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Home >> Buick >> 2015 >> Regal GS, AWD >> Repair and Diagnosis >> Brakes >> Mechanical - Hydraulic >> Hydraulic Brake System >> Repair Instructions >> Master Cylinder Replacement >> Installation Procedure

Installation Procedure

  1. If installing a new master cylinder, bench bleed the master cylinder. Refer to Master Cylinder Bench Bleeding .
  2. Fig 1: Master Cylinder & O-Ring Seal
    GM2221059Courtesy of GENERAL MOTORS COMPANY
    NOTE:

    Ensure the O-ring seal is properly seated in the groove in the master cylinder body and is not distorted.

  3. Install the master cylinder (1) and master cylinder O-ring seal (2) .
  4. Fig 2: Master Cylinder Nuts
    GM2221057Courtesy of GENERAL MOTORS COMPANY
    CAUTION:

    Refer to Fastener Caution .

  5. Install the master cylinder nuts (1) and tighten to 50 N.m (37 lb ft) .
  6. Fig 3: Master Cylinder Primary And Secondary Brake Pipe Fittings
    GM2219332Courtesy of GENERAL MOTORS COMPANY
  7. Connect the master cylinder primary brake pipe fitting (1) and tighten to 18 N.m (13 lb ft) .
  8. Connect the master cylinder secondary brake pipe fitting (2) and tighten to 18 N.m (13 lb ft) .
  9. Connect the brake fluid level indicator switch electrical connector.
  10. If equipped with the manual transmission, connect the clutch master cylinder reservoir hose. Refer to Clutch Master Cylinder Reservoir Hose Replacement .
  11. Install the radiator surge tank. Refer to Radiator Surge Tank Replacement (LEA, LUK) .
  12. Bleed the hydraulic brake system. Refer to Hydraulic Brake System Bleeding (Manual)  .
  13. Install the intake manifold cover, if removed. Refer to Intake Manifold Cover Replacement .