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Home >> Chevrolet >> 2002 >> C3500 HD 8.1 G, Automatic >> Repair and Diagnosis >> External Pages >> Different car >> Section 1580 (Automatic Transmission - 4T45-E - Removal & Installation, Service, Overhaul, Troubleshooting & Diagnosis) >> Off-Vehicle Repair Instructions >> Intermediate/Fourth Servo Disassemble

Intermediate/Fourth Servo Disassemble

WARNING: This page is about a different car, the 2009 Saturn Vue. However, it is still accessible from the selected car via links, so may be relevant.
    Fig 1: View Of Intermediate/Fourth Servo Components
    GM1778405Courtesy 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 spring (68), or springs (139), 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: Exploded View Of Low/Reverse Servo Assembly
    GM1778408Courtesy 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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