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Home >> Isuzu >> 2007 >> Ascender RWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 274 (Automatic Transmission - 4L60-E/4L65-E/4L70-E - Removal & Installation, Service, Overhaul, Troubleshooting & Diagnosis) >> Repair Instructions - On Vehicle >> Accumulator Assembly, Spacer Plate & Gaskets >> Installation Procedure

Installation Procedure

WARNING: This page is about a different car, the 2008 Isuzu Ascender, 2008 GMC Envoy, and 2008 Chevrolet TrailBlazer. However, it is still accessible from the selected car via links, so may be relevant.
    Fig 1: View Of Accumulator Piston Seal & Accumulator Piston
    GM298143Courtesy of GENERAL MOTORS CORP.
  1. Install a new 3-4 accumulator piston seal (1) to the 3-4 accumulator piston.
    2. Fig 2: Locating Transmission Case Components
    GM686979Courtesy of GENERAL MOTORS CORP.
  2. Install the 3-4 accumulator pin (1) into the transmission case and retain the pin with J 36850  . See Special Tools .
    3. Fig 3: Identifying 3-4 Accumulator Piston
    GM647519Courtesy of GENERAL MOTORS CORP.
  3. Install the 3-4 accumulator piston (2) onto the pin (1) in the transmission case.

    Ensure that the 3-4 accumulator piston legs face away from the transmission case.

    4. Fig 4: Locating Transmission Case Components
    GM686979Courtesy of GENERAL MOTORS CORP.
  4. Install the J 25025-B  (2, 3) to the transmission case. See Special Tools .
    5. Fig 5: View Of Solenoid Screens, Check Ball & Accumulator Spring
    GM686994Courtesy of GENERAL MOTORS CORP.
  5. Install the spacer plate to transmission case gasket and the spacer plate to valve body gasket to the spacer plate. Use J 36850  in order to retain the gaskets to the spacer plate. See Special Tools .
    • The case gasket is identified by a C.

      Be sure to place the case gasket on the transmission case side of the spacer plate.

    • The valve body gasket is identified by a V.

      Be sure to place the valve body gasket on the valve body side of the spacer plate.

  6. Ensure that the solenoid screens (1, 2) are in place on the spacer plate.
  7. Place the checkball (3) on the spacer plate in the location shown.
  8. Place the 3-4 accumulator spring (4) on the spacer plate.
  9. Install the spacer plate and related components to the transmission.
    10. Fig 6: View Of Spacer Plate Support & Bolts
    GM14468Courtesy of GENERAL MOTORS CORP.
    NOTE: Refer to Fastener Notice .
  10. Install the spacer plate support and the spacer plate support retaining bolts.

    Tighten:  Tighten the spacer plate support retaining bolts to 11 N.m (97 lb in).

    11. Fig 7: View Of Spacer Plate Support & Checkball Location
    GM687023Courtesy of GENERAL MOTORS CORP.
  11. After installing the spacer plate support (2), look through the hole in the spacer plate to ensure that the checkball (1) has remained in the proper location.
    12. Fig 8: View Of Accumulator Piston Seal & Accumulator Piston
    GM298143Courtesy of GENERAL MOTORS CORP.
  12. Install a new 1-2 accumulator piston seal (1) to the 1-2 accumulator piston.
    13. Fig 9: View Of 1-2 Accumulator Inner & Outer Springs
    GM71462Courtesy of GENERAL MOTORS CORP.
  13. Install the 1-2 accumulator inner and outer springs to the 1-2 accumulator cover.
  14. Install the 1-2 accumulator piston onto the pin in the 1-2 accumulator cover.

    Ensure that the piston legs face the accumulator cover.

    15. Fig 10: View Of 1-2 Accumulator Cover & Bolts
    GM14464Courtesy of GENERAL MOTORS CORP.
  15. Install the 1-2 accumulator cover and the accumulator cover retaining bolts.

    Tighten:  Tighten the accumulator cover retaining bolts to 11 N.m (97 lb in).

  16. Remove the J 25025-B  from the transmission case. See Special Tools .
  17. Install the control valve body. Refer to Valve Body and Pressure Switch Replacement .
  18. Install the transmission oil pan and filter. Refer to Automatic Transmission Fluid and Filter Replacement .
  19. Lower the vehicle.
  20. Fill the transmission to the proper level with DEXRON® VI transmission fluid. Refer to Transmission Fluid Check .
    21. IMPORTANT: It is recommended that transmission adaptive pressure (TAP) information be reset.
    Resetting the TAP values using a scan tool will erase all learned values in all cells. As a result, the engine control module (ECM), powertrain control module (PCM) or transmission control module (TCM) will need to relearn TAP values. Transmission performance may be affected as new TAP values are learned.
  21. Reset the TAP values. Refer to Transmission Adaptive Functions (TCM) .
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