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Home >> Chevrolet >> 2006 >> Cobalt LTZ >> Repair and Diagnosis >> External Pages >> Different car >> Section 685 (Automatic Transaxle - 4T45-E - Introduction (2 Of 2)) >> Repair Instructions >> Repair Instructions - Off Vehicle >> Low and Reverse Servo Disassemble

Low and Reverse Servo Disassemble

WARNING: This page is about a different car, the 2007 Pontiac G5 Pursuit, 2007 Pontiac G5, and 2007 Chevrolet Cobalt. However, it is still accessible from the selected car via links, so may be relevant.
    Fig 1: Inspecting Low and Reverse Servo
    GM55103Courtesy of GENERAL MOTORS CORP.
  1. Remove the piston pin assembly (67-70) from the servo cover (73).
  2. Remove the snap ring (70) from the servo pin (67).
  3. Remove the piston (69) and the servo cushion springs (68) from the servo pin (67).
  4. Remove the servo piston seals (71, 72) from the cover (73).
  5. Discard the servo piston seals (71 and 72).
  6. Inspect all the components for damage.
  7. Inspect the fluid feed holes for the proper opening.
  8. Inspect the bolt hole threads for debris or stripping.
  9. Inspect the seal grooves for damage.
  10. Clean and dry each component.
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