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Home >> Hummer >> 2008 >> H2 4D Utility Wagon >> Repair and Diagnosis >> External Pages >> Different car >> Section 19 (Automatic Transmission - 4L60-E/4L65-E/4L70-E - Introduction (2 Of 2)) >> Repair Instructions >> Off-Vehicle Repair Instructions >> 3-4 Accumulator Installation

3-4 Accumulator Installation

WARNING: This page is about a different car, the 2007 Hummer H2. However, it is still accessible from the selected car via links, so may be relevant.
    Fig 1: 3-4 Accumulator Piston & Piston Oil Seal Ring
    GM1730059Courtesy of GENERAL MOTORS CORP.
  1. Inspect the 3-4 accumulator piston (44) for the following conditions:
    • Porosity
    • Cracks
    • Scoring
    • Nicks and scratches
  2. Install the 3-4 accumulator piston oil seal ring (45) on the 3-4 accumulator piston (44).
    3. Fig 2: 3-4 Accumulator Piston & Accumulator Spring
    GM1730065Courtesy of GENERAL MOTORS CORP.
  3. Install the 3-4 accumulator piston (44) and seal assembly into the bore.
  4. Inspect the 3-4 accumulator spring (46) for cracks.
    5. IMPORTANT: Some models do not use a 3-4 accumulator spring.
  5. Install the 3-4 accumulator spring.
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