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Home >> Chevrolet >> 2002 >> Blazer 4D Utility, 4WD, Part Time >> Repair and Diagnosis >> External Pages >> Different car >> Section 1830 (Automatic Transaxle - 4T45-E - Introduction (2 Of 2)) >> Repair Instructions >> Repair Instructions - Off Vehicle >> Low and Reverse Servo Assemble and Installation

Low and Reverse Servo Assemble and Installation

WARNING: This page is about a different car, the 2007 Saturn Vue. However, it is still accessible from the selected car via links, so may be relevant.
    Fig 1: Exploded View Of Servo Assembly
    GM1803666Courtesy of GENERAL MOTORS CORP.
  1. Assemble the servo cushion spring (68), or springs (139), and the servo piston (69) onto the servo pin (67).
  2. Install the snap ring onto the servo pin (67) in order to retain the servo cushion springs (68) and the servo piston (69).
  3. Assemble the new seals (71, 72) onto the servo piston (69) and the servo cover (73).
  4. Assemble the servo piston assembly (67-70) into the servo cover (73). Lubricate the piston seals with transmission fluid in order to aid in assembly.
    5. Fig 2: Identifying Servo Return Spring
    GM20169Courtesy of GENERAL MOTORS CORP.
  5. Install the servo return spring (66) into the transmission case (51).
  6. Install the servo cover and piston assembly over the servo return spring (66).
    7. NOTE: Hand tighten servo bolts to prevent bore damage.
    NOTE: Refer to FASTENER NOTICE in Cautions and Notices.
  7. Install the three servo cover bolts (25). Hand start the bolts.

    Tighten:  Tighten the bolts to 12 N.m (9 lb ft).

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