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Home >> Dodge and Ram >> 2021 >> Durango R/T, AWD >> Repair and Diagnosis >> Transmission >> Transmission Control Systems >> 8HP70 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 (ESD) SENSITIVE DEVICES . Failure to follow these instructions may result in damage to the TCM/TCMA.

  1. Disconnect and isolate the negative battery cable.
  2. Raise and support the vehicle. Refer to HOISTING, STANDARD PROCEDURE .
  3. Drain the transmission fluid. Refer to FLUID AND FILTER, STANDARD PROCEDURE .
    GC0152193Courtesy of CHRYSLER GROUP, LLC
  4. Turn the locking mechanism lock (1) of the adapter plug counter-clockwise and disconnect the connector from the transmission.
    GC0152099Courtesy of CHRYSLER GROUP, LLC
    NOTE:

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

  5. Remove the thirteen oil pan retaining bolts (2).
  6. Carefully detach the oil pan (1) and gasket.
    GC0158366Courtesy of CHRYSLER GROUP, LLC
  7. Detach the Manual Park Release (MPR) cable (1) from the lever (2).
  8. Using a suitable tie strap (3), secure the MPR lever into position so the park release fork remains in the same position for installation of the valve body assembly.
    GC0158349Courtesy of CHRYSLER GROUP, LLC
  9. Remove the nuts (2) from the rear mount to the transmission crossmember.
  10. Using a high stand or equivalent tool, carefully raise the back of the transmission.
    GC0154626Courtesy of CHRYSLER GROUP, LLC
  11. If equipped, disconnect the Hydraulic Impulse Oil Storage (H.I.S) (1) connector.
  12. If equipped, remove three bolts (2 and 3) and the H.I.S. accumulator (1).
    GC0152103Courtesy of CHRYSLER GROUP, LLC
  13. Remove the valve body assembly end retainer bolts (3).
  14. Lift the electrical connector lock (2) to release the internal harness end from inside the transmission for valve body assembly removal.
  15. Remove the output speed sensor retaining bolt (1) and pull the sensor (4) loose from the case.
    GC0152117Courtesy of CHRYSLER GROUP, LLC
  16. Using (special tool #10377, Remover/Installer, Guide Sleeve) (1) carefully pull the electrical harness insulator (2) straight out from the transmission case (3).
    GC0190541Courtesy of CHRYSLER GROUP, LLC
  17. Remove two bolts and hand install (special tool #10379, Pins, Valve Body Alignment) (1).
  18. 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
  19. Remove the remaining valve body assembly retaining bolts (1-14).
  20. Carefully lower 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.

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