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Home >> Chevrolet >> 2018 >> Spark LT, Automatic CVT Trans >> Repair and Diagnosis >> External Pages >> Different car >> Section 62 (Hydraulic Brake System) >> Repair Instructions >> Power Brake Booster Vacuum Check Valve and Hose Replacement (LHD) >> Removal Procedure

Removal Procedure

WARNING: This page is about a different car, the 2017 Chevrolet Spark. However, it is still accessible from the selected car via links, so may be relevant.
  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 brake booster vacuum reserve.
  3. Disconnect the electrical connector from the power brake booster vacuum sensor, as equipped.
    4. Fig 1: Vacuum Hose And Vacuum Pump
    GM4007468Courtesy of GENERAL MOTORS COMPANY
  4. Disconnect the vacuum hose (1) from the vacuum pump (2) in an engine.
    5. Fig 2: Vacuum Hose, Vacuum Brake Booster Check Valve And Vacuum Brake Booster
    GM4007488Courtesy of GENERAL MOTORS COMPANY
  5. Remove the vacuum hose and the vacuum brake booster check valve (1) from the vacuum brake booster (2).
    6. Fig 3: Vacuum Brake Booster Check Valve And Vacuum Hose
    GM4007494Courtesy of GENERAL MOTORS COMPANY
  6. Remove the vacuum brake booster check valve (1) from the vacuum hose (2), as necessary.
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