Brake Booster (For Sedan) Inspection

Check the vacuum check valve.

1. Slide the clip and disconnect the vacuum hose.
   

2. Remove the vacuum check valve from the brake booster.
   





3. Check that there is ventilation from the booster to the engine, and no ventilation from the engine to the booster. If any fault is found, replace the vacuum hose assembly.
   

4. Install the vacuum check valve onto the brake booster.
   

5. Connect the vacuum hose with the clip.