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Home >> GMC >> 2003 >> Safari Van Cargo, AWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 770 (General Hydraulic Brake System) >> Repair Instructions >> Hydraulic Brake Booster Accumulator Replacement >> Removal Procedure

Removal Procedure

WARNING: This page is about a different car, the 2002 GMC Safari and 2002 Chevrolet Astro. However, it is still accessible from the selected car via links, so may be relevant.
  1. Depress brake pedal at least twenty times to relieve pressure in the accumulator.
  2. Remove the master cylinder nuts from the hydraulic booster.
  3. Remove the master cylinder and secure away from the hydraulic booster.
  4. Remove the hydraulic booster. Refer to Hydraulic Brake Booster Replacement .
  5. Place the J 26889  over the end of the accumulator.
  6. Install the nut on the stud.
  7. Depress the accumulator with a C-clamp.
    Fig 1: Depressing Accumulator With A C-Clamp
    G02502304Courtesy of GENERAL MOTORS CORP.
  8. Rotate retaining ring (2) until either end of the ring is under the access hole (1).
  9. Depress and hold the ring with a small tool inserted into the access hole
    Fig 2: Retaining Ring Access Hole
    G02502305Courtesy of GENERAL MOTORS CORP.
  10. Remove the accumulator retainer ring (1) using a small hook shaped tool.
    Fig 3: Accumulator Retainer Ring
    G02502306Courtesy of GENERAL MOTORS CORP.
  11. Release the C-clamp.
  12. Remove the nut from the stud.
  13. Remove the J 26889.
  14. Remove the accumulator (2) and O-ring seal (3).