What Are the Reasons for Stiff Car Brakes?

1 Answers
McEdward
07/30/25 2:13am
Car brakes becoming stiff mainly due to the following reasons: 1. Brake pads thinning, poor quality of brake pads, foreign objects in the brake pads, or rust on the brake discs, etc. In general cases, pressing the brakes a few more times can alleviate the abnormal noise. 2. Increased pedal travel during braking. The main reasons for increased brake travel are air entering the brake system, insufficient brake fluid, possible leaks, or severe wear of the brake pads. 3. Braking deviation. Mainly caused by uneven wear of the brake pads or issues with the brake calipers. 4. Brakes becoming hard. Primarily due to a failure of the vacuum booster, resulting in no power assistance for the brakes, or caused by frequent braking. 5. Rebound when pressing the brakes. Mostly due to uneven surfaces of the brake discs or pads, or deformation of the wheel rims.
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