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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 - Off Vehicle >> Intermediate/Fourth Servo Assemble and Installation

Intermediate/Fourth Servo Assemble and Installation

    Fig 1: Identifying Intermediate/Fourth Servo Components
    GM417997Courtesy of GENERAL MOTORS CORP.
  1. Install the servo cushion springs (68) and the servo piston (77) onto the servo pin (76).
  2. Install the snap ring (70) onto the servo pin (76) in order to retain the springs (68) and piston (77).
  3. Install the new seals (78 and 79) onto the servo piston (77) and the servo cover (80).
  4. Install the servo piston assembly into the servo cover (80). Lubricate the piston seals with transmission fluid in order to aid in assembly.
    5. Fig 2: Identifying Servo Components Inspection Areas
    GM20168Courtesy of GENERAL MOTORS CORP.
  5. Install the servo return spring (75) into the transmission case (51).
  6. Install the servo cover (80) and the piston assembly over the servo return spring (75).
    7. NOTE: Hand tighten servo bolts to prevent bore damage.
    NOTE: Refer to Fastener Notice .
  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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