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Home >> Chevrolet >> 2020 >> Impala Premier >> Repair and Diagnosis >> Brakes >> Mechanical - Hydraulic >> Hydraulic Brakes >> Repair Instructions >> Brake Master Cylinder Replacement >> 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 brake pedal becomes firm to deplete the power vacuum brake booster vacuum reserve.
  3. If equipped with RPO LFX, remove the intake manifold cover. Refer to Intake Manifold Cover Replacement (LFX) .
  4. Using a suitable tool, remove and properly dispose of the brake fluid from the master cylinder reservoir.
  5. Without draining the coolant and without disconnecting the hoses, position aside the radiator surge tank. Refer to Radiator Surge Tank Replacement (LFX) .
  6. Disconnect the brake fluid level indicator switch electrical connector.
  7. Release the brake fluid level indicator switch harness from the clips on the master cylinder reservoir and position aside.
  8. GM2739671

    Disconnect the master cylinder secondary brake pipe fitting (1).

  9. Cap the brake pipe fitting to prevent brake fluid loss and contamination.
  10. GM2739672

    Disconnect the master cylinder primary brake pipe fitting (1).

  11. Cap the brake pipe fitting to prevent brake fluid loss and contamination.
  12. GM2739668
    NOTE:

    Do not reuse the master cylinder nuts.

    Remove and discard the master cylinder nuts (1).

  13. GM2739669

    Remove the master cylinder (1).

  14. GM2753364

    Remove the master cylinder O-ring seal (1).