Hydraulic Brake Booster Accumulator: Removal
WARNING: This page does not describe the selected car, but rather 12 other vehicles, including the 2003 GMC Yukon XL, 2003 GMC Yukon, 2003 GMC Sierra, 2003 GMC Cab & Chassis Sierra, and 2003 Chevrolet Tahoe. However, it is still accessible from the selected car via links, so may be relevant.
- Apply the park brake and block the wheels.
- Depress brake pedal at least 10 times in order to relieve pressure in the accumulator.
- Remove the master cylinder from the hydraulic booster. See MASTER CYLINDER .
- Place the Accumulator Piston Compressor (J-26889) over the end of the accumulator. See Fig 1.
- Install the nut on the stud.
- Depress the accumulator with a C-clamp. If the accumulator does not move with moderate pressure, remove the C-clamp and depress the brake pedal 10 times in order to relieve pressure in the accumulator.
- Rotate the retaining ring until either end of the ring is under the access hole. See Fig 2.
- Depress and hold the retaining ring with a small tool inserted into the access hole.
- Remove the accumulator retainer ring using a small hook shaped tool. See Fig 3.
- Release the C-clamp. See Fig 1.
- Remove the nut from the stud.
- Remove the accumulator piston compressor.
- Remove the accumulator and the "O" ring seal. See Fig 3.