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Home › Jeep › 2021 › Grand Cherokee Trackhawk › Repair and Diagnosis › Transmission › Transmission Control Systems › 8HP95 Automatic Transmission (Service Information) › Valve Body › Removal

Valve Body: Removal

CAUTION:

The Transmission Control Module (TCM), or Transmission Control Module Assembly (TCMA) is extremely sensitive to Electrostatic Discharge (ESD). Always use a ground strap and follow the ESD guidelines in ELECTROSTATIC DISCHARGE SENSITIVE DEVICES. Failure to follow these instructions may result in damage to the TCM/TCMA.

  1. Raise and support the vehicle. Refer to HOISTING, STANDARD PROCEDURE .
  2. Drain the transmission fluid. Refer to FLUID AND FILTER, STANDARD PROCEDURE .
    GC0152193Courtesy of CHRYSLER GROUP, LLC
  3. Turn the locking mechanism lock (1) of the transmission wire harness connector counter-clockwise and disconnect the wire harness connector from the transmission.
    GC0170254Courtesy of CHRYSLER GROUP, LLC
    NOTE:

    Inspect the gasket for reuse. If the seal is cut or torn, replace the gasket.

  4. Remove the transmission oil pan bolts (1).
  5. Remove the transmission oil pan (2) and gasket.
    GC0170496Courtesy of CHRYSLER GROUP, LLC
  6. Remove the transmission oil filter (1).
    GC0190550Courtesy of CHRYSLER GROUP, LLC
  7. Disconnect the Manual Park Release (MPR) cable (1) from the MPR lever (2).
    GC0152243Courtesy of CHRYSLER GROUP, LLC
  8. Remove the Manual Park Release (MPR) lever nut (2) and remove the MPR lever (1).
    GC0152275Courtesy of CHRYSLER GROUP, LLC
  9. Reinstall the MPR lever (2) 180 degrees offset. Using a tie strap (3), secure the lever into position so the park release fork remains in the same position for installation of the valve body assembly.
    GC0154626Courtesy of CHRYSLER GROUP, LLC
  10. If equipped, disconnect the Hydraulic Impulse Oil Storage (HIS) (1) wire harness connector.
  11. If equipped, remove three bolts (2 and 3) and the HIS (1).
    GC0152103Courtesy of CHRYSLER GROUP, LLC
  12. Remove the valve body assembly end bolts (3).
  13. Lift the wire harness connector lock (2).
  14. Remove the speed sensor bolt (1) and pull the speed sensor (4) loose from the case.
    GC0152117Courtesy of CHRYSLER GROUP, LLC
  15. Using (special tool #10377, Remover/Installer, Guide Sleeve) (1) carefully pull the wire harness insulator (2) straight out from the transmission case (3).
    GC0190541Courtesy of CHRYSLER GROUP, LLC
  16. Remove two bolts and hand install (special tool #10379, Pins, Valve Body Alignment) (1).
  17. Use an appropriate tool on one of the alignment pins to assist in holding the valve body in position while removing the remaining fasteners.
    GC0169780Courtesy of CHRYSLER GROUP, LLC
  18. Remove remaining valve body assembly bolts.
  19. Remove the valve body assembly from the transmission.
    GC0152241Courtesy of CHRYSLER GROUP, LLC
    NOTE:

    The fluid port may remain in the valve body upon removal, remove and DISCARD  the O-rings.

  20. Remove the fluid transfer port (1) from the transmission.
  21. Remove and DISCARD  the O-ring (2) and seal (3).
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