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Home >> Chevrolet >> 2020 >> Impala Premier >> Repair and Diagnosis >> Brakes >> Mechanical - Hydraulic >> Hydraulic Brakes >> Repair Instructions >> Power Vacuum Brake Booster Replacement >> Installation Procedure

Installation Procedure

  1. GM2280912

    Install the power vacuum brake booster (1) and gasket (2).

  2. GM2280911
    CAUTION:

    Refer to Fastener Caution .

    NOTE:

    Do not over tighten the power vacuum brake booster bolts. If the power vacuum brake booster bolts are over tightened, the brake pedal may remain applied after a high pressure brake pedal application.

    Install the power vacuum brake booster bolts (1) and tighten to 19 N.m (14 lb ft).

  3. GM2280910

    Install the master cylinder (1) to the power vacuum brake booster.

  4. GM2280909

    Install the master cylinder nuts (1) and tighten to 50 N.m (37 lb ft).

  5. Connect the brake fluid level indicator switch electrical connector.
  6. Install the EBTCM. Refer to Electronic Brake and Traction Control Module with Brake Pressure Modulator Valve Replacement .
  7. GM2607858
    NOTE:

    A small amount of denatured alcohol may be used as a lubricant to assist the installation of the power brake booster vacuum sensor.

    Install the power brake booster vacuum sensor (1) to the power vacuum brake booster.

  8. GM2607855

    Install the power brake booster vacuum inlet pipe to the retainers (1) on the dash panel.

  9. Connect the power vacuum brake booster vacuum sensor electrical connector.
  10. GM2347572
    NOTE:

    Install a new power vacuum brake booster pushrod retainer.

    Install a new power vacuum brake booster pushrod retainer to the power vacuum brake booster pushrod.

  11. NOTE:

    Ensure the power vacuum brake booster pushrod retainer is fully seated in the brake pedal arm.

  12. Connect the power vacuum brake booster pushrod retainer (1) to the brake pedal.
  13. Connect the brake pedal position sensor electrical connector. Refer to Brake Pedal Position Sensor Replacement .
  14. Install the radiator surge tank. Refer to Radiator Surge Tank Replacement (LFX) .