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Home >> Buick >> 2018 >> Encore Preferred, AWD >> Repair and Diagnosis (Single Page) >> Brakes >> Mechanical - Hydraulic >> Hydraulic Brake System >> Repair Instructions >> Power Brake Booster Vacuum Hose Replacement (LE2) >> Removal Procedure

Removal Procedure

  1. With the engine OFF, apply and release the brake pedal several times until the brake pedal becomes firm to deplete the power brake booster vacuum reserve.
  2. Disconnect the power brake booster vacuum sensor electrical connector.
  3. GM4081854

    Power Brake Booster Vacuum Sensor(1) - Remove

  4. GM4081858

    Retainer(1) - Remove

  5. GM4081861

    Quick Connect Fitting(1) - Disconnect

  6. Power Brake Booster Vacuum Hose Assembly - Remove
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