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Home >> Jeep >> 2020 >> Gladiator Altitude, Automatic Trans >> Repair and Diagnosis >> External Pages >> Different car >> Section 4 (Electronic Control Modules (Service Information)) >> Module, Transmission Control (TCM) >> Installation >> Installation 8HP70

Installation 8HP70

WARNING: This page is about a different car, the 2020 Chrysler 300 and 2019 Chrysler 300. However, it is still accessible from the selected car via links, so may be relevant.
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) to the transmission case.
    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 retaining 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 electrical harness insulator (2) to the transmission case (3).
    GC0152103Courtesy of CHRYSLER GROUP, LLC
  7. Lock the electrical connector lock (2) to the internal harness end.
  8. Install the rear valve body retaining 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.
    GC0169780Courtesy of CHRYSLER GROUP, LLC
  12. Tighten the valve body bolts in the sequence shown in illustration 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 specification. Refer to TECHNICAL SPECIFICATIONS .
  15. Connect the HIS electrical 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 fastener (2) to the proper specification. Refer to TECHNICAL SPECIFICATIONS .
    GC0190550Courtesy of CHRYSLER GROUP, LLC
  18. Connect the Manual Park Release (MPR) cable (1) to the lever (2).
    GC0152239Courtesy of CHRYSLER GROUP, LLC
  19. Install the oil pan and gasket.
  20. Install the oil pan retaining bolts and tighten the fasteners to the proper in the sequence shown in illustration. Refer to TECHNICAL SPECIFICATIONS .
    GC0152193Courtesy of CHRYSLER GROUP, LLC
  21. Connect the transmission wire harness connector (1).
    GC0152192Courtesy of CHRYSLER GROUP, LLC
  22. Turn the locking mechanism (1) of the transmission wire harness connector (2) clockwise to lock it in place.
  23. If the valve body is replaced, program the TCM. Refer to MODULE, TRANSMISSION CONTROL (TCM), MODULE PROGRAMMING .
  24. Perform the TRANSMISSION FILL AFTER SERVICE procedure. Refer to TRANSMISSION FILL AFTER SERVICE .
  25. Perform the TRANSMISSION VERIFICATION TEST. Refer to TRANSMISSION VERIFICATION TEST .
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