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Home >> Jeep >> 2014 >> Grand Cherokee SRT >> Repair and Diagnosis >> Transmission >> Transmission Control Systems >> 8HP70 Automatic Transmission (Service Information) >> Removal >> 3.0L Diesel

3.0L Diesel

CAUTION:

The transmission and torque converter must be removed as an assembly to avoid component damage. The converter drive plate, oil pump, or oil seal can be damaged if the converter is left attached to the drive plate during removal. Be sure to remove the transmission and converter as an assembly.

NOTE:

If the transmission is being reconditioned (clutch/seal replacement) or replaced, it is necessary to perform the TCM Adaptation Procedure using the scan tool. Refer to MODULE, TRANSMISSION CONTROL, STANDARD PROCEDURE .

  1. Disconnect the battery negative cable.
  2. Raise and support the vehicle.
  3. Remove the Selective Range Catalyst (SRC).

    Refer to CATALYST, SELECTIVE CATALYTIC REDUCTION (SCR), REMOVAL .

  4. Remove the heat shield below rear prop shaft.
  5. If equipped, remove all skid plates and close out panels.
    Fig 1: Mechanical Park Release Cable, Lever & Zip Tie
    GC0158366Courtesy of CHRYSLER GROUP, LLC
  6. Disconnect the Mechanical Park Release (MPR) cable (1) from the lever (2).
  7. Rotate the MPR lever (2) forward to engage neutral position and secure it with a suitable zip tie (3).
  8. Remove the rear propeller shaft.

    Refer to SHAFT, DRIVE, REAR, REMOVAL .

    Fig 2: Supporting Transmission With Jack
    GC0158384Courtesy of CHRYSLER GROUP, LLC
  9. Support the transmission with a suitable jack.
    NOTE:

    Be careful not to damage to transmission pan.

    Fig 3: Crossmember Bolts & Nuts
    GC0158349Courtesy of CHRYSLER GROUP, LLC
  10. Remove the transmission mount nuts (2).
  11. Remove the crossmember bolts (1 and 3).
  12. Remove the crossmember.
  13. If 4WD, remove the front propeller shaft.

    Refer to SHAFT, DRIVE, FRONT, REMOVAL .

  14. If 4WD, remove the front propeller shaft heat shield.
  15. Remove the starter.

    Refer to STARTER, REMOVAL .

  16. Remove the transfer case.

    For MP2010, refer to REMOVAL . For MP3010, refer to REMOVAL . For MP3023, refer to REMOVAL .

    Fig 4: 13-Pin Plug Connector
    GC0158361Courtesy of CHRYSLER GROUP, LLC
  17. Disconnect the 13-pin plug connector (1). Turn the connector counterclockwise to release.
    Fig 5: 13-Pin Connector Bracket & Bolts
    GC0158423Courtesy of CHRYSLER GROUP, LLC
  18. Remove the 13-pin connector bracket (2) from the transmission case and exhaust.
  19. Unclip all remaining wiring harness from the transmission.
    Fig 6: Differential Pressure Sensor Bracket & Bolts
    GC0158428Courtesy of CHRYSLER GROUP, LLC
  20. Remove the Differential pressure sensor bracket (1) from the right side of the torque convertor housing.
    NOTE:

    Removing this bracket will gain clearance to the under body.

    Fig 7: Exhaust Bracket & Bolts
    GC0158418Courtesy of CHRYSLER GROUP, LLC
  21. Remove the exhaust bracket (1) from the converter housing to the exhaust pipe.
    Fig 8: Locking Tab, MPR Cable & Bracket
    GC0158322Courtesy of CHRYSLER GROUP, LLC
  22. Release the locking tab (1) from the MPR cable (2) and remove the cable from the bracket (3).
    Fig 9: Locking Covers
    GC0158317Courtesy of CHRYSLER GROUP, LLC
  23. Unclip the Jiffy Tite locking covers (1) and slide them back onto the transmission lines.
  24. Using (special tool #9546, Disconnect Tool) remove the trans cooler lines.
  25. Disconnect trans vent hose.
    Fig 10: Cooler Line Clip
    GC0158324Courtesy of CHRYSLER GROUP, LLC
  26. Disconnect left front cooler line clip (1).
    Fig 11: NVH Cover On Crankshaft Damper
    GC0158420Courtesy of CHRYSLER GROUP, LLC
  27. Remove the NVH cover (1) from the crankshaft damper.
    Fig 12: Torque Converter Bolts
    GC0138700Courtesy of CHRYSLER GROUP, LLC
    NOTE:

    3.6L engine shown in illustration, diesel starter pocket similar.

  28. Rotate crankshaft clockwise and remove six torque converter bolts (1) through the starter pocket.
    NOTE:

    There are three sets 2 torque converter bolts located 120° apart from each other.

    NOTE:

    If necessary, mark crankshaft pulley for torque converter bolt location every 120°

    Fig 13: Removing/Installing Transmission To Engine Bolts
    GC0118998Courtesy of CHRYSLER GROUP, LLC
  29. Remove two engine to transmission bolts (3).
    NOTE:

    It may be necessary to support the rear of the engine during transmission removal.

  30. Remove remaining transmission to engine bolts (4).
    Fig 14: Identifying Transmission
    GC0082966Courtesy of CHRYSLER GROUP, LLC
  31. Carefully work transmission (2) and torque converter assembly rearward off the engine (1) block dowels.
    NOTE:

    Be careful not to damage or bend the transmission oil cooler lines.

  32. Hold torque converter in place during transmission removal.
  33. Lower transmission and remove assembly from under the vehicle.
  34. To remove the torque converter, carefully slide the torque converter out of the transmission.
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