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Home >> Hummer >> 2008 >> H2 4D Utility Wagon >> Repair and Diagnosis >> External Pages >> Different car >> Section 132 (Automatic Transmission - 4L60-E/4L65-E/4L70-E - Introduction (2 Of 2)) >> Repair Instructions >> Repair Instructions - Off Vehicle >> Control Valve Body Disassemble

Control Valve Body Disassemble

WARNING: This page is about a different car, the 2007 GMC Yukon XL, 2007 GMC Yukon, 2007 Chevrolet Tahoe, 2007 Chevrolet Suburban, and 2007 Chevrolet Avalanche. However, it is still accessible from the selected car via links, so may be relevant.
    Fig 1: View Of 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: View Of 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: View Of 2-3 Shift Solenoid & 2-3 Shift Valve
    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: View Of 1-2 Accumulator Valve & 1-2 Accumulator Valve Sleeve
    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: View Of Pressure Control Solenoid & Components
    GM1239566Courtesy of GENERAL MOTORS CORP.
  14. Remove the solenoid retainer bolt (364A) and the solenoid retainer (378). Remove the pressure control solenoid (377), note orientation upon removal.
    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: View Of 3-2 Control Solenoid & 3-2 Control Valve
    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: View Of Reverse Abuse Valve & 3-2 Downshift Valve
    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: Locating 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: Identifying Isolator Valve & Regulator Apply 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: View Of 4-3 Sequence Valve & 3-4 Relay Valve
    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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