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Home >> Dodge and Ram >> 2018 >> Charger SXT Plus >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 6 (Nag1 Automatic Transmission (Service Information)) >> Unit, ELECTROHYDRAULIC Control >> Disassembly

Unit, ELECTROHYDRAULIC Control: Disassembly

WARNING: This page is about a different variant/trim than selected.
GC0081222Courtesy of CHRYSLER GROUP, LLC
1 - SOLENOID CAP (if equipped)
2 - SOLENOID CAP (if equipped)
3 - BOLT - M6X32
4 - BOLT - M6X30
5 - LEAF SPRING
6 - MODULATING PRESSURE REGULATING SOLENOID VALVE
7 - SHIFT PRESSURE REGULATING SOLENOID
8 - 3-4 SHIFT SOLENOID
9 - TORQUE CONVERTER LOCK-UP SOLENOID
10 - 1-2/4-5 SHIFT SOLENOID
11 - 2-3 SHIFT SOLENOID
12 - ELECTRICAL CONTROL UNIT
13 - SHIFT PLATE
  1. Remove electrohydraulic unit from the vehicle. Refer to UNIT, ELECTROHYDRAULIC CONTROL, REMOVAL .
  2. Remove solenoid caps (1, 2) if equipped.
  3. Unscrew Torx® socket bolts (3, 4).
    NOTE:

    Pay attention to the different lengths of the Torx® socket bolts.

  4. Remove leaf springs (5).
  5. Withdraw solenoid valves (6 - 11) from shift plate (13).
    NOTE:

    Check O-rings on solenoid valves for damage and replace if necessary.

  6. Bend away retaining lug on stiffening rib on transmission oil temperature sensor.
  7. Remove electrohydraulic control module (12) from the shift plate (13).
    GC0081233Courtesy of CHRYSLER GROUP, LLC
    A - OPERATING AND LUBRICATING PRESSURE REGULATING VALVES AND 2-3 OVERLAP VALVE
    B - 1-2/4-5 SHIFT GROUP AND SHIFT, SHIFT VALVE, AND REGULATING VALVE PRESSURE REGULATING VALVES
    C - 3-4 SHIFT GROUP
    D - 2-3 SHIFT GROUP, TCC LOCK-UP AND B2 REGULATING VALVES
  8. Note the locations of the major shift valve group components for assembly reference.
    • A - Operating and Lubricating Pressure Regulating valves and 2-3 Overlap valve
    • B - 1-2/4-5 Shift Group and Shift, Shift Valve, and Regulating Valve Pressure Regulating Valves
    • C - 3-4 Shift Group
    • D - 2-3 Shift Group, TCC Lock-up, and B2 Regulating Valves
    GC0081234Courtesy of CHRYSLER GROUP, LLC
    1 - BOLTS - 29
    2 - VALVE HOUSING
    3 - SEALING PLATE
    4 - VALVE BODY
    5 - LEAF SPRING
    NOTE:

    Pay great attention to cleanliness for all work on the shift plate. Fluffy cloths must not be used. Leather cloths are particularly good. After dismantling, all parts must be washed and blown out with compressed-air, noting that parts may be blown away.

  9. Unbolt leaf spring (5).
  10. Unscrew Torx® bolts (1).
  11. Remove valve housing (2) from valve body (4).
  12. Remove sealing plate (3).
    GC0081235Courtesy of CHRYSLER GROUP, LLC
    1 - SOLENOID VALVE STRAINERS
  13. Remove the strainers (1) for the modulating pressure and shift pressure control solenoid valves from the valve housing.
    GC0081236Courtesy of CHRYSLER GROUP, LLC
    1 - CONVERTER LOCK-UP SOLENOID STRAINER
  14. Remove the strainer (1) in the inlet to torque converter lock-up control solenoid valve.
    GC0081237Courtesy of CHRYSLER GROUP, LLC
    1 - STEEL CHECK BALLS
    2 - CENTRAL STRAINER
    3 - STEEL CHECK BALLS
    4 - PLASTIC CHECK BALLS
    5 - PLAIN DOWEL PIN
    NOTE:

    A total of 12 valve balls are located in the valve body, four made from plastic (4) and eight from steel (1, 3).

  15. Note the location of all check balls (1, 3, 4) and the central strainer (2) for re-installation. Remove all check balls (1, 3, 4) and the central strainer (2).
    GC0081238Courtesy of CHRYSLER GROUP, LLC
    1 - B2 SHIFT VALVE
    5 - TCC DAMPER VALVE - if equipped
    2 -2-3 HOLDING PRESSURE SHIFT VALVE
    6 - TCC LOCK-UP REGULATOR VALVE
    3 - 2-3 COMMAND VALVE
    7 - SIDE COVER
    4 - 2-3 SHIFT PRESSURE
     
  16. Remove the screws holding the side cover (7) to the valve body and valve housing.
  17. Remove the B-2 Shift Valve assembly (1), 2-3 Holding Pressure Valve assembly (2), 2-3 Command Valve assembly (3), 2-3 Shift Pressure assembly (4), TCC Damper Valve (5) if equipped and the TCC Lock-Up Regulator Valve assembly (6) from the valve body.
  18. Check all valves for ease of movement and shavings.
    GC0081239Courtesy of CHRYSLER GROUP, LLC
    1 - 1-2 / 4-5 OVERLAP REGULATING SLEEVE AND PISTON
    4 - SHIFT SOLENOID PRESSURE REGULATING VALVE
    2 - SHIFT PRESSURE REGULATING VALVE
    5 - SIDE COVER
    3 - CONTROL VALVE PRESSURE REGULATOR
     
  19. Remove the screws holding the side cover (5) to the valve body and valve housing.
  20. Remove the 1-2 / 4-5 Overlap Regulating Valve, Sleeve, and Piston assembly (1), Shift Pressure Regulating Valve assembly (2), Control Valve Pressure Regulator assembly (3), and the Shift Solenoid Pressure Regulating Valve (4) from the valve body.
  21. Check all valves for ease of movement and shavings.
    GC0081240Courtesy of CHRYSLER GROUP, LLC
    1 - 1-2 / 4-5 COMMAND VALVE
    3 - 1-2 / 4-5 SHIFT PRESSURE
    2 - 1-2 / 4-5 HOLDING PRESSURE SHIFT VALVE
    4 - SIDE COVER
  22. Remove the screws holding the side cover (4) to the valve body and valve housing.
  23. Remove the 1-2 / 4-5 Command valve assembly (1), 1-2 / 4-5 Holding Pressure Shift Valve (2) and the 1-2 / 4-5 Shift Pressure Shift Valve assembly (3) from the valve body.
  24. Check all valves for ease of movement and shavings.
    NOTE:

    The sleeves and pistons of the overlap regulating valves must not be mixed up.

    GC0081241Courtesy of CHRYSLER GROUP, LLC
    1 - SELECTOR VALVE
    4 - 3-4 SHIFT PRESSURE
    2 - 3-4 HOLDING PRESSURE SHIFT VALVE
    5 - 3-4 OVERLAP REGULATING VALVE, SLEEVE, AND PISTON
    3 - 3-4 COMMAND VALVE
    6 - SIDE COVER
  25. Remove the screws holding the side cover (6) to the valve body and valve housing.
  26. Remove the sector valve (1).
  27. Remove 3-4 Holding Pressure Shift Valve assembly (2), 3-4 Command Valve assembly (3), 3-4 Shift Pressure Shift Valve assembly (4) and the 3-4 Overlap Regulating Valve Sleeve and Piston assembly (5) from the valve body.
  28. Check all valves for ease of movement and shavings.
    GC0081242Courtesy of CHRYSLER GROUP, LLC
    1 - LINE PRESSURE REGULATING VALVE
    3 - 2-3 OVERLAP REGULATING VALVE, SLEEVE, AND PISTON
    2 - LUBRICATING PRESSURE REGULATING VALVE
    4 - SIDE COVER
  29. Remove the screws holding the side cover (4) to the valve body and valve housing.
  30. Remove the Line Pressure Regulating Valve assembly (1), Lubricating Pressure Regulating Valve assembly (2) and the 2-3 Overlap Regulating Valve, Sleeve and Piston assembly (3) from the valve body.
  31. Check all valves for ease of movement and shavings.
    GC0081243Courtesy of CHRYSLER GROUP, LLC
    1 - PRESSURE FEED VALVE
  32. Remove the pressure supply valve (1) from the valve body.
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