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Home >> Hummer >> 2006 >> H2 4D Utility Pickup >> Repair and Diagnosis >> Transmission >> Hydraulic Diagrams >> Automatic Transmission - 4L60-E/4L65-E/4L70-E - Removal & Installation, Service, Overhaul, Troubleshooting & Diagnosis >> Repair Instructions >> 1-2 Accumulator Assemble

1-2 Accumulator Assemble

    Fig 1: Inspecting 1-2 Accumulator Piston
    GM7733Courtesy of GENERAL MOTORS CORP.
  1. Inspect the 1-2 accumulator piston (56) for the following conditions:
    • Porosity
    • Cracks
    • Scoring
    • Nicks and Scratches
  2. Install a 1-2 accumulator piston oil seal ring (55) on the 1-2 accumulator piston (56).
    3. Fig 2: Locating 1-2 Accumulator Housing Inspection Areas
    GM828121Courtesy of GENERAL MOTORS CORP.
  3. Inspect the 1-2 accumulator housing for the following conditions:
    • Porosity
    • Cracks
    • Scoring
    • Nicks and Scratches
    • Debris or blocked passages
    4. Fig 3: View Of 1-2 Inner & Outer Springs
    GM1220956Courtesy of GENERAL MOTORS CORP.
    IMPORTANT: Some models do not use 1-2 accumulator spring - inner (104).
  4. Install the 1-2 inner (104) and outer (54) accumulator springs.
  5. Install the 1-2 accumulator piston (56).
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