What to Do When the Car Won't Start and the Brake Pedal is Hard to Press?
1 Answers
It is likely due to a lack of vacuum assistance, and you may need to apply more force. Here are the reasons why the brake pedal might be hard to press: Leakage or malfunction of the car's vacuum booster pump: It's important to understand that the force applied to the brake pedal is amplified by the brake booster pump. If the pump fails, the brake loses its main assist, making it difficult to press. Related to the booster pump: If you press the brake pedal after the engine is turned off, this is also related to the brake booster pump. The brake booster pump only continuously generates vacuum when the engine is running. When the engine is off, it relies on the residual vacuum assistance, which will restore after the engine starts again—this is not a malfunction.