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

Valve Body: Installation

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.

GC0152241Courtesy of CHRYSLER GROUP, LLC
  1. Install the fluid port (1) with NEW  O-rings (2) and seal (3).
    GC0190541Courtesy of CHRYSLER GROUP, LLC
  2. Install the valve body assembly to the transmission using the previously installed (1) (special tool #10379, Pins, Valve Body Alignment) as a guide.
  3. Use an appropriate tool on one of the alignment pins to assist in holding the valve body in position while installing the remaining fasteners.
    GC0169780Courtesy of CHRYSLER GROUP, LLC
  4. Install the valve body assembly bolts not including 16-18 and hand tighten.
  5. Remove the pins and install the remaining bolts.
    GC0152117Courtesy of CHRYSLER GROUP, LLC
  6. Using (special tool #10377, Remover/Installer, Guide Sleeve) (1) carefully install the wire harness insulator (2) to the transmission case (3).
    GC0152103Courtesy of CHRYSLER GROUP, LLC
  7. Lock the wire harness connector lock (2) to the internal wire harness end.
  8. Install the valve body assembly end bolts (3) and hand tighten.
    GC0175210Courtesy of CHRYSLER GROUP, LLC
  9. When installing the OSS into the case, take care to position the OSS guide pin as shown below or DAMAGE  to the sensor may result. This is the INCORRECT  alignment of the pin.
    GC0175216Courtesy of CHRYSLER GROUP, LLC
  10. This is the CORRECT  installation and pin alignment.
    GC0175226Courtesy of CHRYSLER GROUP, LLC
  11. Install the speed sensor to the case install the speed sensor bolt (1) and hand tighten.
    Fig 1: Valve Body Tightening Sequence
    GC0169780Courtesy of CHRYSLER GROUP, LLC
  12. Tighten the valve body bolts in the sequence shown to 7 Nm (62 in.-lbs.).
    GC0154626Courtesy of CHRYSLER GROUP, LLC
  13. If equipped, install the Hydraulic Impulse Oil Storage (HIS) accumulator (1).
  14. Tighten the bolts (2 and 3) to the proper specifications. Refer to TORQUE SPECIFICATIONS  .
  15. Connect the HIS (1) wire harness connector.
    GC0152275Courtesy of CHRYSLER GROUP, LLC
  16. Remove the tie strap (3).
    GC0152243Courtesy of CHRYSLER GROUP, LLC
  17. Return the Manual Park Release (MPR) lever (1) to the original position, tighten the MPR lever nut (2) to the proper specifications. Refer to TORQUE SPECIFICATIONS  .
    GC0190550Courtesy of CHRYSLER GROUP, LLC
  18. Connect the Manual Park Release (MPR) cable (1) to the lever (2).
    GC0170496Courtesy of CHRYSLER GROUP, LLC
  19. Install the transmission oil filter (1).
    GC0170254Courtesy of CHRYSLER GROUP, LLC
  20. Install the transmission oil pan gasket, the oil pan (2) and the bolts (1).
    Fig 2: Transmission Oil Pan Tightening Sequence
    GC0152239Courtesy of CHRYSLER GROUP, LLC
  21. Tighten the transmission oil pan bolts to 4 N.m (35 in. lbs.) + 45° in the sequence shown.
    GC0152193Courtesy of CHRYSLER GROUP, LLC
  22. Connect the transmission wire harness connector (1).
    GC0152192Courtesy of CHRYSLER GROUP, LLC
  23. Turn the locking mechanism (1) of the transmission wire harness connector clockwise to lock it in place.
  24. If the valve body is replaced, program the Transmission Control Module (TCM). Refer to MODULE PROGRAMMING .
  25. Perform the TRANSMISSION FILL AFTER SERVICE procedure. Refer to STANDARD PROCEDURE - TRANSMISSION FILL AFTER SERVICE  .
  26. Perform the TRANSMISSION VERIFICATION TEST. Refer to TRANSMISSION VERIFICATION TEST .
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