Accumulator Assembly: Removal

WARNING: This page does not describe the selected car, but rather 20 other vehicles, including the 2004 GMC Yukon XL, 2004 GMC Yukon, 2004 GMC Sierra, 2004 Chevrolet Tahoe, and 2004 Chevrolet Suburban. However, it is still accessible from the selected car via links, so may be relevant.

Remove the transmission filter.
Remove the control valve body. See VALVE BODY & PRESSURE SWITCH .
Remove the accumulator cover bolts. See Fig 1 .
Remove the 1-2 accumulator cover.
Disassemble the 1-2 accumulator as follows:
1. Blow compressed air into the 1-2 accumulator cover in order to remove the 1-2 accumulator piston. See Fig 2 .
2. Remove the 1-2 accumulator inner and outer springs.
Inspect the 1-2 accumulator inner and outer springs for cracks.
Remove the 1-2 accumulator piston seal (1) from the 1-2 accumulator piston. See Fig 3 .
Inspect the 1-2 accumulator piston for the following defects:
- Porosity.
- Cracks.
- Scoring.
- Nicks and scratches.
Inspect the 1-2 accumulator cover for the following defects:
- Porosity.
- Cracks.
- Scoring.
- Nicks and scratches.
See Fig 4 .
Remove the spacer plate support bolts. See Fig 5 .
NOTE: Use care not to drop the number one checkball, the 3-4 accumulator spring and the 3-4 accumulator pin.
Remove the spacer plate support.
Remove the spacer plate to valve body gasket, the spacer plate and the spacer plate to transmission case gasket. See Fig 6 .
Remove the 3-4 accumulator piston. See Fig 7 .
Inspect the 3-4 accumulator spring for cracks.
Remove the 3-4 accumulator piston seal (1) from the 3-4 accumulator piston. See Fig 3 .
Inspect the 3-4 accumulator piston for the following defects:
- Porosity.
- Cracks.
- Scoring.
- Nicks and scratches.