1. Start the engine, let it run for 1-2 minutes and stop it. Press the brake pedal several times with normal force. If the pedal goes down the first time you press it, but gradually rises the second or third time you press it, the brake booster is working properly. If the pedal height does not change, the booster is faulty.
2. With the engine not running, press the brake pedal several times and check the change in pedal height. Then press the pedal and start the engine. If the pedal moves down a little, the booster is working properly. If the pedal height remains the same, the booster is faulty.
3. With the engine running, press the brake pedal and stop the engine. Keep the pedal pressed for 30 seconds. If the pedal height does not change during this time, the booster is working properly. If the pedal rises, the booster is faulty.
If a malfunction is detected using one of the above methods of testing, check the vacuum hose and booster and eliminate the malfunctions. If the test results are positive, the booster is in good condition.
The original version is stored on the website: hyundaibook.ru
