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Home >> Chevrolet >> 2022 >> Spark ACTIV, Standard Trans >> Repair and Diagnosis >> Brakes >> Mechanical - Hydraulic >> Hydraulic Brakes >> Repair Instructions >> Brake Master Cylinder Replacement (LHD) >> Removal Procedure

Removal Procedure

WARNING:

Refer to Brake Fluid Irritant Warning .

  1. Turn the ignition switch to the OFF position.
  2. Apply and release the brake pedal several times until the pedal becomes firm to deplete the power vacuum brake booster vacuum reserve.
  3. Remove the battery. Refer to Battery Replacement .
  4. Remove the engine control module. Refer to Engine Control Module Replacement .
  5. Remove the battery tray. Refer to Battery Tray Replacement (without Engine Block Heater) , or Battery Tray Replacement (with Engine Block Heater) .
  6. Thoroughly clean the brake master cylinder reservoir and the brake master cylinder body to remove any dirt and debris.
  7. Disconnect the secondary brake pipe fitting and drain the brake fluid out of the brake master cylinder.
  8. Remove the brake pressure modulator valve secondary pipe. Refer to Brake Pressure Modulator Valve Secondary Pipe Replacement (LHD)  .
  9. Remove the brake pressure modulator valve primary pipe. Refer to Brake Pressure Modulator Valve Primary Pipe Replacement (LHD)  .
  10. Remove the EBCM/BPMV and bracket assembly. Refer to Electronic Brake Control Module with Brake Pressure Modulator Valve Replacement .
  11. GM4007423Courtesy of GENERAL MOTORS COMPANY

    Remove the brake master cylinder nuts (1).

  12. GM4007446Courtesy of GENERAL MOTORS COMPANY

    Remove the brake master cylinder (1) from the power vacuum brake booster.

  13. Remove the brake master cylinder reservoir, if necessary. Refer to Brake Master Cylinder Reservoir Replacement (LHD)  .