pry the lock tabs of the lock washer (L) on the transmission range switch (M), hold the selector control shaft (N) with a 6.0 mm wrench, and loosen the locknut (O).

8. Remove the locknut and the lock washer, then remove the transmission range switch (two bolts).

9. Remove the input shaft (mainshaft) speed sensor (P), the output shaft (countershaft) speed sensor (Q), and the sensor washer (R).

10. Remove the ATF temperature sensor connector from the connector bracket (S) and the harness clamp from the clamp bracket on the ATF cooler line, then remove the ATF temperature sensor (T).

11. Remove the connector bracket (S) and the 6.0 mm bolt (U), the dowel pins (two), the O-ring then remove the ATF cooler line banjo bolts (V), the ATF cooler lines (W), and the sealing washers (X).

12. Remove the end cover (Y) (three bolts), the dowel pin (two), the O-ring, the snap ring cap (Z) (two bolts), the sealing plug (AA), and the sealing washer (BB).

13. Remove the transmission fluid pressure switch B (3rd clutch) (CC) and the sealing washer.

14. Remove the 4th clutch transmission fluid pressure switch (DD) and the sealing washer.

15. Remove the transmission fluid pressure switch A (2nd clutch) (EE) and the sealing washer.

16. Remove the transmission ground terminal (FF).

17. Slip the mainshaft holder onto the mainshaft.






18. Cut the lock tab (A) of the mainshaft locknut (B) using a chisel (C).

NOTE: Keep all of the chiseled particles out of the transmission.






19. Remove the locknut (A) from the mainshaft (B).





20. Pry the lock washer (C), and remove it.

21. Remove the transmission housing mounting bolts (A) (4WD: 23 bolts, 2WD: 22 bolts), the 12 x 1.25 mm bolt (B), and the transmission hanger (C).






22. Use snap ring pliers to expand the snap ring of the countershaft bearing. Then lift the transmission housing.





23. Release the snap ring pliers, and remove the transmission housing (E), the two dowel pins (F), and the gasket.

24. Remove the ATF feed pipes (G) (four) from the accumulator body.

25. Remove the ATF feed pipes (H) (two) from the torque converter housing.

26. Remove the mainshaft holder from the mainshaft.

27. Pry back the lock tab of the lock washer (I) on the shift fork (J), then remove the bolt and the lock washer.

28. Unclip the detent spring from the detent arm.





29. Remove the park pawl stop (K), the park pawl (L), the pawl spring (M), and the pawl shaft (N).

30. Remove the mainshaft (O), the countershaft (P), the shift fork (J), and the secondary shaft (Q) together, and remove the needle bearing (R) from the torque converter housing.





31. Remove the selector control shaft and the park lever link (S).

32. Remove the oil catch plate (T).

33. Remove the differential assembly (U).

34. 4WD: Remove the transfer output shaft (V).

35. Remove the baffle plate (W).

36. Remove the intermediary shaft (X).

37. Remove the ATF strainer (A) (one bolt).






38. Remove the accumulator body (B) (11 bolts), the dowel pins (two), the detent arm (C), the detent arm shaft (D), and the accumulator separator plate (E).

39. Remove the ATF feed pipe (F) from the main valve body.

40. Remove the secondary valve body (G) (one bolt), the dowel pins (two), and the secondary separator plate (H). Do not let the check balls (I) (two) fall out.

41. Remove the regulator valve body (J) (seven bolts), the stator shaft (K), the stator shaft stop (L), the dowel pins (two), and the regulator separator plate (M).

42. Remove the main valve body (N) (8 mm: three bolts, 6 mm: seven bolts). Do not let the lubrication check valve (O) fall out.

43. Remove the torque converter check valve (P) and the valve spring (Q).

44. Remove the ATF pump driven gear shaft (R), then remove the ATF pump driven gear (S) and ATF pump drive gear (T).

45. Remove the dowel pins (two) and the main separator plate (U).

46. Remove the ATF passage pipe (V).

47. Remove the ATF magnet (W), clean it, then reinstall.

48. Remove the O-ring (X) from the ATF strainer, and replace a new O-ring when reassembling the transmission.

49. Remove the O-ring (Y) from the stator shaft, and replace a new O-ring when reassembling the transmission.

50. Clean the inlet opening (A) of the ATF strainer (B) thoroughly with compressed air, then check that it is good condition that the inlet opening is not clogged.

4WD





2WD





51. Check the ATF strainer for clogs, debris, or damage. If the strainer is clogged or damaged, replace it.