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Home >> Chevrolet >> 2008 >> HHR LS, Automatic >> Repair and Diagnosis >> Transmission >> Hydraulic Diagrams >> Automatic Transaxle - 4T45-E - Removal & Installation, Service, Overhaul, Troubleshooting & Diagnosis >> Repair Instructions - On Vehicle >> Intermediate/Fourth Servo Assembly Replacement >> Disassembly Procedure

Disassembly Procedure

    Fig 1: Identifying Intermediate/Fourth Servo Components
    GM417997Courtesy of GENERAL MOTORS CORP.
  1. Remove the piston and pin assembly (76 and 77) from the servo cover (80).
  2. Remove the snap ring (70) from the servo pin (76).
  3. Remove the piston (77) and the servo cushion springs (68) from the servo pin (76).
  4. Remove the servo piston seals (78, 79) from the servo cover (80).
  5. Discard the servo piston seals (78 and 79). Do not reuse the servo piston seals.
    6. Fig 2: View Of Intermediate/Fourth Servo Inspection Areas
    GM55105Courtesy of GENERAL MOTORS CORP.
  6. Inspect all components for damage.
  7. Inspect the fluid feed holes for proper opening.
  8. Inspect the bolt hole threads for debris and stripping.
  9. Inspect the seal grooves for damage.
  10. Clean and dry each component.
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