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Home >> GMC >> 2003 >> Safari Van Cargo, AWD >> Repair and Diagnosis >> Transmission >> Automatic Trans >> Automatic Transmission - 4L60-E/4L65-E (Service & Replacement) >> Repair Instructions >> Accumulator Assembly, Spacer Plate, and Gaskets >> Removal Procedure

Removal Procedure

  1. Raise and support the vehicle. Refer to LIFTING AND JACKING THE VEHICLE in General Information.
  2. Remove the transmission oil pan and filter. Refer to AUTOMATIC TRANSMISSION FLUID/FILTER REPLACEMENT .

    Important:  The 1-2 accumulator can be removed without removing the control valve assembly.

  3. Remove the control valve body. Refer to VALVE BODY AND PRESSURE SWITCH REPLACEMENT .
  4. Remove the accumulator cover retaining bolts.
    Fig 1: 1-2 Accumulator Cover Assembly
    G01565917Courtesy of GENERAL MOTORS CORP.
  5. Remove the 1-2 accumulator cover assembly.
  6. Disassemble the 1-2 accumulator.
    1. 6.1. Blow compressed air into the 1-2 accumulator cover, as shown, to remove the 1-2 accumulator piston.
    2. 6.2. Remove the 1-2 accumulator inner and outer springs.
    Fig 2: Blowing Compressed Air Into 1-2 Accumulator Cover
    G01565918Courtesy of GENERAL MOTORS CORP.
  7. Inspect the 1-2 accumulator inner and outer springs for cracks.
  8. Remove the 1-2 accumulator piston seal (1) from the 1-2 accumulator piston.
  9. Inspect the 1-2 accumulator piston for the following defects:
    • Porosity
    • Cracks
    • Scoring
    • Nicks and scratches
      Fig 3: Removing 1-2 Accumulator Piston Seal From 1-2 Accumulator Piston
      G01565919Courtesy of GENERAL MOTORS CORP.
  10. Inspect the 1-2 accumulator cover for the following defects:
    • Porosity
    • Cracks
    • Scoring
    • Nicks and scratches
      Fig 4: Locating Inspected Point On 1-2 Accumulator Cover
      G01565920Courtesy of GENERAL MOTORS CORP.
  11. Remove the spacer plate support retaining bolts.

    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
    • The 3-4 accumulator pin
  12. Remove the spacer plate support.
    Fig 5: Spacer Plate Support
    G01565921Courtesy of GENERAL MOTORS CORP.
  13. Remove the spacer plate to valve body gasket, the spacer plate and the spacer plate to transmission case gasket.
    Fig 6: Removing Spacer Plate To Valve Body Gasket & Spacer Plate To Transmission Case Gasket
    G01565922Courtesy of GENERAL MOTORS CORP.
  14. Remove the 3-4 accumulator piston (2).
  15. Inspect the 3-4 accumulator spring for cracks.
    Fig 7: 3-4 Accumulator Piston
    G01565923Courtesy of GENERAL MOTORS CORP.
  16. Remove the 3-4 accumulator piston seal (1) from the 3-4 accumulator piston.
    Fig 8: Removing 3-4 Accumulator Piston Seal From 3-4 Accumulator Piston
    G01565924Courtesy of GENERAL MOTORS CORP.
  17. Inspect the 3-4 accumulator piston for the following defects:
    • Porosity
    • Cracks
    • Scoring
    • Nicks and scratches
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