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Home >> Isuzu >> 2007 >> i-290 LS, Standard >> Repair and Diagnosis >> External Pages >> Different car >> Section 48 (Automatic Transaxle - 4T80-E - Introduction (2 Of 2)) >> Repair Instructions >> Repair Instructions - Off Vehicle >> Accumulator Housing Assemble

Accumulator Housing Assemble

WARNING: This page is about a different car, the 2007 Cadillac DTS. However, it is still accessible from the selected car via links, so may be relevant.

Tools Required

    Fig 1: Identifying Inspection Points On Accumulator Housing
    GM15484Courtesy of GENERAL MOTORS CORP.
  1. Inspect the accumulator housing for damage or scoring in the bores.
  2. Inspect all fluid passages for debris.
    3. Fig 2: View Of Forward Accumulator Assembly & Reverse Accumulator Assembly
    GM15483Courtesy of GENERAL MOTORS CORP.
  3. Install new seals (947, 961) onto the accumulator pistons (946, 960).
  4. Install the following parts:
    1. The forward accumulator pin (962) into the accumulator housing (944)
    2. The forward accumulator piston (960)
    3. The spring (963)
  5. Install the following parts:
    1. The reverse accumulator pin (948)
    2. The reverse accumulator piston (946)
    3. The reverse accumulator spring (949)
  6. Install the following parts:
    1. The accumulator housing cover gasket (964)
    2. The accumulator housing cover (965)
      3. NOTE: Refer to Fastener Notice in Cautions and Notices.
    3. The five 8 mm accumulator housing cover bolts (966)

      Tighten:  Tighten the bolts to 8-14 N.m (6-10 lb ft).

    7. Fig 3: Expanded View Of 1-2 Accumulator Assembly
    GM509718Courtesy of GENERAL MOTORS CORP.
  7. Install a new seal (969) onto the 1-2 accumulator piston (968).
  8. Install the following parts:
    • The 1-2 accumulator spring (973)
    • The 1-2 accumulator pin (970)
    • The 1-2 accumulator piston (968)
    • The snap ring (349). Install the snap ring onto the 1-2 accumulator pin (970) after you have passed the pin through the top of the accumulator housing (944).
    • The 1-2 accumulator inner spring assembly (971)
    9. Fig 4: Identifying 3-4 Accumulator Housing Components
    GM509725Courtesy of GENERAL MOTORS CORP.
  9. Install the following parts:
    • The 3-4 accumulator spring (950)
    • The 3-4 accumulator pin (977)
    • The 3-4 accumulator piston (975)
    • The snap ring (349). Install the snap ring onto the 3-4 accumulator pin (977) after you have passed the pin through the top of the accumulator housing (944).
    10. Fig 5: Identifying Checkball Cavities
    GM15486Courtesy of GENERAL MOTORS CORP.
  10. Install the checkballs (#1-4) into their proper cavities in the accumulator housing (944). Retain the checkballs with J 36850  or equivalent. See Special Tools .
    11. Fig 6: Accumulator Housing
    GM1652805Courtesy of GENERAL MOTORS CORP.
  11. Install the J 39630-2  into the lower control valve body gasket for the accumulator housing. See Special Tools . Make sure that the 1-2 accumulator inner spring assembly (971) goes into the channel plate washer side down.
  12. Install the accumulator housing (944) onto the lower channel plate and install the bolts (534, 951, 952, 954) and hand tighten.
  13. Remove the J 39630-2  and install the rest of the accumulator housing bolts, including bolts (534) from the channel plate side. See Special Tools .

    Tighten:  Tighten the bolts (534, 951, 952, 954) in a star pattern to 8-14 N.m (6-10 lb ft).

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