What Are the Reasons for the Brake Pedal Being Hard to Press and the Car Failing to Start?
1 Answers
The reasons for the brake pedal being hard to press and the car failing to start include a leaking vacuum booster pump or a damaged brake booster pump. Below are the specific explanations: 1. Vacuum Booster Pump Leakage: If the car's vacuum booster pump is leaking or malfunctioning, it should be noted that the force applied to the brake pedal is amplified by the brake booster pump. If it fails, the brake loses its power assistance, making it difficult to press down. 2. Brake Booster Pump Damage: Pressing the brake pedal after turning off the engine 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 solely on the residual vacuum assistance left from previous operations.