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Home >> Hummer >> 2003 >> H2 >> Repair and Diagnosis >> Transmission >> Automatic Trans >> Automatic Transmission - Introduction, Removal & Installation & Service >> Repair Instructions >> Control Valve Body Disassemble

Control Valve Body Disassemble

    Fig 1: Identifying Manual Valve
    GM13146Courtesy of GENERAL MOTORS CORP.
    CAUTION: Refer to Valve Springs Can Be Tightly Compressed Caution .
  1. Remove the manual valve (340).
    2. Fig 2: Exploded View Of Forward Abuse & Low Overrun Components
    GM13239Courtesy of GENERAL MOTORS CORP.
  2. Remove the forward accumulator cover bolts (364) and the forward accumulator cover (363).
  3. Remove the forward accumulator spring (356), forward accumulator piston (354), and the forward accumulator pin (355).
  4. Remove the low overrun valve spring (362) and the low overrun valve (361).
  5. Remove the coiled spring pin (360) and the bore plug (359).
  6. Remove the forward abuse valve spring (358) and the forward abuse valve (357).
    7. Fig 3: 1-2 Shift Solenoid & Retainer
    GM405071Courtesy of GENERAL MOTORS CORP.
  7. Remove the solenoid retainer (395) and the 1-2 shift solenoid (367A).
  8. Remove the 1-2 shift valve (366) and the 1-2 shift valve spring (365).
    9. Fig 4: 2-3 Shift Solenoid & Retainer
    GM405074Courtesy of GENERAL MOTORS CORP.
  9. Remove the solenoid retainer (395) and the 2-3 shift solenoid (367B).
  10. Remove the 2-3 shuttle valve (369) and the 2-3 shift valve (368).
    11. Fig 5: Coiled Spring Pin, 1-2 Accumulator Valve Sleeve, 1-2 Accumulator Valve & 1-2 Accumulator Valve Spring
    GM13144Courtesy of GENERAL MOTORS CORP.
  11. Remove the coiled spring pin (360).
  12. Remove the 1-2 accumulator valve sleeve (372).
  13. Remove the 1-2 accumulator valve (371) and the 1-2 accumulator valve spring (370).
    14. Fig 6: Locating Pressure Control Solenoid
    GM735075Courtesy of GENERAL MOTORS CORP.
  14. Remove the solenoid retainer bolt (364A) and the solenoid retainer (378). Remove the pressure control solenoid (377).
    15. CAUTION: Refer to Valve Springs Can Be Tightly Compressed Caution .
  15. Compress the actuator feed limit valve spring (375).
  16. Remove the bore plug retainer (395) and release the spring slowly.
  17. Remove the bore plug (376).
  18. Remove the actuator feed limit valve spring (375) and the actuator feed limit valve (374).
    19. Fig 7: 3-2 Control Solenoid & Retainer
    GM405083Courtesy of GENERAL MOTORS CORP.
  19. Remove the solenoid retainer (395) and the 3-2 control solenoid (394).
  20. Remove the 3-2 control valve (391) and the 3-2 control valve spring (392).
    21. Fig 8: Identifying 3-2 Downshift Valve & Reverse Abuse Valve Assemblies
    GM405086Courtesy of GENERAL MOTORS CORP.
    CAUTION: Refer to Valve Springs Can Be Tightly Compressed Caution .
  21. Remove the bore plug retainer (395) and the bore plug (381).
  22. Remove the 3-2 downshift valve spring (390) and the 3-2 downshift valve (389).
  23. Remove the coiled spring pin (360) and the bore plug (359).
  24. Remove the reverse abuse valve spring (388) and the reverse abuse valve (387).
    25. Fig 9: Bore Plug Retainer, Bore Plug, 3-4 Shift Valve Spring & 3-4 Shift Valve
    GM405092Courtesy of GENERAL MOTORS CORP.
    CAUTION: Refer to Valve Springs Can Be Tightly Compressed Caution .
  25. Remove the bore plug retainer (395) and the bore plug (381).
  26. Remove the 3-4 shift valve spring (386) and the 3-4 shift valve (385).
    27. Fig 10: Bore Plug Retainer, Bore Plug, Regulator Apply Valve, Regulator Apply Spring & Isolator Valve
    GM736214Courtesy of GENERAL MOTORS CORP.
  27. Remove the bore plug retainer (395) and the bore plug (381).
  28. Remove the regulator apply valve (380) and the regulator apply spring (397) and the isolator valve (398).
    29. Fig 11: Bore Plug Retainer, Bore Plug, 3-4 Relay Valve, 4-3 Sequence Valve & 4-3 Sequence Valve Spring
    GM405094Courtesy of GENERAL MOTORS CORP.
  29. Remove the bore plug retainer (395) and the bore plug (381).
  30. Remove the 3-4 relay valve (384) and the 4-3 sequence valve (383) and the 4-3 sequence valve spring (382).
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