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Home >> Oldsmobile >> 2003 >> Aurora >> Repair and Diagnosis >> Transmission >> Automatic Trans >> Automatic Transaxle - 4T80-E >> Repair Instructions >> Lower Valve Assembly Replacement >> Installation Procedure
July 1: So it begins. Don't worry, this is not in the correct legal jurisdiction!

Installation Procedure

  1. For reassembly of the lower control valve body assembly. Refer to VALVE BODIES in Hydra-Matic 4T80-E Overhaul article.
  2. Install the lower valve assembly (consisting of the channel plate, control valve body, accumulator assembly, and the wire harness extension) to the transaxle case as a single unit.
  3. Place the Lower valve assembly over the forward support studs.
  4. Hand start the bolts and nuts to the lower valve assembly.
    5. Fig 1: Installing Lower Valve Assembly
    G01506584Courtesy of GENERAL MOTORS CORP.
    Fig 2: Installing Oil Transfer Plate
    G01506585Courtesy of GENERAL MOTORS CORP.
  5. Install the oil transfer plate.
  6. Position the wire harness extension retaining clip over the appropriate bolt hole in the oil transfer plate.
    NOTE: Refer to FASTENER NOTICE in GM Vehicles Cautions and Notices.
  7. Hand start the bolts to the oil transfer plate. Tighten:  Tighten the Lower valve assembly and the oil transfer plate bolts and nuts to 11 N.m (97 lb in).
    IMPORTANT: Do not reuse retainer (2), it must be replaced.
  8. Insert the manual valve link (3) into the inside detent lever (1). Clip the manual valve link retainer (2) onto the manual valve link (3).
    9. Fig 3: Identifying Manual Valve Link Components
    G01506586Courtesy of GENERAL MOTORS CORP.
  9. Connect the wire harness extension to the wire harness assembly.
  10. Install the bottom pan and seal, the scavenger screens, and the lip seals. Refer to SCAVENGE SCREENS & SEALS REPLACEMENT  .
    11. Fig 4: Locating Wire Harness Extension-To-Wire Harness Assembly Connecting Point
    G01506587Courtesy of GENERAL MOTORS CORP.
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