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Home >> Toyota >> 2008 >> Highlander Base, AWD >> Repair and Diagnosis >> Brakes >> Mechanical - Hydraulic >> Brakes - Mechanical (Except Hybrid) >> Brake Booster >> Inspection

Brake Booster: Inspection

  1. INSPECT BRAKE VACUUM CHECK VALVE ASSEMBLY 
    1. Check that there is ventilation from the booster to the engine, and no ventilation from the engine to the booster. If the results are not as specified, replace the brake vacuum check valve assembly.
      Fig 1: Identifying Brake Vacuum Check Valve Assembly
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