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Transmission Disassembly

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Special Tools Required 

Mainshaft Holder 07GAB-PF50101

  1. Remove the ATF dipstick (A) and the ATF dipstick guide tube (B).
    Fig 1: Disassembling View Of Automatic Transmission
    G06423406Courtesy of AMERICAN HONDA MOTOR CO., INC.
  2. Remove A/T clutch pressure control solenoid valves A and B (C) (six bolts), the 8 x 102.8 mm ATF feed pipe (D), the 8 x 55.3 mm ATF pipes (E) (two), the O-rings (three), and the gasket.
  3. Remove the shift solenoid valve cover (F) (seven bolts), the dowel pins (two), and the gasket.
  4. Disconnect the shift solenoid valve connectors, then remove the shift solenoid wire harness (G).
  5. Remove A/T clutch pressure control solenoid valve C (H) (four bolts), the 8x53 mm ATF feed pipes (I), the 8 x 36 mm ATF pipe (J), the 8 x 25.2 mm ATF joint pipe (K), the O-rings (two), and the gasket.
  6. Pry the lock tab of the lock washer (L) on the selector control lever (M), and remove the lock nut, the lock washer, the spring washer, and the selector control lever.
  7. Pry the lock tabs of the lock washer (N) on the transmission range switch (O), hold the selector control shaft (P) with a 6.0 mm wrench, and loosen the locknut (Q).
  8. Remove the locknut and the lock washer, then remove the transmission range switch (two bolts).
  9. Remove the input shaft (mainshaft) speed sensor (R), the output shaft (countershaft) speed sensor (S) with the sensor washer (T).
  10. Remove the ATF temperature sensor connector and the harness clamp from the clamp bracket on the ATF cooler line, then remove the ATF temperature sensor (Q).
  11. Remove the 6.0 mm bolts (V), the line bolts (W), the ATF cooler lines (X), and the sealing washers (Y).
  12. Remove the end cover (Z) (three bolts), the dowel pins (two), the O-ring, the snap ring cap (AA) (two bolts), the sealing plug (BB), and the sealing washer (CC).
  13. Remove the transmission fluid pressure switch B (3rd clutch) (DD) and the sealing washer.
  14. Remove the 4th clutch transmission fluid pressure switch (EE) and the sealing washer.
  15. Remove the transmission fluid pressure switch A (2nd clutch) (FF) and the sealing washer.
  16. Install the mainshaft holder onto the mainshaft.
    Fig 2: Slipping Mainshaft Holder Onto Mainshaft
    G06423407Courtesy of AMERICAN HONDA MOTOR CO., INC.
  17. Using a chisel, cut the lock tab (A) off the mainshaft locknut (B).
    NOTE: Keep all of the chiseled particles out of the transmission.
    18. Fig 3: Cutting Lock Tab Off Mainshaft Locknut
    G06423408Courtesy of AMERICAN HONDA MOTOR CO., INC.
  18. Remove the locknut (A) from the mainshaft (B).
    Fig 4: Identifying Locknut And Mainshaft With Lock Washer
    G06423409Courtesy of AMERICAN HONDA MOTOR CO., INC.
  19. Pry the lock washer (C) and remove it.
  20. Remove the transmission housing mounting bolts (A) (4WD: 23 bolts, 2WD; 22 bolts), 12 x 1.25 mm bolt (B), transmission hanger (C), and ground terminal bracket (D).
    Fig 5: Disassembling View Of Automatic Transmission
    G06423410Courtesy of AMERICAN HONDA MOTOR CO., INC.
  21. While expanding the snap ring of the countershaft bearing using snap ring pliers, lift the transmission housing.
    Fig 6: Expanding Snap Ring Of Countershaft Bearing
    G06423411Courtesy of AMERICAN HONDA MOTOR CO., INC.
  22. Release the snap ring pliers, and remove the transmission housing (E), the two dowel pins (F), and the gasket.
  23. Remove the 8 x 151.5 mm ATF feed pipes (G) (two), the 8 x 85 mm pipe (H), and the 8 x 40 mm pipe (I) from the accumulator body.
  24. Remove the 8 x 57.5 mm ATF feed pipe (J) and the 10 x 123 mm pipe (K) from the torque converter housing.
  25. Remove the mainshaft holder from the mainshaft.
  26. Pry the lock tab of the lock washer (L) on the shift fork (M), then remove the bolt and the lock washer.
  27. Unhook the detent spring from the detent arm.
    Fig 7: Unhooking Detent Spring From Detent Arm
    G06423412Courtesy of AMERICAN HONDA MOTOR CO., INC.
  28. Remove the park pawl stop (N), the park pawl (O), the pawl spring (P), and the pawl shaft (Q).
  29. Remove the mainshaft (R), the countershaft (S), the shift fork (M), and the secondary shaft (T) together, and remove the needle bearing (U) from the torque converter housing.
    Fig 8: Identifying Mainshaft, Countershaft, Shift Fork, And Secondary Shaft
    G06423413Courtesy of AMERICAN HONDA MOTOR CO., INC.
  30. Remove the selector control shaft and the park lever link (V).
  31. Remove the oil catch plate (W).
  32. Remove the differential assembly (X).
  33. 4WD: Remove the transfer output shaft (Y).
  34. Remove the baffle plate (Z).
  35. Remove the intermediary shaft (AA).
  36. Remove the ATF strainer (A) (one bolt).
    Fig 9: Disassembling View Of Automatic Transmission
    G06423414Courtesy of AMERICAN HONDA MOTOR CO., INC.
  37. 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).
  38. Remove the 8 x 62 mm ATF feed pipe (F) from the main valve body.
  39. 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.
  40. 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).
  41. Remove the main valve body (N) (8 mm: three bolts, 6 mm: seven bolts). Do not let the lubrication check valve (O) fall out.
  42. Remove the torque converter check valve (P) and the valve spring (Q).
  43. Remove the ATF pump driven gear shaft (R), then remove the ATF pump driven gear (S), and the ATF pump drive gear (T).
  44. Remove the dowel pins (two) and the main separator plate (U).
  45. Remove the ATF passage pipe (V) (one bolt).
  46. Remove the ATF magnet (W), clean it, then reinstall it in the torque converter housing.
  47. Remove the O-ring (X) from the ATF strainer, and replace it with a new O-ring when reassembling the transmission.
  48. Remove the O-ring (Y) from the stator shaft, and replace it with a new O-ring when reassembling the transmission.
  49. Clean the inlet opening (A) of the ATF strainer (B) thoroughly with compressed air, then check that it is good condition and that the inlet opening is not clogged.

    4WD 

    Fig 10: Identifying Inlet Opening (4WD)
    G06423415Courtesy of AMERICAN HONDA MOTOR CO., INC.

    2WD 

    Fig 11: Identifying Inlet Opening (2WD)
    G06423416Courtesy of AMERICAN HONDA MOTOR CO., INC.
  50. Check the ATF strainer for clogs, debris, or damage. If the strainer is clogged or damaged, replace it.
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