LEMON Manuals: Even more car manuals for everyone
Home >> Hummer >> 2008 >> H3 Luxury, Automatic >> Repair and Diagnosis >> External Pages >> Different car >> Section 23 (Automatic Transmission - 4L60-E/4L65-E/4L70-E - Removal & Installation, Service, Overhaul, Troubleshooting & Diagnosis) >> On-Vehicle Repair Information >> Accumulator Assembly, Spacer Plate, and Gaskets >> Removal Procedure

Removal Procedure

WARNING: This page is about a different car, the 2008 Isuzu i-370, 2008 Isuzu i-290, 2008 GMC Canyon, and 2008 Chevrolet Colorado. However, it is still accessible from the selected car via links, so may be relevant.
  1. Remove the transmission oil pan and filter. Refer to Automatic Transmission Fluid and Filter Replacement .
    2. IMPORTANT: The 1-2 accumulator can be removed without removing the control valve assembly.
  2. Remove the control valve body. Refer to Valve Body and Pressure Switch Replacement .
    3. Fig 1: View Of 1-2 Accumulator Cover Retaining Bolts
    GM1403685Courtesy of GENERAL MOTORS CORP.
  3. Remove the accumulator cover retaining bolts.
  4. Remove the 1-2 accumulator cover assembly.
    • RWD (1)
    • 4WD (2)
    5. Fig 2: 1-2 Accumulator Components
    GM298151Courtesy of GENERAL MOTORS CORP.
  5. Disassemble the 1-2 accumulator.
    1. Blow compressed air into the 1-2 accumulator cover, as shown, to remove the 1-2 accumulator piston.
    2. Remove the 1-2 accumulator inner and outer springs.
  6. Inspect the 1-2 accumulator inner and outer springs for cracks.
    7. Fig 3: View Of Accumulator Piston Seal & Accumulator Piston
    GM298143Courtesy of GENERAL MOTORS CORP.
  7. Remove the 1-2 accumulator piston seal (1) from the 1-2 accumulator piston.
  8. Inspect the 1-2 accumulator piston for the following defects:
    • Porosity
    • Cracks
    • Scoring
    • Nicks and scratches
    9. Fig 4: Inspecting 1-2 Accumulator Cover
    GM7734Courtesy of GENERAL MOTORS CORP.
  9. Inspect the 1-2 accumulator cover for the following defects:
    • Porosity
    • Cracks
    • Scoring
    • Nicks and scratches
    10. Fig 5: View Of Spacer Plate Support Retaining Bolts
    GM1403684Courtesy of GENERAL MOTORS CORP.
  10. Remove the spacer plate support retaining bolts.
    • RWD (4)
    • 4WD (3, 4)
    11. IMPORTANT: Use care not to drop the following items that will be removed along with the spacer plate:
    • The number 1 checkball
    • The 3-4 accumulator spring
  11. Remove the spacer plate support.
    • RWD (1)
    • 4WD (2)
    12. Fig 6: View Of Spacer Plates And Spacer Plate Body Gasket
    GM14469Courtesy of GENERAL MOTORS CORP.
  12. Remove the following:
    • The spacer plate to valve body gasket
    • The spacer plate
    • The spacer plate to transmission case gasket
    13. Fig 7: Identifying 3-4 Accumulator Piston
    GM647519Courtesy of GENERAL MOTORS CORP.
  13. Remove the 3-4 accumulator piston (2).
  14. Inspect the 3-4 accumulator spring for cracks.
    15. Fig 8: View Of Accumulator Piston Seal & Accumulator Piston
    GM298143Courtesy of GENERAL MOTORS CORP.
  15. Remove the 3-4 accumulator piston seal (1) from the 3-4 accumulator piston.
  16. Inspect the 3-4 accumulator piston for the following defects:
    • Porosity
    • Cracks
    • Scoring
    • Nicks and scratches
scientia non olet · About LEMON Manuals