LEMON Manuals: Even more car manuals for everyone
Home >> Hyundai >> 2003 >> Accent Base >> Repair and Diagnosis >> Brakes >> Mechanical - Hydraulic >> Disc Brakes & Drum Brakes >> Component Tests >> Power Brake Booster

Power Brake Booster

  1. Run the engine for one or two minutes, and then shut it off. Depress the brake pedal several times at normal foot pressure. If the pedal goes down further at first but rises gradually after the second or third time, the brake booster is functioning properly. If the pedal height doesn't change, the booster is damaged.
  2. With the engine off, depress the brake pedal several times and check on the pedal height change. After that, with the pedal depressed, start the engine. If the pedal goes down slightly, the booster is in good condition. If the pedal height doesn't change, the booster is damaged.
  3. With the engine running, depress the brake pedal and then stop the engine. Hold the pedal depressed for 30 seconds. If the pedal height does not change, the booster is in good condition. if the pedal goes up, the booster is damaged. If one of the above three tests is not okay, check the vacuum hoses and the brake booster and make any necessary corrections. If all tests are OK, the booster is good.
scientia non olet · About LEMON Manuals