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Home >> Chevrolet >> 2011 >> Impala LS, 3.9 M >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 7 (Automatic Transmission - 4T65-E - Repair Instructions - On Vehicle) >> Repair Instructions - On Vehicle >> 1-2 or 2-3 Accumulator Piston Assembly and Manual 2-1 Band Servo Piston Assembly Replacement >> Installation Procedure

Installation Procedure

WARNING: This page is about a different variant/trim than selected.
    Fig 1: View Of Manual 2-1 Band Servo
    GM164811Courtesy of GENERAL MOTORS CORP.
  1. Install the manual 2-1 band servo (106-116).
    2. Fig 2: View Of Accumulator Assembly
    GM97365Courtesy of GENERAL MOTORS CORP.
  2. Install the accumulator assembly.
    3. Fig 3: Identifying Accumulator & Manual 2-1 Band Servo Cover Bolts
    GM164809Courtesy of GENERAL MOTORS CORP.
    CAUTION: Refer to Fastener Caution .
  3. Install the manual 2-1 band servo cover bolts (103).

    Tighten:  Tighten the bolts to 25 N.m (18 lb ft).

  4. Install the accumulator cover bolts (131).

    Tighten:  Tighten the bolts to 12 N.m (106 lb in).

  5. Install the filter. Refer to Automatic Transmission Fluid Filter and Seal Replacement .
  6. Lower the vehicle.
    7. NOTE: It is recommended that transmission adaptive pressure (TAP) information be reset.
    Resetting the TAP values using a scan tool will erase all learned values in all cells. As a result, The ECM, PCM or TCM will need to relearn TAP values. Transmission performance may be affected as new TAP values are learned.
  7. Reset the TAP values. Refer to Transmission Adaptive Functions .
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