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Home >> Acura >> 2004 >> 1.7EL Standard >> Repair and Diagnosis >> Brakes >> Mechanical - Hydraulic >> Disc & Drum >> Brake Booster Test >> Leak Test

Leak Test

  1. Press the brake pedal with the engine running, then stop the engine. If the pedal height does not vary while pressed for 30 seconds, the vacuum booster is OK. If the pedal rises, the booster is faulty.
  2. With the engine stopped, press the brake pedal several times using normal pressure. When the pedal is first pressed, it should be low. On consecutive applications, the pedal height should gradually rise. If the pedal position does not vary, check the booster check valve.
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