GM Service Manual Online
For 1990-2009 cars only

Removal Procedure

  1. Remove the oil pan and filter. Refer to Automatic Transmission Fluid and Filter Replacement .

  2. Object Number: 14464  Size: SH
  3. Remove the bolts attaching the accumulator cover and pin to the transmission case.
  4. Remove the cover and pin.

  5. Object Number: 14467  Size: SH
  6. Remove the piston, ring, and springs. The piston and ring may remain inside the cover and pin.
  7. Remove the control valve, if replacing the 3-4 accumulator. Refer to Valve Body .

  8. Object Number: 97226  Size: SH
  9. Remove the spring, piston, ring, and pin.
  10. Inspect the accumulators.

Installation Procedure


    Object Number: 97226  Size: SH
  1. Install the spring, piston, ring, and pin.
  2. Install the control valve, if removed. Refer to Valve Body .

  3. Object Number: 14467  Size: SH
  4. Install the springs, ring, and piston.

  5. Object Number: 14464  Size: SH
  6. Install the cover and pin.
  7. Notice: Use the correct fastener in the correct location. Replacement fasteners must be the correct part number for that application. Fasteners requiring replacement or fasteners requiring the use of thread locking compound or sealant are identified in the service procedure. Do not use paints, lubricants, or corrosion inhibitors on fasteners or fastener joint surfaces unless specified. These coatings affect fastener torque and joint clamping force and may damage the fastener. Use the correct tightening sequence and specifications when installing fasteners in order to avoid damage to parts and systems.

  8. Install the bolts attaching the cover and pin to the transmission case.
  9. Tighten
    Tighten the bolts to 11 N·m (97 lb in)

  10. Install the oil pan and filter. Refer to Automatic Transmission Fluid and Filter Replacement .