Brake Booster: Inspection

INSPECT BRAKE VACUUM CHECK VALVE ASSEMBLY
1. Inspect vacuum check valve.
  1. Slide the clip and disconnect the vacuum hose.
  2. Remove the vacuum check valve.
  3. Check that there is ventilation from the booster to engine, and no ventilation from the engine to the booster.
  4. If any fault is found, replace the vacuum check valve.
  Fig 1: Inspecting Brake Vacuum Check Valve Assembly
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