Hydraulic Accumulator: Removal
WARNING: This page does not describe the selected car, but rather 6 other vehicles, including the 1988 Buick LeSabre, 1988 Buick Electra, 1987 Buick LeSabre, 1987 Buick Electra, and 1986 Buick LeSabre. However, it is still accessible from the selected car via links, so may be relevant.
Turn ignition off. Discharge brake system pressure. Remove hydraulic accumulator and "O" ring by turning accumulator. See Figure . Ensure no dirt particles fall into open port.