What Are the Reasons for Heavy Car Brakes?
1 Answers
There are several reasons for heavy car brakes, including insufficient vacuum booster assistance, failure of the brake booster pump, and air in the brake fluid lines. Below are detailed explanations and solutions: Insufficient Vacuum Booster Assistance: This issue can be caused by a malfunction in the booster itself or a damaged vacuum booster pipe, leading to vacuum leakage and insufficient assistance. Additionally, poor engine performance can result in insufficient vacuum, reducing the booster's effectiveness. The solution is to replace the vacuum booster. Failure of the Brake Booster Pump: In the operation of the brake booster pump, the engine plays a crucial role. Due to the limited power of small-displacement engines, when the driver repeatedly presses the brake pedal, the engine may fail to support the brake booster pump, causing it to malfunction. The solution is to inspect and repair the brake booster pump. Air in the Brake Fluid Lines: When air is present in the brake fluid lines, it compresses under pressure, unlike brake fluid, which does not compress. This results in a soft brake pedal feel, reducing the braking force transmitted from the master cylinder to the wheel cylinders. Consequently, the friction between the brake pads and discs decreases, leading to longer braking distances and increasing the risk of rear-end collisions or accidents. The solution is to refill the brake fluid lines completely.