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Home >> Chevrolet >> 2005 >> Malibu LS >> Repair and Diagnosis >> External Pages >> Different car >> Section 707 (Automatic Transaxle - 4T80-E - Removal & Installation, Service, Overhaul, Troubleshooting & Diagnosis) >> Repair Instructions - On Vehicle >> Control Valve Body Assembly Replacement >> Removal Procedure

Removal Procedure

WARNING: This page is about a different car, the 2008 Buick Lucerne. However, it is still accessible from the selected car via links, so may be relevant.
  1. Remove the bottom pan and seal, scavenge screens, and the lip seals. Refer to Transfer Oil Pump Inlet Screen and Pipe Seal Replacement .
    2. Fig 1: View Of Oil Transfer Plate
    GM792054Courtesy of GENERAL MOTORS CORP.
  2. Remove the bolts from the oil transfer plate and the wire harness extension retaining clip.
  3. Remove the oil transfer plate.
    4. Fig 2: View Of Wire Harness Assembly
    GM792055Courtesy of GENERAL MOTORS CORP.
  4. Disconnect the wire harness extension from the wire harness assembly.
    5. Fig 3: Identifying Detent Lever, Retainer & Valve Link
    GM792057Courtesy of GENERAL MOTORS CORP.
    IMPORTANT: Do not reuse the retainer (2), it must be replaced.
  5. Use a small screwdriver in order to disconnect the manual valve link retainer (2) from the manual valve link (3).
    6. IMPORTANT: Do not pry the internal mode switch assembly.
  6. Remove the manual valve link (3) from the inside detent lever (1).
    7. Fig 4: View Of Lower Valve Assembly
    GM791424Courtesy of GENERAL MOTORS CORP.
  7. Remove the two nuts and fourteen bolts from the lower valve assembly.
  8. Remove the lower valve assembly (consisting of the channel plate, control valve body, accumulator assembly, and wire harness extension) from the transaxle case as a single unit.
  9. For disassembly of the lower control valve body assembly. Refer to Control Valve Lower Body Disassemble .
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