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Home >> GMC >> 2018 >> Acadia Denali, FWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 63 (Hydraulic Brake System) >> Repair Instructions >> Power Brake Booster Vacuum Check Valve and Hose Replacement (LGX) >> Removal Procedure

Removal Procedure

WARNING: This page is about a different car, the 2016 Cadillac ATS. However, it is still accessible from the selected car via links, so may be relevant.
  1. Apply the brake pedal several times until the pedal becomes firm to deplete the power vacuum brake booster vacuum reserve.
  2. Disconnect the power brake booster vacuum sensor electrical connector.
    3. Fig 1: Power Brake Booster Vacuum Sensor
    GM4066216Courtesy of GENERAL MOTORS COMPANY
  3. Power Brake Booster Vacuum Sensor - Remove
  4. Front End Sheet Metal Diagonal Brace Replacement - Left Side (ATS-V)Front End Sheet Metal Diagonal Brace Replacement - Left Side - Remove
    5. Fig 2: Power Brake Booster Vacuum Hose Quick Connect
    GM4066222Courtesy of GENERAL MOTORS COMPANY
  5. Power Brake Booster Vacuum Hose Quick Connect @ Vacuum Pipe - Disconnect
    6. Fig 3: Engine Mount Vacuum Hose
    GM4066225Courtesy of GENERAL MOTORS COMPANY
  6. Vacuum Hose @ Engine Mount - Disconnect
  7. Power Brake Booster Vacuum Hose Assembly - Remove
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