What Causes the Brakes to Feel Hard?
2 Answers
Brakes feeling hard can be due to insufficient brake booster assistance, vacuum issues, or free travel problems. Below are the detailed explanations: Insufficient Brake Booster Assistance: First, check if the vacuum pipe of the brake booster is clogged. Vacuum Issues: Possible causes include cracks in the atmospheric valve seat, fatigue damage to the diaphragm, cracks or failure of the vacuum valve seat, or malfunction of the vacuum hose valve. Free Travel Problems: When the driver presses the brake pedal, the vehicle's braking does not start immediately. Instead, there is a buffer period to provide a more comfortable feeling for the driver.
I've also experienced hard brakes when driving my own car, which is mostly due to issues with the braking system. The most common cause is a faulty vacuum booster pump, making it feel particularly strenuous to press the brake pedal, as if stepping on a wall. Low or contaminated brake fluid can also harden the pedal because insufficient hydraulic pressure fails to transmit braking force. Additionally, unevenly worn brake pads or dust buildup can cause abnormal brake pedal feedback. Moreover, in older vehicles, air trapped in the brake lines or leaks can lead to harder brakes. Last time I had my car serviced, the mechanic emphasized the importance of regularly checking brake fluid levels and replacing brake pads—don’t overlook these details. If you notice any problems, take your car to a professional shop as soon as possible to avoid safety hazards. Remember, this is no trivial matter—safety always comes first when driving.