1. Low Brake Fluid: Check the brake fluid level in the reservoir. If it's low, add brake fluid as per the manufacturer's recommendation. Low brake fluid can cause the brake pedal to feel spongy or hard.
2. Air in Brake Lines: Air in the brake lines can also make the brake pedal feel hard. This can happen if there's a leak in the brake system or if the brake lines have been opened for any reason. To fix this, you'll need to bleed the brake lines to remove the air.
3. Faulty Brake Master Cylinder: The brake master cylinder is responsible for generating hydraulic pressure when you press the brake pedal. If the master cylinder is faulty, it may not be able to generate enough pressure, which can make the brake pedal feel hard.
4. Seized Brake Calipers or Wheel Cylinders: If the brake calipers or wheel cylinders are seized, they won't be able to move freely, which can make the brake pedal feel hard. This can happen due to rust, corrosion, or other issues.
5. Faulty Brake Booster: The brake booster assists in amplifying the force you apply to the brake pedal. If the brake booster is faulty, it may not be able to provide enough assistance, which can make the brake pedal feel hard.
6. Damaged Brake Lines or Hoses: If the brake lines or hoses are damaged, they can restrict the flow of brake fluid and make the brake pedal feel hard.
If you're not comfortable troubleshooting and solving the issue yourself, it's best to take your car to a qualified mechanic for proper diagnosis and repair. Brake issues can be serious and shouldn't be ignored.
