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Home >> Eagle >> 1996 >> Summit ES, 1.8 C >> Repair and Diagnosis (Single Page) >> Brakes >> Mechanical - Hydraulic >> Disc Brakes & Drum Brakes >> Testing >> Power Brake Unit >> System Check

System Check

  1. Run engine for 2 minutes. Shut engine off, and depress brake pedal several times with normal pressure. If pedal height gradually becomes higher with successive applications, power brake unit is okay. If pedal height remains steady, power brake unit is faulty.
  2. With engine stopped, depress brake pedal repeatedly until pedal height no longer falls. Hold brake pedal down, and start engine. If pedal moves downward slightly, power brake unit is okay. If pedal height does not change, power brake unit is faulty.
  3. With engine running, press and hold brake pedal. Shut off engine. Hold brake pedal for 30 seconds. Brake pedal height should not change. If pedal height falls, power brake unit is faulty.
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