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Home >> GMC >> 2006 >> Sierra 1500 HD, RWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 237 (Automatic Transmission - 4L80-E/4L85-E (Service & Replacement)) >> Repair Instructions >> Accumulator Housing Replacement >> Third and Fourth Clutch Accumulator Disassembly

Third and Fourth Clutch Accumulator Disassembly

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Important:  Apply low pressure compressed air to the hole at the top of the accumulator housing to assist with the piston removal.

  1. Remove the 3rd clutch accumulator piston (2).
  2. Remove the 3rd clutch accumulator piston seals (1, 3).
    Fig 1: Removing 3rd Clutch Accumulator Piston & Seals
    G02424513Courtesy of GENERAL MOTORS CORP.
  3. Remove the 4th clutch accumulator piston pin retainer ring (5).
  4. Remove the 4th clutch accumulator piston (4) and pin (2) from the accumulator housing (1).
  5. Remove the 4th clutch accumulator piston pin (2) from the accumulator housing (1).
  6. Remove the 4th clutch accumulator piston seal (3) from the accumulator housing (1).
    Fig 2: Removing 4th Clutch Accumulator Piston & Components
    G02424514Courtesy of GENERAL MOTORS CORP.
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